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Proof that there is still 10% worth dying for even in crossovers here.

These are recommendations made by Tropers for Harry Potter Crossover fanfic, all of which have to be signed to stay on the page. Feel free to add a fanfic of your own to the list, but remember to use the template found here.

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Double Trouble by kellemarine

  • Recommended by Pumpkin Lore
  • Status: Complete
  • Crossover with The Nightmare Before Christmas.
  • Synopsis: Everyone knows what happened when Sirius fell through the veil. What if something different happened to Harry? Harry ends up in Halloween Town where he meets Jack Skellington. Things change forever for Harry and Jack and nothing will ever be the same. Set 7 ½ years after the Christmas fiasco and immediately after the Ministry battle in Harry Potter and the Order of the Phoenix.
  • Comments: I have to say, I was not expecting this to be any good (as much as I love crossovers, sadly most Fan Fic crossovers are lacking). While some things seem to be Hand Waves or possibly even complete Ass Pulls, depending on how you look at it, the story is quite good, and everything makes sense if you can take some Acceptable Breaks from Canon (like Harry and, according to the author notes, Sirius surviving the fall through the veil). The fic has yet to be completed. *goes to bug the author to write more already review the fic* —Pumpkin Lore

Of Ogres and Kings by Snargaluff Pod

  • Recommended by N8han11
  • Crossover with: Shrek
  • Status: Dead (last updated January 2017)
  • Synopsis: When King Harold suddenly croaks, Shrek learns he will have to rule the land of Far, Far Away, unless he can find a suitable heir to the throne. The most-promising candidate is Fiona's first cousin once removed, Harry. Along with Donkey and Puss in Boots, Shrek sets out to bring Harry back with them, but doing so is a bigger challenge, and a tad more magical, than they expected.
  • Comments: Basically, this charming fic is what would happen if Princess Fiona's cousin happened to be Harry Potter. Everyone appears to be in character, and while the story hasn't quite begun yet, it's still better written than the actual Shrek the Third.


     Anime & Manga 

12 Moves Sideways by Silver Pard

  • Recommended by: Aimsme, rewindreplayrepeat, feral, Fenro, VashTi, Urbandshi
  • Status: Complete
  • Crossover with: Death Note
  • Synopsis: After the Yotsuba Arc, Light becomes the new Defense Against the Dark Arts teacher. Harry decides he needs watching. Oneshot
  • Comments: Despite being short compared to most of the others on this list, 12 Moves Sideways packs a powerful punch. It's beautiful, almost wistful, with hints of something darker—it might just be because this Troper is a Light fan, but her heart broke at the Erised scene.
    • Really wonderful, everything I could ask for in a fic. It is a Death Note fic, though, more than a Harry Potter one.

A Common Enemy by fokker333

  • Recommended by: Pastykake
  • Status: Dead
  • Crossover with: Bleach and Fullmetal Alchemist
  • Synopsis: As the Battle of Hogwarts is lost, the Ministry falls, and the world is on the dawn of war, three vastly different groups unite against a common enemy. Determined to exact their vengeance against the one who destroyed their worlds, they fight. As they battle against the most powerful Dark Lord alive, they must deal with their own personal demons. Who will survive, and who will not?

Absolute by 666Cliche

  • Recommended by: feral
  • Status: Complete
  • Crossover with: Death Note
  • Synopsis: Power corrupts. Absolutely. Harry Potter finds the Death Note and resolves to use it to save the world.
  • Pairing(s): Harry/Ginny, Ron/Hermione
  • Tags: Horror, Supernatural, Dark!Harry

Amanita Citrina by DragonWolfStar

  • Recommended by: Gemini 24, Pastykake
  • Status: Complete
  • Crossover with: Bleach
  • Synopsis: When You-Know-Who tries to summon Death, he doesn't get quite what he expected...
  • Tags: Humour.

Beyond the Veil by MorganBanner

  • Recommended by: Gemini 24
  • Crossover with: Bleach
  • Status: Complete
  • Synopsis: When Sirius Black fell through the Veil, he was expecting fluffy clouds and angels. Suddenly he's plunged into the world of the shinigami, and quickly gets caught up in their troubles. The wars of both worlds are about to take a sudden turn for the worse, and Sirius is right in the middle of it all.

Black Sky by Umei no Mai

  • Recommended by: Beta-Orionis, Dame-Amaryllis, eeveelutionlover2000
  • Crossover with: Reborn! (2004)
  • Status: Dead
  • Synopsis: When you're a Black, you're a Black and nobody gets to hold all the cards except you. Not a Dark Lord with a grudge, not a Headmaster with a prophecy and certainly not the world's most influential Mafia Family... Dorea is as much a Black as a Potter and she is not about to let anybody walk over her! A Fem!Harry story. Slow Build.
  • Notes: Has a complete side story, Parenting is not a Varia Quality.
  • Comments: The Author manages to blend the two worlds together very well, though it is currently focusing more on the 'Harry Potter' side right now seeing as Xanxus is frozen in ice. However the author still gives us looks at what is going on from the point of view of the other characters, although it is told in third-person. Umei no Mai has done a wonderful job with her world building and fusing story elements such as the concept of Flames and what they are and how they operate with/against magic. The characters are well developed and their actions make sense without them coming across as one-dimensional. You also don't need to know much about either story to read it, so I recommend it to everyone to at least try, even if long stories aren't your thing.

The Best Defense, A Good Offense, and a few sidefics by JoIsBishMyoga

  • Recommended by: Crown Clown, Pastykake
  • Crossover with: YuYu Hakusho
  • Status: Complete; Dead; Complete
  • Pairing(s): Hints of Hiei/Kurama and Ron/Hermione
  • Synopsis: Voldemort's return has caught the attention of more than the Order of the Phoenix. The Spirit World's best are on the case, but can they handle Hogwarts (or Harry) without blowing their cover?
  • Comments: One of the best (and longest-running) Harry Potter crossover fics out there. Well-written and better plotted, with fun insights into its view-point characters, this series is one of the crowning jewels of crossover Fan Fic. —Crown Clown

Bleached by bluminous8

  • Recommended by: Magic Kirby
  • Crossover with: Bleach
  • Status: Dead
  • Synopsis: AU- It seems that even in Death Harry is never given a break. His soul ends up in Rokungai where his past prevents him from moving forward. Will he learn to let go?
  • Comments: Harry/Yourichi pairing, A Shinigami!Harry that isn't a purely Kido fighter. The author has several other highly recommended stories on this site.

The Dead of Winter by ForeverFalling86

  • Recommended by: fullmetalpianist
  • Crossover with: Bleach
  • Status: Complete
  • Synopsis: Hitsugaya Toshiro is sent to Hogwarts to investigate the presence of Dementors and protect living souls from them. Takes place in Harry's third year at Hogwarts.

Death's Visage by Black-Raven3

  • Recommended by: Navllyk, feral, Urbandshi
  • Crossover with: Hellsing
  • Status: Dead
  • Synopsis: After Harry's 5th birthday, his true powers are unleashed, powers so dark that Dumbledore felt the need to bind them. Fleeing the Dursleys just before his 11th birthday, he seeks refuge with his family's ancestral allies, the Hellsings. DARK.
  • Comments: Contains Ron bashing, Depressed!Harry and Slytherin!Harry, but thankfully avoids Draco in Leather Pants.

Even The Wizards Must Pay Their Due by Gamma Cavy (link)

  • Recommended by: Tiamat Dragon Queen
  • Crossover with: FullmetalAlchemist
  • Status: Complete
  • Synopsis: Attempting legilimency on Edward Elric was a supremely bad idea, as it got Truth's attention, and now Ed's taken Harry home with him and Al. But the wizards refuse to believe that Harry is lost to them, and continue to search for Harry and the alchemist who kidnapped him. This story is now complete. Evil Dumbledore, and Brotherhood 'verse for FMA
  • Comments: Ed's narrative adds dry humor to everything, beginning with his wondering if Petunia is a failed Horse Chimera, and continuing into the Give Mustang a Headache Game. The plot is well thought out, Truth is awesome, and clearly up to something. Dumbledore is not only a Magnificent Bastard, but a Manipulative Bastard. Harry gets a loving family with two older brothers, a loving mother who will teach him how to defend himself, a silent but loving father, and a plethora of honorary family in the form of Team Mustang. Gamma actually figured out how Fullmetal Alchemist could take place in the same world as Harry Potter without anyone knowing about Amestris and all the neighboring countries, and it has a spark of originality in a crossover that this troper hasn't seen since Laora's fic Penance. Bonus points for the fact that the Wizarding knew a little about Xerxes, although not as anything more than a myth, at least until Ed turns up, fitting the description of the golden people, AKA the Xerxesians.
    • I went into this story expecting the usual format for a Harry Potter crossover, Harry raised by someone else and wows the wizards with his alchemy, the usual. I suppose I should have known it was different from the title, but as it was I was pleasantly surprised to find out it wasn't.

Fictional by Dark Syaoran

  • Recommended by: Shadow AI, Unclouded TJ
  • Crossover with: Fate/stay night
  • Status: Dead
  • Synopsis: The dictionary defined fiction as thus: something feigned, invented, or imagined; a made-up story. The act of feigning, inventing, or imagining. Yes, Harry thought, this defined him nicely.

Find Me A White Knight Cloaked in Black by cwyscross

  • Recommended by: Pastykake, Robinton
  • Crossover with: Naruto.
  • Status: Dead
  • Synopsis: When the civilians need something made or fixed in a hurry, they all know to go to the green-eyed foreigner. So it stands to reason that, sooner or later, ninjas would come knocking as well. Insanity ensues—they're messing with a Marauder, after all. But mostly, Hiei just wishes they would all leave him alone.
  • Comments: Set at the start of the Naruto series and long after Voldemort for Harry.

Cerulean Silver vs Amber Gold by hikaranko

  • Recommended by: eagle108
  • Crossover with: Fullmetal Alchemist
  • Status: Dead
  • Pairing(s): Draco/Hermione
  • Synopsis: Edward Elric gets assigned babysitting Draco Malfoy, at the request of the British Ministry of Magic. While Ed considers the assignment stupid, having to spend an entire year undercover as a student at Hogwarts, there's a lot more than what he was told during briefing.
  • Comments: Excellently written, spot-on characterization, even with the deviations in the HP world. While the gradually built Draco/Hermione romance occurs in the background rather subtly to Ed's interactions with the HP cast as the main focus, it nonetheless has a strong and supportive impact in a whole to the story. Shades of Draco in Leather Pants is featured, but it's done quite tastefully. Ed here has a few "magic doesn't exist/magic breaks the laws of alchemy" moments but it's far and few in between, and he does comes to explanations that could work between both verses.
    • Has an AO3 link here, though only the first half of the story was uploaded.

From His Excerpts by Phoenyxx

  • Recommended by: Thriaemis, Ghingahn, Robinton
  • Crossover with: Naruto
  • Status: Dead
  • Synopsis: Kakashi Hatake and his excerpts of the wizarding world. Hogwarts, ministry politics, Mangekyou Sharingan and...sparking school spirit? "Don't take me as alien! I know your politics." The wizards shared a look. "Alien as foreigner. Here. The-saurus says."
  • Comments: A frankly hilarious crossover where Kakashi is hired to act as Hogwarts' mediator and "spark school spirit" aka teamwork. It isn't long before the entire school hates him, but damn it all if they're not working together! Well-written, in-character and hilarious. I can definitely recommend this one. Even incomplete it's a great read.

Game On! and its sequel,Game On! 2 0, by nordiamus

  • Recommended by: ShadowState
  • Status: Complete; Complete
  • Crossover with: Reborn! (2004) and Fullmetal Alchemist (2003)
  • Pairings: Kazami/Reborn
  • Synopsis: Game On!: Harriet Potter knew she shouldn't have picked those three Hallows... but she did, and now, she's immortal, and the gods have a proposition for her : help the heroes of other universe to save her mother's soul. And to help her, they'll give her a tool : the Gamer's Ability. First stop : the Mafia World.

The Girl Who Loved and its sequel, Violence Inherent in the System, by Darth Drafter

  • Recommended by: Chuckg, Looney Toons
  • Crossover with Sailor Moon and Ranma ½
  • Status: Complete
  • Pairings: Harry/Usagi, Ranma/Shampoo
  • Status: Complete; Complete
  • Synopsis: Upon receiving some very disturbing news during the summer after his fifth year, Harry does a panicked accidental-magic Apparition straight to China, and falls directly in a Jusenkyo spring...a spring which one Usagi Tsukino had accidentally drowned in the year before. Hilarity Ensues.
  • Warnings: Brief discussion of (but no actual) m-preg; mild lemon in Chapter 9 of Violence Inherent In The System; some chapters of The Girl Who Loved have off-screen lesbian encounters which get a fair amount of discussion on-screen.
  • Comments: This started out as a crack fic and then rapidly developed an actual plot, complete with both Heartwarming and Awesome Moments. It's far, far better than it sounds, and I highly recommend. Also contains perhaps the only non-annoying appearance of Chibi-Usa I can remember seeing anywhere.

Harry and the Pirates by Technomad

  • Recommended by: Eoppen
  • Crossover with: Black Lagoon
  • Status: Dormant
  • Synopsis: Harry Potter grew up in Roanapur, with his loving Aunt Petunia, his best friend/cousin Dudley, and the woman they all worked for, Balalaika! Until the day a mysterious visitor arrived with news that would change both boys' lives forever...
    • Comments: This story alternates between Hogwarts and Roanapur, and while there are a lot of changes, neither story overwhelms the other. Some of the boys' friends visit them at Roanapur, with unexpected results...
    • The story starts out decent enough I suppose. It takes a left turn at dropping everybody into Slytherin: Harry, Dudley, Ron, and Hermione. It starts to get absurd around Halloween though, what with Dudley firing an RPK machine gun and Harry lobbing 40mm grenades from an M-79 at the troll.

Harry Mewter by Alex Ultra

  • Recommended by: Schizo Technician, Doppelganger511, lindabhair, Giant Eye, Pastykake
  • Crossover with: Pokémon
  • Status: Complete
  • Synopsis: Late in his second year, Harry Potter takes an animagus potion. His animagus form is Mew. Hilarity Ensues as he discovers catnip, learns what his new form can do the hard way, and tries to find out what the hell he turns into, anyway. Gets a little more serious around the end of his fourth year.
  • Comments: Surprisingly well done, given how easy it would be to take this down the wrong road. Very little from Pokémon appears—no attack namesnote , no Poké Balls, nothing except animagus forms, without even any knowledge of what they are or do. Hilarious at times.
    • Doppelganger511: I second the recommendation. I usually loathe crossovers, but this one is fantastic. Definitely worth reading.

Harry Potter and the Digimon Frontier by Gemini Star01

  • Recommended by: Ananonymuscat, lindabhair
  • Crossover with Digimon Frontier.

  • Status: Complete
  • Synopsis: For five years, the kids of Frontier have been training as Japanese wizards. Now they've got the chance to study abroad, in England of all places. But there are some odd things happening. Hogwarts?
  • Comments: Don't let the title fool you, inspired by The Best Defense, this is one of the most thought-out crossovers you are likely to find, everyone is in character, and the plot makes perfect sense.

Harry Potter and the God of Death by Nesarna

  • Recommended by PeppermintWinds, Pastykake
  • Crossover with Bleach
  • Status: Dead
  • Synopsis: Getting recruited for another war wasn't quite what he had in mind when his father announced a family trip to England. But now that he's here, Kurosaki Ichigo finds himself pulled into a web of deception, government lies, and centuries-old conspiracies...

Harry Potter and the Not-Fatal-At-All Cultural Exchange Program by Pale Wolf

  • Recommended by: Gentlemens Dame 883
  • Crossover with: Fate/stay night
  • Status: Dead
  • Synopsis: A Holy Grail War is starting, but not as you think you know it. Seven Masters and their Servants converge on England to win the Grail. Mr. Potter throws his hat into the ring in an attempt to save Sirius Black. And since we're through the looking glass, watch out for the canon Nasuverse characters who aren't in the same place you might be expecting them.

Harry Potter and the Order of the Bleached Phoenix and Bleach and the Half Blood Prince by Eradona

  • Recommended by: kinglugia
  • Crossover with: Bleach
  • Status: Complete
  • Pairings: Ichigo/Rukia, Toshiro/Karin
  • Synopsis: Due to an old Friendship between two meddling old men, Ichigo Kurosaki and Company end up at Hogwarts. The mission: protect Harry Potter! Primarily Bleach Characters interacting with the Wizarding World. Rating changed to M to be safe.
  • Comments: The story isn't bad at first, but the Bleach characters quickly become cliched, particularly Ichigo and his mother, and it only gets worse as it goes on. It's quite sad, as the story is otherwise good. To give an example, Ichigo's mother is inserted into the same year as Harry's parents, with heavy amounts of Remember the New Guy?, in addition to apparently being obscenely wealthy, the heir/a descendant to all four founders, the smartest witch in her generation, a metamorphmagus, and had a close relationship with everyone in the Potter cast. Due to being his mother's son, Ichigo inherits them all.

Harry Potter and the Secret Link by Capricious Purple Clarity

  • Recommended by: QuatreWinner
  • Crossover with Mobile Suit Gundam Wing
  • Status: Complete
  • Synopsis: Watch as Duo chips away at the very foundation of Hogwarts as he breaks down House walls, befriends Gryffs and Slyths alike, mugglfies Malfoys, and flushes cherry bombs down school toilets.
  • Comments: This fic is simply too much to adequately summarize without spoiling anything. Duo is completely in-character throughout this whole thing, and it's his character that "mugglefies Malfoys" et al. An alternate summary is "Duo Maxwell's unique brand of luck strikes again. Ron wants to keep him, even if he does have some weird obsession with flirting with Snape. Snape just wants to know where to bury the body." It's just... everyone's in character. The plot makes sense. I'm not really doing it justice, really. Just read it and see what I mean. It also has a sequel, Harry Potter and the Forgotten Heirs.
  • Warnings: Slash! There is the aforementioned Duo/Snape flirting, as well as 1x2, 3x4, and Harry/Draco.

Harry Potter and the Super Saiyan Wizard and its sequel, Gohan Son and the Prizoner of Axkaban by Spring-heeled Drake

  • Recommended by: autopanda
  • Crossover with: Dragon Ball Z
  • Status: Complete; Dormant
  • Synopsis: Gohan knew he wasn't a normal person, but what about a normal wizard? Gohan's invited to Hogwarts in the gang's second year. What will happen when the boy who defeated Cell meets the boy who defeated Voldemort?
  • Comments: Both are EXTREMELY well-written stories. Better than you would think. They are set after the Cell games and one of the movies.

Harry Potter and the Ultimate Force by DarkKing666

  • Recommended by: Jonathan SCE
  • Crossover with: Ah! My Goddess
  • Status: Complete
  • Synopsis: When an alarm go off in the Prophecies section of Heaven warning that a prophecy has gone astray, it is up to the three goddesses, and Keiichi, to fix it. Starting with them all moving to England and adopting a certain 8-year-old boy...
  • Comments: Set in 1989, two years before Harry goes to Hogwarts. However, the canon of Ah! My Goddess is current to chapter 278, published in the fall of 2011.Also features a manipulative Dumbledore trying to get Harry back.

Harry Potter and the Wrath of Jashin by MegaKiraraLover

  • Recommended by: phoenixyfriend and Dexterfans1s2s 7
  • Crossover with: Naruto
  • Status:
  • Synopsis: And after his defeat, Hidan is confident Jashin will come rescue him and make the world a better place...too bad no one would have believed him if he were to tell. More importantly, too bad he's right! Not!Romance!Centered Super!Godlike!Harry!is!Jashin. Funny and surprising. Not all of Akatsuki come back to life!

Itachi and the Prisoner of Azkaban by Mistress Dragonflame

  • Recommended by: melloncollie
  • Crossover with: Naruto
  • Status: Complete
  • Synopsis: An Itachi-centric crossover with the Potterverse. While an ANBU captain, Itachi is called away to Britain on a mission as Harry Potter's covert bodyguard. Hilarity Ensues.
  • Comments: This fic could use a bit of polishing, but if you can overlook the numerous grammar and spelling errors there are a few genuinely touching moments brought on by the "what-could-have-been" aspect, and the sharp contrast between the relatively Lighter and Softer Potterverse and the violent, dystopic Narutoverse. However, most of the more exciting conflict seems to center around Itachi and the Narutoverse side of the crossover, and the conflicts on the Potterverse side are solved with relative ease. Most definitely a Fix Fic.

In Search of a Future by Sheankelor

  • Recommended by: fruitstripegum
  • Crossover with: Ah! My Goddess
  • Status: Complete
  • Synopsis: While patrolling for rogue dementors for the Order, Snape accidentally calls a wrong number and gets the Goddess Help Line. What will his one wish be?

Master Of Death, What A Joke by Yuval25

  • Recommended by: feral
  • Crossover with: Death Note
  • Status: Complete
  • Synopsis: Harry finally discovers who's been killing all of those criminals. Curse the muggle who did this to hell for giving him so much paperwork.

Herwald von Einzbern and the Philosophers Stone by kyugan

  • Recommended by: Xamusel
  • Crossover with: Fate/stay night,
  • Status: Complete
  • Synopsis: "The 5th Heaven's Feel has been averted, with no apparent victor, but for Herwald von Einzbern, recently turned eleven, a whole new adventure is about to begin in a world he left behind ten years prior."
  • Comments: Kiritsugu adopts Harry shortly after he finishes a job that involves killing a Sealing Designate, Harry gets renamed Herwald, he becomes one of Ilya's little siblings (when Shirou enters the picture anyway), and he becomes an Alchemist that takes part in the Fifth Heaven's Feel... and later enrolls in Hogwarts because of his birth parents. The story is complete, and has a sequel up (missing only the epilogue), set during Harry's second year (link here), which shows that the author knows what he's talking about... even though Herwald is Slytherin in this series.

Crosswinds of Fate by WayFarer2000

  • Also includes Crosswinds of Fate Side Stories
  • Recommended by Popthepuff, Kickerson, Pastykake
  • Crossover with Fate/stay night
  • Status: Dead
  • Synopsis: "You should think of this as an opportunity to learn about a completely different method of applied thaumaturgy," Zelretch explained. He then sighed and lamented, "For shame, to be cursed with such an ungrateful apprentice..."
  • Comments: Crossovers between two magic world based universes tend to end in one getting bashed or using the other to turn into a shameless character destruction self-insert fic, particularly more so for many Fate and Harry Potter crossovers. Here, however, is something different. The characters are basically the same, set during the Order of the Phoenix for Harry Potter and 10 years after an end that is somewhat based off the UBW good end for denizens of the Fate 'verse. The story is well written and the characters aren't turned into something unrecognizable. There are a few bits that might seem off from the canon of either 'verse, naturally, but these don't do anything to demerit the story.
    • Furthermore, despite the fic not being a humour or a parody, the author can and has written in plenty of hilarious moments throughout the narrative.
    • Should be noted it's less of an action/adventure and more of an academic study/magical comparison fic so far, though that's no demerit to the story at all, which is still a good read. Nevertheless, some might find it a little odd that as far as plot development goes it hasn't progressed too much in its nearly 100,000 words at this point.

Mina Aino: Witch in Training by hersheyman

  • Crossover with Sailor Moon
  • Recommended by uncannybeetle
  • Status: Complete, with two sequels
  • Synopsis: Minako, aka Sailor Venus, is a third year at Hogwarts, and in Hufflepuff House (that's different). An encounter with the dementors stirs memories of a past life. She must balance investigations into her past with school work, Quidditch, and the looming threat of Sirius Black Minako/Harry in the sequels
  • Comments: One of the best flowing crossover stories out there. Events follow naturally. Also a good way to see the story of Harry Potter from an outsider's point of view.

My Father Isshin by Zsugami Alba

  • Recommended by Gemini 24
  • Crossover with Bleach
  • Status: Dormant (last updated October 2018)
  • Synopsis: Harry grew up in the Kurosaki household. How will Snape react to meeting Isshin Kurosaki? How will Magical Britain? Adopted from 9foxgrl.
  • Tag: Humour.

Names and Other Unnecessary Things by Mirthful-Malady

  • Crossover with Death Note
  • Recommended by feral
  • Status: Updated February 2014
  • Synopsis: In which Harry is an extraordinarily intelligent child who has an intense dislike for boredom, wizards were never meant to be Horcruxes, a certain god of death has an almost lecherous obsession with apples and everyone has their own agenda. AU events for both universes.
  • Tags: Crossover, Wammy's House, Dark(ish)!Smart!Harry eventual godlike!Harry, planned Slash, Het, and Polyamory

New Power by Maverick14th

  • Recommended by Gemini 24
  • Crossover with Bleach
  • Status: Dead (last updated May 2013)
  • Synopsis: Ichigo has lost his shinigami powers but merged with his hollow? How has he changed? And why is there an old man who wants to teach him magic at his house? What is going to happen to Ichigo now? OOC Ichigo.

The Wizard of the Kaleidoscope by OnTheImportanceOfLungs

  • Recommended by: templar627, Wasted In Jackson
  • Status: Complete
  • Crossover with: Naruto
  • Synopsis : What does it take to destroy something completely? Some would be fine with eradicating its soul. Others would argue that you must erase even the concept of the object from existence. AU with a notoriously complex Magic system.
  • Comments: This fan fic poses the idea that harry has a sharingan, and because of that changes the entire story and makes everything more badass Harry goes out fights and defeats voldermort with a sword in his first year then goes out collecting rare swords in his second year then in his fourth year joins a mage dueling contests and defeats dumbledore
    • Reads nicely, as can often be expected from the DLP crowd, but it's also targeted PURELY for a young male audience and despite being a young male myself, bits here and there made me eye-roll on multiple occasions. All in all, it was enjoyable and I will give this rec a tentative seconding. That being said, does this really belong in For Want of a Nail? Most of canon is essentially thrown out the window here and it pulls elements directly from Naruto lore. Maybe general AU recs?

Utter Lunacy by InsaneScriptist

  • Recommended by : Dame-Amaryllis
  • Crossover with: Reborn! (2004)
  • Status: Dead (last updated May 2017)
  • Synopsis: When the white demon with angel wings took over Magical Britain few were left still fighting. Luna is captured only to later win her own private war. What it means for the future is anyone's guess.
  • Notes: Alternate link.

Bizarre School of Witchcraft and Wizardry by The Real Evan SG

  • Crossover with: Jojos Bizarre Adventure
  • Recommended by: Agent_B
  • Status: Dead (last updated July 2017)
  • Synopsis: A power-granting bow and arrow, Stands, and immovable objects... And here Harry Potter thought his life was crazy enough even without being related to some dudes with stars on the backs of their necks. Being born into the bloodline of the most bizarre family on the planet, however, meant that his life was destined for insanity. He just didn't know it yet.

snipers solve 99% of all problems by silentwalrus

  • Recommended by: Dame-Amaryllis
  • Status: Ongoing
  • Crossover with: Fullmetal Alchemist
  • Synopsis: “Are you fucking kidding me,” Ed demands. “The wizards?” Ed had thought, after the whole Promised Day, homunculus, entire country harvested for alchemical batteries thing, the batshit quotient of his life would have settled down some. He really ought to have topped out the meter with that one. But no. The bullshit is just getting started.

Witches Wizards Shadows and Souls by Mei1105''

  • Recommended by Lermis
  • Status: complete
  • Crossover with: Yu-Gi-Oh!
  • Synopsis: A new power is terrorising the wizards. Voldemort now wields a magic ten thousand years old. And there's only a few people in the world who know how to beat it. Meanwhile, a failed attack in Domino City brings some unwanted attention.
  • Notes: An unusual crossover in that instead of Voldemort chasing the Millennium Items, instead he gets involved with Orichalchos magic. This fic also has a sequel, Magic Monsters Dominions and Destiny, which is also complete.

Teacher by romantiscue.

  • Recommended by Pastykake
  • Crossover with Naruto
  • Status: Dead (last updated July 2012)
  • Synopsis: Harry never wanted to be a teacher, especially not for a much too hyperactive neon-orange brat of a boy, but a favor promised is a favor kept. Features a quasi-super-but-reluctant!Harry and a motivated-but-not-super!Naruto.
  • Comments: Fusion Fic - there's a barrier separating the Five Great Nations from the rest of the world, and only a few people on either side know of the other side. Set years after the war for Harry and just before/at the start of the series for Naruto.

Trading Yesterday by Shadowblayze

  • Recommended by : Dame-Amaryllis
  • Crossover with: Reborn! (2004)
  • Status: Complete
  • Synopsis: Kawahira finds someone else to be the Sky Arcobaleno in place of Aria, and it changes everything.
  • Notes: Has a sequel, Stealing Tomorrow (which hasn't been updated since November 2016).

Uchiha Fukurou by ToBetasered

  • Recommended by Magic Kirby, Robinton
  • Status: Dead (last updated May 2012)
  • Crossover with Naruto
  • Synopsis: Uchiha Fukurou was conceived when at the same moment, in another universe, Old Man Potter died.
  • Comments: A reincarnation styled crossover. Harry, being formerly the Minister of Magic, definitely picked up a good deal of common sense and political knowledge which allow him to thrive in his "next great adventure."

Uchiha of Ravenclaw by Hebisama

  • Recommended by: KyuubiNoPuma
  • Crossover with: Naruto
  • Status: Complete
  • Synopsis: This is a story of the normal students in Hogwarts School of Witchcraft and Wizardry, or as normal as you can be with a kunoichi in your midst. An Uchiha fOC student at Hogwarts. Saeko is older than HP so Harry will be in the picture from her fourth year up. Mainly OCs, a bit of humor, bit of adventure, bit of romance (Femslash so just you know).
  • Comments: Rated M, Features explicit Yuri, Hints of Slash and Het, Adventure and Humor, Features OCs
Uchiha Potter By Choska Kurenai
  • Crossover with Naruto
  • Recommended by: autopanda, feral
  • Status: Dead (last updated June 2013)
  • Synopsis: After Voldemort's fall, Harry was raised as an Uchiha with his cousins Sasuke and Itachi, unaware of his other heritage. How will Hogwarts deal with this kunai-weilding, Ass-kicking Uchiha Harry Potter? -Beta revision ongoing-
  • Comments: A very well written story where Harry is raised by the Uchiha and has all the problems of the massacre, except he shares them with Sasuke.

Uzumaki Harry by Shadow Crystal Mage

  • Recommended by feral
  • Crossover with Naruto
  • Status: Last updated 04-27-12
  • Pairings: Harry/Moaning Myrtle, Sasuke/Sakura, and Naruto/Hinata
  • Synopsis: Uzumaki Harry is the adopted brother of Naruto and Sasuke, under the guardianship of Jiraiya. Anko is his sensei. He edits 'Icha Icha'. Can you picture how messed up this is going to be?

The Next Great Adventure by TsukiakariNoMichi

  • Recommended by Gemini 24
  • Crossover with Bleach
  • Status: Updated in 2012
  • Synopsis: When a British Shinigami named James Potter informs the Gotei-13 that Aizen is still alive, they must send their finest to eliminate the mastermind. Somewhere along the way, their path crosses with wizards, and they find the true extent of Aizen's evil.

Of Darkness And Light by Takei Daloui

  • Recommended by Gemini 24
  • Crossover with Bleach
  • Status: Dead (last updated August 2013)
  • Synopsis: Even in the Wizarding World, there exists the supernatural. Soul Reapers, classified as the darkest creatures in the world, and their counter part, the holy Quincy. But on the day of Voldemort's defeat, they vanished. Ten years later, they are finally returning. And this time, the wheels of fate are moving with them. The only thing left now in doubt is how it will all end.
  • Tags: AU, Fusion Universes.

Of Gods And Men by shadowphantomness

Invert by Marz 1

  • Recommended by Comartemis, Rogue 7, Fenro
  • Status: Complete
  • Crossover with Fullmetal Alchemist
  • Synopsis: While investigating a bizarre alchemical structure, the Elric brothers get pulled into the Potterverse early on in an AU version of Deathly Hallows. In the interest of finding a way home, Ed lends his talents to the Horcrux hunt while Al finds ways to keep himself busy at Hogwarts. Better than it sounds.
  • Comments: This was the fic that originally got me interested in FMA. It doesn't measure up to fics like Harry Potter and the Nightmares of Future Past or Dumbledore's Army and the Year of Darkness, but it's still an entertaining read. Seems to be a deadfic but the first half of the story is complete enough to enjoy as a stand-alone fic.
    • Rogue 7: Amusing and well-written, though, as stated above, not one of the best. Worth reading simply for how in-character Ed is.

The Ninja Wizards saga by ladylisse

  • Crossover with Naruto.
  • Recommended by: Ladysugarquill
  • Status: Complete (the one-shots are. I couldn't reach the ficlets.)
  • Synopsis: Two one-shots ( Three Good Reasons and Home Front ) and eight ficlets (so far), putting the Harry Potter world inside the Narutoverse. It doesn't have any real plot besides worldbuilding and character study, but it is absolutely fantastic. Snapshots of three young shinobi. In another time and place, this would be magic.
  • Tags: Contains spoilers for Harry Poter up to HBP, and some for Naruto.

Surpassing the Father by Nenagh 24

  • Crossover with Chobits
  • Recommended by: fruitstripegum
  • Status: Complete
  • Synopsis: Zima, a highly advanced persocom, is a Child of Prophesy, but what happens when Dumbledore gets the wrong idea from this? A Zima-is-Harry story. No knowledge of Chobits needed. Harry Potter/Chobits crossover. Canon Chobits Pairings.

Penance by Laora

  • Crossover with Fullmetal Alchemist
  • Recommended by: Purple Queen 15
  • Status: Complete
  • Synopsis: During the Promised Day, Ed and Al end up pulled through the Gate and into the Wizarding World, shortly before the events of Order of the Phoenix. Conflicts between magic and alchemical science arise as Ed and Al try to figure out how to get home, Harry and friends take on the war against Voldemort, and all must face an even greater evil than they can imagine. Ed and Al were not the only ones to cross the Gate... Story is complete.
  • Comments: A very well-written crossover, characterization stays close to canon and has a great plot. Spoilers for anything past manga chapter 105 or Order of the Phoenix.

Swords and Sorcery by Susanoh 13

  • Recommended by Y Ddraig Goch 94
  • Status: Active
  • Crossover with Fate/stay night
  • Synopsis: Where Shirou gets tossed into a weird amalgamation of the World of Harry Potter mixed with some familiar faces of the Fate/Stay Night universe. Expect chaos, hi-jinks, and the odd sword.
  • Comments: While not quite a Fusion Fic, Susanoh 13 does really well in including elements of the Fate/Stay Night franchise into the wider Harry Potter mythos. Well worth the read, especially if one takes the time to read the apocrypha this story has generated.
    • Also has a TV Tropes page Here!

One Tin Soldier by GenkaiFan

  • Recommend by: G 33 K_G1RL_4-3V3R
  • Status: Completed
  • Synopsis: What would happen if Ichigo talked Muramasa into living and promised to find a better master? What if that that new master was Harry Potter? Wait how did an English Wizard meet an Eastern Soul Reaper? Harry/Muramasa pairing, not slash. AU Set in the Zanpakuto Arc
  • Pairing(s): Harry/Muramasa
  • Tags: hurt/comfort, friendship

No Need for Harry

  • Recommended by Gamma Cavy.
  • Status: Complete
  • Crossover with Tenchi Muyo! Ryo-Ohki
  • Summary: The power the Dark Lord Knows Not isn't love, its the Light Hawk Wings. when Harry activates them in the graveyard, Washu's scanners notice. Chaos follows. By the time Harry comes back to Hogwarts he has an adoptive brother named Tenchi, is friends with the entire cast, knows how to use the Light Hawk Wings, has learned how to use a sword from Yosho, and was given a spaceship for his birthday, courtesy of Washu. Awesomeness Ensues.

Harry Potter and the Master's Ball by Mr Chaos

Nanoha Takamachi and the School of Witchcraft and its sequel Nanoha Takamachi and the Wizarding World by Ryvaken Lucius Tadrya

  • Recommended by Chaosjunction, Dame-Amaryllis
  • Crossover with Lyrical Nanoha
  • Status: Complete with sequel dead (last updatd Octobr 2015)
  • Synopsis: When former TSAB Admiral Gil Graham is attacked by strange mages with wooden sticks, Takamachi Nanoha goes to help and finds a whole new world.
  • Comments: While the general outline of the story is nothing new (X character goes to Hogwarts alongside the Trio), this fic is written with a rarely seen deftness and sensitivity. Potterverse mages are not written as hopeless incompetents compared to Nanohaverse mages, but as being slightly behind the times, with their own valuable contributions. Characters stay in character (no bashing here!) and issues are handled thoughtfully. All in all, a wonderful fic.

Sailor Moon H by TheElephantInThePrideParade

  • Recommended by: Dame-Amaryllis
  • Crossover with: Sailor Moon
  • Status: Ongoing
  • Synopsis:
    • Order of the Phoenix: Mamoru's star seed is not returned to Tokyo at the end of Sailor Stars, instead, he was reincarnated in Wizarding Britain. The scouts must enroll at Hogwarts to find him. Once there, they become caught up in the beginnings of the Second Wizarding War, and in the crosshairs of a certain immortality-obsessed Dark Lord. The Missing Prince will soon be the least of their problems. (Complete)
    • The Half-Blood Prince: Mamoru's identity is still a mystery, but as the Second Wizarding War picks up, the scouts face larger problems than one missing Prince. As they continue on in the Wizarding World as students, Order Members, and Professors, they will see the conflict with Voldemort escalate dramatically. And to round things off, Chibiusa has decided she's long overdue for a magical education. And as if that weren't complication enough - she won't be the only time traveler being put under the sorting hat. (Complete)
    • The Deathly Hallows: The Hogwarts Golden Trio is on the run but for the sake of the students some of the Sailors still return to Hogwarts. Others are in the Order an one is trapped amongst the enemy. Now, with the Senshi scattered across the warzone that is Wizarding Britain, the Sailors and their allies will have to fight with everything they have to stop the greatest Dark Wizard in history. (Upcoming)

Old Soul Reborn by Glaux Bryonia

  • Recommended by: 1eragon33
  • crossover with: Bleach
  • Status: Dead (last updated March 2017)
  • Synopsis: The process of reincarnation isn't perfect, especially when it comes to the reincarnation of a soul that was very old and powerful during its previous life. Harry finds this out in an unusual way.
  • comments: one of the best reincarnation crosses ever. for one his previous life's memories may be there but he is not a carbon copy of Ukitake, he is still Harry. Two Sougyo no Kotowari is super cute and loving. There the attention to the harry potter universe is amazing as well as the new things the author adds like wand spirits, speaking of them the word awesome doesn't even cover harry's wand spirit, Manjushage.

There May Be Some Collateral Damage by metisket

  • Recommended by: Ivaryna, Robinton, Ghingahn, Dame-Amaryllis
  • Crossover with: Bleach
  • Status: Complete
  • Synopsis: Ichigo’s been ordered to go undercover at a magic school to bodyguard a kid named Harry Potter, and this would be fine, except that he’s about as good at bodyguarding as he is at magic. And he considers it a good day, magic-wise, if he hasn’t set anything on fire.
  • Comments: Set in Harry's fifth year, it's basically what happens when you unleash Ichigo and all his destructive tendencies onto an unsuspecting Hogwarts, and it's hilarious.

Dark Waltz by SethMaxwell06

  • Recommended by fruitstripegum
  • Status: Dead
  • Crossover with Bleach
  • Summary: Harry is willing to do anything to protect his war-torn family, even giving up his freedom and becoming a weapon. Now serving under Aizen, Harry must learn to adapt to his new surroundings, avoid the Espada out for his blood and make sense of his cold, silent guard.

The Three Kings: Hunt by AlcatrazOutpatient

  • Recommended by: dragomira
  • Status: Complete
  • Crossover with Yu-Gi-Oh!
  • Synopsis: To the Wizarding community, Godric Gryffindor, Helga Hufflepuff, Rowena Ravenclaw, and Salazar Slytherin are considered to be the greatest witches and wizards of their age. To that of the Mage society, they are known as the instigators of the largest genocide in recorded history. Rule 65!Atem, bisexual polyamorous relationship, massive AU, warnings inside
  • Comments: a realistic take on what would really happen if the hp world with its pureblood supremacy/ bigotry had to deal with different types of magic-users. don't be put off by the bisexual polyamorous relationship warning; it's barely part of the story (which is 43k+ words already). It does contain mature content since it portrays child abuse, murder and mentions of genocide; but this merely makes the story more riveting. I highly recommend it because it provides a unique perspective on the hp world as well as the Department of Mysteries (and what it does) and fleshes out certain characters (Rex Raptor, Weevil Underwood, Keith Howard etc.). Even someone unfamiliar with yu-gi-oh should be able to follow the story.

Wizard and Zanpakuto by Oreramar

  • Recommended by sgtangua_8, Pastykake
  • Crossover with Bleach
  • Status: Dead, with synopsis of remaining plot given
  • Synopsis: While fighting Aizen, Ichigo makes a sacrifice, becoming a zanpakuto. When he survived the killing curse, Harry's soul was disconnected from his body, becoming a shinigami. Every sword needs a wielder. Every warrior needs a sword.
  • ''Comments": An AU of the end of The chamber of secrets and of The Prisoner of Azkaban. Very well written, has some suspenseful and also fluffy moments.

Water Aerobics for the Aquaphobic by Minnionette (link)

  • Recommended by RealityPhobia, gamerex27
  • Status: Dead (last updated December 2012)
  • Crossover with Ranma ½.
  • Synopsis: In retrospect, Harry should've known that Umbridge's field trip to the ancient springs of Jusenkyo was an unmitigated disaster waiting to happen. Having fallen into the Springs of the Drowned Emo and Drowned Emu, Harry supposes he's luckier than, say, Snape (Spring of the Drowned Unicorn) or Ginny (Springs of the Drowned Pig and Homing Pigeon), but there are more problems in the upcoming year than just curses that have no known cure: Voldemort takes advantage of his own cursed form to infiltrate Hogwarts as Luna's new pet bunny and actively plots the demise of, well, everyone. And there's really no way to explain Lucius Malfoy, the benevolent Buddhist monk. (AU Harry Potter and the Order of the Phoenix; Ranma 1/2 crossover) Features many minor characters with personalities – especially Daphne Greengrass and Blaise Zabini.
  • Comments: Minnionette does a fantastic job of taking an element of one series and fusing it with another near seamlessly. It's a lot like the above Harry Mewter in that only one Ranma 1/2 character shows up and only for one chapter, so no real knowledge of the series is needed. Minnionette has a true gift for character building, and thouroghly explores everyone's personalities and how they would deal with the bizarre situation they find themselves in. And it's all in character, which, to me, means the most. It's also guaranteed to have your sides splitting by the end of the first chapter.

Hiding Out at Cross Academy by The Celestial Alchemist

  • Recommended by: FandomManiac2401
  • Crossover with: Vampire Knight
  • Status: Dead (last updated March 2017)
  • Synopsis: Tsubaki Evans was a shy and innocent Day Class student who was friends with Yuki Cross. But that impression changed when people from the magical community in England invaded Cross Academy, looking for a girl called Hallie Potter, and Tsubaki stepped up to attack.
  • Pairings: Kaname/Tsubaki, Yuki/Zero, Luna/Takuma

Professor Takamachi by Rick Dias

  • Crossover with Lyrical Nanoha.
  • Recommended by EpicFightingTroper, ameliette
  • Status: Complete
  • Synopsis: Dumbledore tries to find a new Defense Professor, he gets a certain White Devil.
  • Comments: A very fun read, which mostly consists of Nanoha scaring the crap out of everyone, all the students getting more badass through superior training techniques and Umbridge getting her just desserts at the end. Also, Harry joins the TSAB at the end. If you think that sounds like a good time (or you're a fan of Harry Potter and/or Nanoha), than there is no excuse for not checking this out.

Thrice-Glorious Victory by I Am Not Creative Enough

  • Recommended by: Eva Unit 01, Unclouded TJ
  • Status: Dead (last updated July 2014)
  • Fusion/Crossover with: Nasuverse, primarily the Fate franchise.
  • Synopsis: Harry Potter thought that for once, with the organization behind the Holy Grail Tournament, he would be safe for a year, able to relax... of course, if you know Harry, you know it's not that easy.
  • Pairing(s):
  • Tags: Fusion Fic
  • Comments: Basically, the Triwizard Tournament is replaced with the Holy Grail War, a tradition initiated long ago by the Four Founders themselves. Seven Witches/Wizards and their Servants - Epic Heroes of myth and legend - shall fight to the death within the halls and general area of Hogwarts, all for a shot at the greatest prize of all: The Holy Grail, which can grant the victor any wish of their choosing.

Matou Shinji and the Philosopher's Stone by AlfheimWanderer (and its four sequels)

  • Recommended by Sallera, Green Chaos, The Giant Rock
  • Status: Complete (sequels ongoing)
  • Crossover with: Fate/stay night
  • Synopsis: Shinji gets a Hogwarts letter before his resentment has time to destroy him, and jumps at the chance of practicing even a 'lesser' craft as long as it means he isn't worthless. Away from his family, he might have the chance to become what he always wished for, but the moonlit world has its own interests at his new school, and discarded heir or not, he couldn't escape the politics of the world he grew up in even if he wished to. (First year hits the high points of the canon plot with a few additions, then events diverge significantly from second year on.)
  • Pairings: Harry/Daphne, Shinji/Luna
  • Comments: On the first year, a still-somewhat innocent Shinji contacts several people who significantly reshape his worldview and begins working out the hidden truth of the relations between the Wizarding World and the Clock Tower, though for the most part, it hits most of the high canon points. And then, at the climax of the second year, a frighteningly competent Gilderoy Lockhart says the one word that completely shatters everything.
    Gilderoy Lockhart: Zabaniya!

Not Your Kind of People byQuatermass

  • Crossover with: The Rising of the Shield Hero
  • Recommended by: Victorio M Wolff-Haddock
  • Status: Ongoing
  • Synopsis: A ritual by Idol Rabier gone bad sends Raphtalia back in time and across worlds. Now, nine years later, while searching for a way home, she is introduced to Harry Potter by a mutual friend. But even as their friendship grows, Raphtalia's past lingers. Summoned to Melromarc as the Shield Hero with Raphtalia by his side, can Harry trust anyone in a country that hates his guts?
  • Pairings: Harry/Raphtalia, Hermione/Naofumi

Against the Odds by PolarPanther

  • Crossover with: Naruto
  • Recommended by: Victorio M Wolff-Haddock
  • Status: Hiatus
  • Synopsis: Magic was not the only secret hidden in Harry's ancestry. With nothing more than an old clue and a desperate wish, Harry travels through unfamiliar places and braves unknown danger to find his family.

     Comic Books 

Ace of Spades by leontina (Leontina)

Afraid of The Darkness by Captain Emily

  • Recommended by: feral
  • Status: Complete
  • Crossover with: The Darkness
  • Synopsis: Unable to breach the blood wards on Privet Drive, Voldemort sends Lucius to hire someone who can.
  • Tags: Humor, One-shot

Hellblazer: Hogwarts by Camwyn

  • Recommended by Roo, Looney Toons
  • Crossover with Hellblazer
  • Status: Dead
  • Synopsis: After interfering in a magical fight (armed with a half-brick in a sock), John Constantine finds himself in another world; a world where magic works differently, demons can't be summoned up, and children go to a magical school called Hogwarts. Luckily, he manages to strike a bargain with Albus Dumbledore, who has the following offer: He'll do everything in his power to help Constantine get back to his own world, if Constantine in the meantime takes the job as Defense against the Dark Arts teacher at Hogwarts.
  • Comments: The story was written before Half-Blood Prince, and unfortunately, seems to be a Dead Fic... but the ten chapters that are up are really well done, with many clashes between Constantine and the HP world. Harry himself doesn't show up until chapter ten, but Constantine's attempts at figuring out Hogwarts and his interactions with the Hogwarts staff (and ghosts!) are thoroughly entertaining. Possibly the highlight of the story is the friendship that grows between Hagrid and Constantine — and Camwyn even gets Hagrid's accent right, a rarity in fanfic.

Path of Decision by lulu42 (contains mild violence.)

  • Recommended by Fenro, Unclouded TJ
  • Status: Complete
  • Crossover with The Sandman.
  • Synopsis: Voldemort is in power, but the Wizarding World fights back. Harry Potter, Master of Death, is faced with a choice: move forward or change everything?
  • Comments: The plot is very intriguing, but there are a lot of spelling and grammar mistakes. This story takes place during Harry's Hogwarts years.

Sins of the Father by Lord Caelum

  • Recommended by feral
  • Crossover with The Darkness
  • Status: September 2012
  • Synopsis: What if The Darkness had to intervene to save Harry Potter's life on his eleventh birthday? What if, unlike every other Darkness Host to have ever lived, he actually tries to be good?

Thinking In Little Green Boxes, by DireSquirrel

  • Recommended by Comartemis, Shadow AI, feral, Robinton
  • Status: Dead (last updated September 2012)
  • Crossover with Deadpool.
  • Synopsis: On the night baby Harry was supposed to go to the Dursleys, someone screwed up the addresses and dropped him off at 4 Privy Drive, currently inhabited by one Wade Wilson. Ten years later, Harry gets his Hogwarts letter.
    “Don’t worry, this can’t possibly be as bad as the time he stole Dr. Doom’s credit card and bought everything under the sun.”
    In Latveria, a certain monarch was looking at his visa bill.
  • Comments: Yes. Harry Potter as raised by the Merc With a Mouth himself. The world will never be sane again.

The Wizard of Gotham by Skysaber

  • Recommended by feral
  • Status: Dead
  • Crossover with Batman.
  • Synopsis: After failing to cheat Bruce Wayne on a deal for drills, Vernon Dursley takes his frustrations out on Harry Potter, by abandoning him in Gotham City.

Mutant Storm by Bobmin 356 (Link here)

  • Recommended by: Milarqui, Looney Toons
  • Status: Complete
  • Crossover with the X-Men.
  • Pairings: Harry/Ginny, Scott/Jean, Ron/Luna, Neville/Hermione
  • Synopsis: After Dumbledore tells him the Prophecy, an angry Harry explodes (figuratively) and discovers he has a strange power, combining intangibility, invisibility, and teleportation. Going back to the Dursleys proves to be both a hindrance due to his depression and a chance to practice with his new powers. On the other side of the Atlantic, two powerful telepaths by the name of Charles Xavier and Jean Summers detect the appearance of a very powerful mutant in England... and Charles Xavier realises that he has to come clean on Jean's past.
  • Comments: The first thing the wonderful duo did was to tell readers the fanfic was Harry/Ginny. At first, it explores how Harry reacts to his new powers and how this affects the X-Men as Jean Summers discovers that she is Lily Evans' twin sister, adopts her nephew Harry and takes him to the X-Mansion. It then goes forward from that, passing over things such as the revelation of his mutant powers to the Order of the Phoenix, his going back to Hogwarts and how Voldemort plans to include the mutant community in the British Magical War. It includes a believable Manipulative!Dumbledore, Snape working more for Voldemort than Dumbledore (not on his own volition), a great (and funny) Wolverine, and, finally, a good development of a relationship between Harry and Ginny.
    • Looney Toons: Seconded. It's not great literature and we get a fair amount of Ron-bashing, which is a typical feature of Bobmin's work, but it's still a fun read.
  • Honestly this crossover is less than a fun read. The author has just about everybody extremely OOC. The X-Men have mysteriously disregarded their code of killing unless absolutely necessary. Harry is replaced with a hate driven psychopath.

CyberTech: War of the Worlds and the sequel CyberTech: Open Worlds by Myrddin Le Fay. Currently being rewritten as Armoured Skill.

  • Recommended by Omeganian
  • Crossover with Marvel Universe. The sequel adds the DC Universe... with its own Harry Potter (at the beginning of Book 5).
  • Status: Complete, sequel is dormant
  • Synopsis: Harry's sister is The Girl Who Lived. She is raised by their parents. Harry is sent to the Dursleys. He never goes to Hogwarts; instead, at the age of 13, he tries to run away. Once the police gets involved, the Dursley adults are sent to jail. Harry is raised by a loving family. Now, at 23, he owns a company to rival Stark International. And he is very displeased that some group of guys is murdering entire villages. Or that another does nothing about it.
  • Comments: A lot of Dumbledore bashing. A bit of James and Lily bashing. For once, an unspoiled and talented Potter raised Child-Who-Lived. And a Voldemort who actually knows it is unwise to attack the Muggles (at least at first).

Harry Potter And The Invincible Technomage, by Clell 65619

  • Recommended by Chuckg, Looney Toons, Unclouded TJ, Comartemis, feral
  • Status: Dormant (last updated August 2018)
  • Crossover with: Marvel Universe.
  • Synopsis: A party of executives from Grunnings and their families are given a facilities tour of a factory as part of a joint project with an American firm. When the Dursleys die in an explosion, accidental magic lets Harry be the sole survivor. And when a young child shows visible superpowers on company property, the owner is called in, leading eventually to an 11-year-old Harry Stark attending Hogwarts...
  • Comments: The major appeal of this fic is seeing things go right for Harry without him being a God-Mode Sue. He has a loving father and virtually the entire Avengers for his extended family. He's self-confident and still heroic (he is in fact 'Pulse', the second auxiliary member of Power Pack alongside his best friend Franklin 'Tattletale' Richards). He has access to Dr. Strange and Agatha Harkness as magic tutors. So why is he still attending Hogwarts? Because Madame Web has told him (and only him) of the prophecy, and, well, a hero has to do what a hero has to do. And so a young Harry Potter whose "saving people thing" is now professional has arrived on-scene. And it was a Heartwarming Moment when you realized that the first person Harry helped save was Tony: adopting a small child in 1986 meant that Tony felt compelled to live a slightly more responsible lifestyle, so he never descended into alcoholism, and never lost his company the first time. And the Funny Moment when you find out what Tony always does to Harry's school projects... well, read for yourself. Other highlights include Tony forming an informal Hogwarts Parents Association, Harry introducing the student body to (magically-shielded) CD players and cell phones, and Ravenclaw!Harry attempting to design and build the first magical computer.
  • Warnings: Do you hate Manipulative!Dumbledore? He's in this one. Its the 'more arrogant and control-freaky than outright evil' incarnation, but still, Dumbles exists in this fic to get verbally smacked down by almost every magical person Tony can call in for support. Culminating in the scene where Thor has to 'explain' to the Wizengamot why overturning Harry's adoption by Tony Stark would be terminally unwise.
    • Comartemis: Troper hive mind strikes again. Manipulative!Dumbles is an irritation but for a fic this good he's worth dealing with. It's worth noting that this new Harry may have the appearance of a Marty Stu at first (his first encounter with Snape is likely to set off alarm bells but that's a pretty isolated incident) but ultimately proves himself innocent of that label. As mentioned above, this one does a lot of stuff that few other Potter fics do; Harry and Draco becoming Friendly Enemies is one of my personal favorites, along with a new twist on the fiasco with Riddle's diary. An excellent read even if you don't know anything about Iron Man or Marvel Comics in general, but having seen the movies will make the latest chapter even funnier than it already is: Sirius Black meets Robert Downey Jr? HEAD FOR THE HILLS!
    • Eddie Current: Credit to Clell here — this version of his pet Manipulative!Dumbledore does come across as more Well-Intentioned Extremist, but the characterization can still grate a bit. That said, much of the rest of the fic can alternate between bland, grating, and the occasional cool idea that gets lost in the shuffle.
    • Ancient Nonun: It's bad. So very bad. Flat characters that do nothing but carry the plot, completely unbalanced powers that only exist to show how awesome Marvel is, and everyone else becoming strawmen. The Wizarding World gets the treatment that Sasuke got in Chunin Examunapologetic bashing and exaggeration that leads straight into Character Derailment. Technomage has no drama, no tension, a mine field of plot holes and badly-used clichés, and no depth whatsoever. It's quite possibly the worst fic this troper has ever read. It's the Battlefield Earth of Harry Potter fanfiction. Be warned that even with the honest praises it gets, it can have very unexpected results.
    • Maki P I've skimmed through 8 chapters, and I have to say that Harry Stark is unbearable. He's arrogant, snotty, conceited, condescending, disrespectful, and just plain annoying; coupled with the aforementioned Manipulative!Dumbledore is impossible to read (Thor chewing the Wizegamot was pretty awesome thought). Also I hate the way he keeps dismissing the Potters, sure he never met them, but they sacrifice their lives for you, you ungrateful little bastard!
    • The Enmity Of Ages 1994: This fic varies in quality. While the HP characters are either evil, stupid, both (Dumbledore being the main victim of this) or Harry's willing minions, and are all strawmen, the author shows a deft writing touch when they get past their hatred of the Potterverse, with some good scenes with the Marvel characters. The main problem, however, is Harry. He's a Fixer Sue and so OOC it is unbelievable. I was skeptical when it turned out Doctor Strange, the most powerful wizard in the universe, can't get past an accidental magic shield set up by Harry, however this could be explained away with different types of magic etc. However I lost all confidence in it when I saw that Harry was not only a supergenius, but a wielder of chaos magic. The fic is essentially an Author Tract of the most irritating kind, interspersed with good scenes.
    • DrWillHatch45: This was one of the first fics I ever read, so there's a bit of nostalgia involved, but I really enjoyed this. Yes, it's a Fix Fic, and the author sure as hell exaggerates some of the underlying problems inherent in the Potterverse, but it's well written. One of the main appeals of this story for me is to show how ridiculous it is for wizards to be hiding from Muggles, and how selfish Harry Potter wizards and witches are. When you have literal gods running around on the streets of New York, government agencies that have no problem employing magic users (S.H.I.E.L.D), and alien invasions every other week, the idea that normal people can't handle a little conjuring starts to become absurd. Most heroes and villains in Marvel have secret identities, but they don't employ mass memory erasure on a massive part of the population like the wizards do just because they don't want to share their gifts with the rest of the world.

''Heroes Assemble! by Stargon1

  • Recommended by: Victorio M Wolff-Haddock
  • Crossover with: Marvel Universe
  • Status: Completed
  • Synopsis: After five years travelling the world, Harry Potter has landed in New York. He figures that there's no better place than the city that never sleeps to settle in and forge a new life. If only the heroes, villains, aliens and spies had received the message.
  • Comments: Because Harry cant stop doing his "saving people thing" during Chitauri invasion, S.H.I.E.L.D manages to caught him in camera, and end up joining the Avengers under the codename of Mage. somewhat following Marvel Cinematic Universe, but definitely diverges after Age of Ultron. even before that, we got new members joining in, like Spider-Man and Squirrel Girl. a bit long read, but its worth it


Awaken Sleeper By Water Mage

  • Recommended by: Tchae
  • Crossover with The Dresden Files
  • Status: dead (last updated October 2015)
  • Synopsis: For years Harrison Potter has been in a mental institution living dreams of magic, wizards, and dark lords. Eventually the dreamer has to awaken. His reality has to be accepted as fantasy. Although some things stay the same...
  • Pairing(s): Harry X Aurora

Born In Fiendfyre, by Samhaine

  • Recommended By: Silent Stranger
  • Crossover with: The Dresden Files.
  • Status: Complete
  • Synopsis: After Justin's death at his hands, a 15-year old Harry Dresden is stranded in Britain, pursued by a vengeful auror, and forced to deal with a Hogwarts education on top of everything.
  • Comments: A very engaging AU that merges the magic system of both Harry Potter and The Dresden Files, and does so fairly well. There's quite a few differences, by far the biggest being that Harry Potter is long dead, the entire Potter family having been killed in battle with Voldemort, who himself was in turn killed by Severus Snape in a suicide bombing as revenge for Lily's death. Other changes include Harry's mother having been a pureblood British witch, and Justin De Mare a follower of the Dark Lord.

The Butterfly Effect by Philo Vance

  • Crossover with Sherlock Holmes
  • Recommended by Logatel, Unclouded TJ, Robinton
  • Status: Dead
  • Synopsis: What if, instead of Ron Weasley, Harry Potter met someone else while going to Hogwarts? Would that little detail change just a little detail or would it change everything?
  • Comments: The story replaces Ron Weasley (who simply does not exist within the story's context) and replaces him with an eleven-year-old Sherlock Holmes. It's surprisingly well-done in that it doesn't have Sherlock simply obliterate the series plot and that it doesn't turn into rather frequent logic abuses that some stories take, instead opting to preserve the series' overall atmosphere while changing its pace. It's definitely worth a look if you like both fandoms.
    • Unclouded TJ: I enjoyed this fic so far and although it would appear at first glance to be cheating you must keep in mind that it's not the adult Sherlock Holmes and he makes mistakes just like any other human. Its main feature is the interaction between Harry and Sherlock and how they seem to work well together.

Consul of the Underworld by Engineer4Ever

  • Recommended by: Dame-Amaryllis
  • Status: Complete
  • Crossover with: Percy Jackson and the Olympians
  • Synopsis:
    • The Game Begins: A child of the Rich One rises. Wielding a smile masking a plotting mind. Carving a righteous but dark path through a world more vast and mysterious than ever imagined. In this game of gods and men, it's her time to shine. Fem!Harry. (Complete)
    • Grinding Phase: As war looms on the horizon, enemies gather from across the globe. From abyssal Tartarus to frigid Jorunheim to exotic Persia to the musical Goblin Kingdom, the chosen emissaries of Olympus must battle with word, blade and spell to keep their world and family safe. (Complete)

Dark Phoenix by Lightningscar

  • Recommended by: eduardogranja
  • Status: Dormant; last updated March 2018
  • Crossover with: Percy Jackson and the Olympians
  • Synopsis: "This camp isn't for me. I don't belong." A few years after Nico said this, some Campers apparently agreed. Will Nico find a new home at Hogwarts or will he meet rejection there as well? Will he even want to return to Camp Half-Blood when they need him?
  • Comments: Out of the many PJO/HP crossovers out there, this is the best one this troper have read. The writing is consistent (even with quite a few typos) and the author has a good pace. It's also one of the only ones that use the roman characters like Jason and Hazel
    • While it's certainly not the worst HP crossover this troper has read, this definitely does not rank well. The writing can be terribly awkward, with inconsistent uses of contraction and the apparent need to make Nico talk formally, everyone is at least a little OOC, Nico solves a lot of problems that happened in Order of the Phoenix and experiences no moral dissonance from being so afraid of becoming evil that a boggart becomes an evil him from the future (which seems to be an odd choice as in PJ-canon Nico displays basically no evil tendencies) and remorselessly using his powers to terrorize malfoy. Also, Nico teaches fighting wrong. It's not a terrible fic if you're dying for your HP/PJ fix, but this troper doesn't see why it made this list.

The Denarian Renegade, its sequels The Denarian Knight, The Denarian Lord, The Denarian Variation, and the extras The Denarian Omakes by Shezza 88

  • Crossover with The Dresden Files.
  • Recommended by Jinx, Looney Toons, Seraviel, acg452, Jorf
  • Status: Complete
  • Synopsis: A seven-year-old Harry finds a blackened silver coin at a low moment in his life.
  • Comments: Harry is delightfully snarky and beautifully balanced between good and evil. It also has the best written Dumbledore I've ever read.
  • Seconded by Looney Toons: And don't miss its sequels The Denarian Knight and The Denarian Lord, and the extras The Denarian Omakes.
    • Harry becomes an insufferable Jerkass within the first three chapters, and remains such throughout the next thirty. Despite excellent plotting, quality writing, and an amazingly well-characterized Dumbledore.
    • Thirded by acg452: Not necessarily perfect per se. He is quite powerful, given that he's sharing brain space with a Fallen Angel, but he has his fair share of problems. For instance, getting the coin stolen at least twice, Voldemort blowing up his apartment and pressing Harry's Berserk Button by burning Meciel's silk sheets. And aside from his small circle of friends, namely Meciel, Dumbledore, Amanda, and Amaris, the last of which is his only blood kin, it's pretty clear most people wouldn't mind him just dying off. That said, he doesn't give two shits about them either, so it all works out. Also, the series is now complete! Boo Ya!

End of the Line by Shewhogaurds

  • Recommended by Lupine Volt, Fenro, Lost Lenore, USA Bobcat, Ronfar, Robinton
  • Status: Complete
  • Crossover with Discworld.
  • Synopsis: After death, characters arrive in Kings Cross to board the Hogwarts Express, on it's way to "The Other Place". The only trouble is that the train is always delayed because of the leaves on the line.
  • Comments: A crossover with Discworld, featuring Death, Albert, and The Death of Rats manning Kings Cross, ushering characters into the afterlife, and waiting patiently with those who are waiting to for someone to catch up.
    • Comartemis: I... wait... what...? I just cried tears of happiness Manly Tears for Peter Pettigrew and freaking Bellatrix. Either there is something seriously wrong with me or this man deserves a medal for giving the most despicable characters in the series their very own Heartwarming Moments.
    • Oh gods, I think I just bawled my eyes out due to sheer awesome heartwarming. This is the best story I've seen in a while. A long while. Especially the parts with Bellatrix and Snape and... scratch that. All of it.
    • Eddie Current did NOT cry over the bit with Kreacher and Reg Black. (sniff) "Did Kreacher do wrong?" No, Kreacher. In this, you were as true as Dobby. DAMNIT ALRIGHT I cried for Kreacher! Awesome fic.
    • Death of the Discworld meets the world of Harry Potter always makes an interesting story. My favorite chapter was the one with Severus Snape.
    • It warmed the cockles of This Troper's heart, that's for sure.
    • If you don't get misty eyed at least twice, one of them during the Kreacher/Regulus chapter, consider it proof that you have been Kissed by a Dementor and have no soul.

Happiness is a Broken Wand by Embracing Madness

  • Crossover with The Lord of the Rings
  • Recommended by: Fenro
  • Status: Dead (last updated January 2012)
  • Synopsis: Severus Snape just wants a new, peaceful life in Middle Earth, but with a vicious war arising and a new Dark Lord gunning for him, he'll have to fight to get that wish. Magic and battles, familiars and friends. Slytherinesque cunning shall always prevail. This story takes place near the end of DH. Gen Fic.

Harry Potter and the Colour of Magic by Chardvignon.

  • Crossover with Discworld.
  • Recommended by MrMous
  • Status: Complete
  • Synopsis: This fanfic posits a post-Voldemort universe in which Harry Potter has survived, and succeeded in his ambition to become an Auror. After a raid which backfires spectacularly, Senior Auror Kingsley Shacklebolt needs to have Harry re-trained to think like a copper. The only person he can trust? Commander Sir Samuel Vimes, Ankh-Morpork City Watch. Only, magic is a lot more powerful in the Discworld, so Potter had better be careful where he points that thing...
  • Pairing(s): Harry/Hermione, Ron is mentioned as being happily married to Luna.

Harry Potter and the Dukes New Clothes by TigerShark

  • Recommended by Blondield
  • Crossover with The Secret Garden
  • Status: Dead (last updated June 2017)
  • Pairings: Draco Malfoy/Harry Potter
  • Rating: General
  • Synopsis: On his first trip to the Wizarding World Harry turns left instead of right. Its amazing how much one little thing can change the world.

Harry Potter and the One Ring of Power by Technomad

  • Crossover with The Lord of the Rings.
  • Recommended by Eoppen
  • Status: Complete
  • Synopsis: Voldemort tried to obtain the One Ring, but it was intercepted. Now, the Boy who Lived must take over the quest to Mordor, with Hermione Granger, Ron Weasley, and...Draco Malfoy? his companions.
    • Comments: This may be the first full-length Lord of the Rings/Harry Potter crossover. The author gives us sections from the POVs of Harry himself, Ron, and Hermione. There are also nods to other writers, such as Lois McMaster Bujold, scattered through the text.

Hoax by Wise Girl 35

  • Crossover with The Camp Half-Blood Series.
  • Recommended by Black Victor Cachat
  • Status: Ongoing
  • Snyopsis: Circe makes her bid for power and revenge, with a ritual to send both herself and Annabeth Chase back in time, only for Annabeth to royally screw it up. Unfortunately, they were still in the past, and the Olympians knew they were doomed unless help of their own was sent back, with Percy Jackson doing it to save his girlfriend.The catch?They are not just back in time, but stuck in Hectate's world of wizards, during the Marauder Era when James Potter, Lily Evans, etc. are attending school. So now they have to deal with school, a suspicious headmaster, and Circe teaming up with Voldemort, and out to kill them both. Will they ever find peace? Or is peace just a hoax for the pair?
  • TV Tropes Page found here.

How to Kill a Vampire by dawnrune

Island of Fire by esama

  • Recommended by: Dame-Amaryllis
  • Crossover with: Temeraire
  • Status: Complete (maybe)
  • Synopsis: The founding of a wizarding nation in a world of dragons.

King of Serpents by karatemaster101

  • Recommended by: mothaibabon
  • Crossover with: Artemis Fowl
  • Status: Complete
  • Synopsis: Actually, this is simply the first book in a series. In many aspects, it's the average Artemis-Fowl-Goes-to-Hogwarts story. Artemis learns that he is a wizard at age eleven, goes to Hogwarts, and wreaks havoc with his genius. However, there's plenty of twists - including an explanation of Artemis' backstory, his father's disappearance, and all of that jazz, altered to fit with the new universe. The storyline is very well planned out and each story in the series corresponds with one another, which really adds to the mystery and ensures a good ending. Favors the Slytherins a bit, but it's Artemis-centric.
  • Comments: Both the Artemis Fowl and Harry Potter series are cleverly woven together so the timelines and plots make sense. The author employs great writing style, proper grammar (which is getting more difficult to find nowadays) and an extremely good, if sarcastic, sense of humor. Artemis' first year in Hogwarts and the following summer is now finished; currently, the second year is in progress. Updates range from weekly to about two months, though the author has assured me in a private message that she has already planned out the details and plot web for the entire series and simply needs time to put it into sentences.

The Master of Death by Ryuugi

Not Quite a Maia by Kara's Aunty

  • Crossover with The Lord of the Rings.
  • Recommended by: BlackWingedAlchemist
  • Status: Dead (maybe. I couldn't find it.)
  • Synopsis: "Middle Earth has a problem: Gandalf the Grey is AWOL in Time & Space after destroying the Balrog of Khazad-dûm. But who will take his place in the Quest to defeat the Dark Lord Sauron? Not who you think... HP/LOTR Crossover. Wildly AU!" Molly Weasley, Neville Longbottom, and another mysterious visitor travel to Middle Earth. Hilarity Ensues.
  • Comments: Seriously, this is the best HP/LOTR crossover this troper has ever read. Though there is little of the titular character, except for mentions, Neville and Molly are absolutely brilliant, and Augusta Longbottom and "Archibald" are side-splittingly hilarious. At a current 36 chapters and 427k+, it's nothing to sneeze at, either.

Of Trinkets and Time Travel by jldew

  • Recommended by: jldew1993
  • Status: Complete
  • Crossover with: The Chronicles of Narnia
  • Synopsis: A self insert gets sent back in time to inhabit the body of Tom Riddle, moments before Albus Dumbledore arrives with his Hogwarts Letter. Absolutely nothing bad can come from this, right?
  • Pairing(s): Tom Riddle/Peter Pevensie.
  • Tags: Alternate Universe, Good!Tom Riddle

The Queen Who Fell To Earth by Bobmin 356 (Has a Complete Sequel and a Third part on indefinite hiatus.)

Quest to the Past by Marisandini.

  • Crossover with The Camp Half-Blood Series.
  • Recommended by Black Victor Cachat
  • Status: Ongoing.
  • Synopsis: Circe has broken the Ancient Law. To spite her mother, she went back in time to help her grandson Voldemort conquer Hecate's precious Wizarding World, and to move from there to challenging the Olympians themselves. With little time to act, and heeding a Prophecy, Zeus and the others choose Percy Jackson to be sent to the past in the Marauders Era to save them all. In the past, and a ten-year old again, Percy befriends Lily Evans (who he knows will be important in the future, if not "how"), and Severus Snape. Meanwhile in the present, Harry Potter attends Hogwarts hearing all these stories about one Perseus Jackson.
  • TV Tropes Page found here

The Rigel Black Chronicles by murkybluematter

  • Crossover with the Song of the Lioness
  • Recommended by ThrawnCA
  • Status: Ongoing
  • Synopsis: Harriett Potter dreams of going to Hogwarts, but in an AU where the school only accepts purebloods, the only way to reach her goal is to switch places with her pureblood male cousin...

Shifting Times by Shadewolf 7

  • Crossover with Animorphs
  • Recommended by The Warrior of Many Faces
  • Status: Dead
  • Synopsis: The Animorphs had an unofficial seventh member. A very young girl who got caught up in their secret war and was given morphing powers to survive. That girl moved to England. And years later, an owl comes for her.
  • Comments: Brilliant. Simply brilliant. Her morphing abilities have well-planned effects on her magic, the story is well-written, and the characters feel real. Main character is an author insert, but it seems to be handled well; Your Mileage May Vary, though, as a few reviewers have noticed some Sue-ish qualities. So far, the main HP characters haven't shown up in earnest; if you don't like OC wizards, don't read this. The fic appears to have died, however.

A Study In Magic by Vixit

  • Crossover with Sherlock Holmes
  • Recommended by: Lustheron, Robinton
  • Status: Complete
  • Synopsis: When Albus Dumbledore shows up at Baker Street with strange demands and baby-filled picnic baskets, Sherlock Holmes is less than thrilled. Featuring Detective!Harry, Competent!Quirrell, and the world's only private consulting detective.
  • Comments: A very interesting take on Harry raised by Sherlock Holmes. Harry isn't all knowing or perfect. Holmes is just as antisocial and distant as canon. And Quirrel is both not evil and incredibly epic.

The Eyes by Shadenight123

  • Recommended by Captain Silver, feral
  • Status: Complete
  • Crossover with the Cthulhu Mythos
  • Synopsis: Harry Potter saw things. Many things didn't gaze back. Harry Potter heard things. Many things didn't listen back. Five pitiful senses were not enough to gaze into the deep abyss, but with magic being magic a sixth sense is more than enough to see what humans were never meant to see.

This Is Not The Chosen One You're Looking For by TardisIsTheOnlyWayToTravel

  • Crossover in the style of Good Omens
  • Recommended by feral
  • Status: Complete
  • Synopsis: When The Antichrist is brought to Earth, he is secretly exchanged for another child with no one the wiser, so that he'll be raised in a secure, supportive environment until he grows up. Unfortunately, the family chosen are the Potters. Situation: FUBAR.

To Face the Wolf (link) by Maglor's_finch

  • Recommended by Goodwrench, Pygmalion
  • Crossover with The Silmarillion.
  • Status: Complete
  • Synopsis: In the Hogwarts dungeons, Snape finds a mysterious, badly wounded stranger. He appears to have been bitten by a werewolf. What happened?
  • Comments: Absolutely fantastic crossover with Tolkien's Silmarillion. This one's a tearjerker.

Victory Day by karatemaster101

  • Crossover with The Hunger Games
  • Recommended by: mothaibabon
  • Status: Complete
  • Synopsis: Tom Marvolo Riddle gets Reaped. The Capitol doesn't stand a chance.
  • Comments: One of the most chilling stories I've ever read. Totally nails Tom Riddle's ruthless character. The way he plays with both the Districts and Snow, during the Hunger Games and after, is just absolutely terrifying.

The Wizard in the Shadows (Link) by Nimbus Llewelyn

  • Recommended by The Enmity Of Ages 1994
  • Status: Complete
  • Crossover with The Lord of the Rings.
  • Synopsis: After the Second Wizarding War, Harry goes to rest and recuperate in an out-of-the-way world. Unfortunately, that world was Middle Earth before the War of the Ring. 4 years on, Harry goes with the Fellowship, with the chief objective of distracting and fighting Saruman. But when did any of Harry's plans not fall apart? This story is now the first in a series. For links, see the trope page.
  • Pairings: Word of God says that Canon is being adhered to as regards pairings. Also pairs Theodred/OC, Sirius/OC, Boromir/Andromeda and OC/OC.
    • Hey guys, Word of God here. For me, this story is a mixture of Old Shame and So Okay, It's Average, which is to be expected, considering that it was the fic I learnt my trade writing and I started it when I was 14 (it was my first novel length piece). I look back on much of it and wince, since, often, it comes off as ham-fisted. I'm leaving it up here because it's not egregiously bad compared to some of the stuff rec'd on these pages, but equally, go in with an awareness of what it is - the first effort of a teenager who spent much of the time of writing in some unpleasant emotional places.

Wizards Abroad by fourth rose

  • Crossover with Discworld.
  • Recommended by: DrWillHatch45
  • Status: Complete
  • Synopsis: When Dumbledore sends him to the "perfect hide-out", Draco doesn't know yet that he'll soon wish Voldemort had got to him first...
    • Basically, Draco hides out at Unseen University on the Disc while Voldemort is out looking for him.

Sherlock Holmes and the Ravenclaw Codex by Pavonis Mons

  • Recommended by: Gmantis
  • Crossover with: Sherlock Holmes
  • Status: Complete
  • Synopsis: A Sherlock Holmes mystery set in Victorian Hogwarts and London. A valuable artefact has been stolen from Hogwarts, and the only suspect - a Muggleborn pupil - has disappeared. Headmaster Phineas Nigellus Black summons Holmes to Hogwarts to retrieve the Ravenclaw Codex, but things are not as simple as they seem, and Holmes and Watson soon find themselves in the middle of a most perplexing case.

"Useless" by"Whatdoyoumeanimnotawizard"

  • Recommended by help
  • Crossover with: Percy Jackson and the Olympians
  • "Status": Complete for now, although the author mentioned elsewhere that she might continue it a little in the distant and uncertain furture.
  • "Synopsis": Nico di Angelo was eight when his mother died. His older sister, Bianca, was Twelve. Shortly after Maria's death, Hades put both Bianca and Nico into an Orphanage. The orphanage was Wool's Orphanage, and there Nico met Tom Riddle. A short HP/PJO crossover going into a bit more depth about Nico di Angelo's childhood and the reason Tom Riddle thinks friendship is useless.
  • "Pairing(s)": Very, VERY, minor Tom Riddle/Nico di Angelo near the end. Still worth the read, even if that ship isn't your thing
  • "Comments": As some reviewers said: "...brilliant." "...very well-written story." "...the last line. I think it's quite powerful." "Wow just wow good wow"

Megamorphs: The Wizarding World by typhoonboom08

  • Recommended by Roo
  • Status: Complete
  • Crossover with: Animorphs
  • Synopsis: The Yeerks have discovered the wizarding world, and now that Dumbledore is dead and Snape is the Headmaster of Hogwarts they are slowly infiltrating the school. Luckily, the Animorphs and Ax have been informed of the situation by the Chee, and have come over to Britain to help — because a society of wizard Controllers would be a bad thing. Dumbledore's Army are about to acquire not only some new enemies, but some new allies and new abilities as well...
  • Comments: The first in the Magical Animorphs series. So far, there have been two sequels, which focus on the HP characters and their continued fight against the Yeerks: Magical Animorphs 1: Hogwarts and Magical Animorphs 2: The Ministry of Magic.

Rise of the Dark Man by cactusx33

  • Recommended by: Vampireandthen
  • Crossover with: The Stand
  • Status: Complete
  • Synopsis: In the quest for the Dark Tower he knew death. But what if, as he had done before, he woke up in another world? This is the story of how Randall Flagg, the man in black, met a young orphan and changed the course of wizarding history forever.
  • Comments: Nightmare Fuel in the form of Randall Flagg taking on Tom Riddle as his apprentice.

Godling Ascending by Hi Pot And News

  • Recommended by: Dame-Amaryllis
  • Status: Ongoing; last updated December 25, 2020
  • Crossover with: The Camp Half-Blood Series
  • Synopsis: Herakles Potter knew she was odd. Exactly how odd turned out to be far odder than she originally thought. Fem!Harry.
  • Notes: Alternate link here.

A Wand for Skitter by ShayneT (AO3 Link)

  • Recommended by: Victorio M Wolff-Haddock
  • Crossover with: Worm
  • Status: Completed
  • Synopsis: Waking in the body of a murdered child, Taylor Hebert, once a super villain and later a super hero must discover who has been killing muggleborns while being forced to go to Hogwarts, among groups who are the most likely suspects.
  • Now has a Tropes page

     Live-Action Films 

The Boy Who Fell, by Darth Marrs

  • Recommended by Comartemis, Unclouded TJ, Looney Toons
  • Crossover with Star Wars
  • Status: Complete
  • Synopsis: Thirteen years ago, Harry Potter was murdered by Vernon Dursley, and with him went the last hope of magical Britain. Now, as Voldemort and his Death Eaters spread their reign of terror across the Wizarding World, Luna Lovegood makes a wish for someone to come and make it all better. What she gets is Ben Skywalker.
  • Comments: Yes, it really is Star Wars meets Harry Potter. Search your feelings, you know you want to know how this can possibly work.
    • Seconded; this is a well-written and enjoyable fic with good characterization and no bashing. The power levels are also portrayed realistically without the Jedi getting Story-Breaker Power.

Dangerous Gifts by SGCbearclub

  • Recommended by Fenro
  • Crossover with Labyrinth
  • Status: Dead. Vanished from the Internet. If found please post a working link.
    • Found a link on the Internet Archive.
  • Pairing(s): Jareth/Sarah and SS/HG
  • Synopsis: Snape never asked to be rescued. Sarah never asked for magic. Jareth doesn't generally ask, period. The Ministry should have remembered that, back when they assumed they won the Goblin Wars. Nothing is ever what it seems. The story takes place after DH but without the epilogue. Labyrinth crossover.
  • Comments: There is a lot of Sarah/Snape interaction, but my most favored part is the interactions between Jareth/Snape. One thing that was brought to my attention was that I needed to do a bit of research on mythology in order to fully comprehend the story. —Fenro
Warnings: Rated M for Sexual Situations, Suggestive Themes, Violence, and Mild Language.

What is Said is Said by GenkaiFan

  • Recommended by Meduini
  • Crossover with Labyrinth
  • Status: Complete
  • Pairings: Sarah/Jareth
  • Synopsis: Dudley wishes Harry away a la Sarah does with her half-brother Toby in the Labyrinth film. Jareth and Sarah raise Harry alongside their twin boys.
  • Comments: This is actually the second in the series, the first, Dear Jareth, is a standalone fic and doesn't crossover like the rest of the series does with Harry Potter at minimum. There's 1 fic that crosses over with SG-1, 1 with Hikaru no Go, and the newest with the MCU. While reading 'Dear Jareth' isn't needed for reading most of the fics in the series, I'd recommend reading 'What's Said' for the rest in the universe.

Evil Be Thou My Good by Ruskbyte

  • Recommended by Crackersdon'tmatter, Unclouded TJ, Looney Toons, Shadow AI, Seraviel, IraTheSquire, Shadowofthepen, feral, Agent_B
  • Crossover with Hellraiser
  • Status: Complete
  • Synopsis: Uncle Vernon thought to bring home a puzzle toy he bought to encourage Dudley's mental stimulation. A box-shaped puzzle. A box that plays music. A young Harry solves the puzzle, and alone survives the consequences, to make it quick. Except now he can't stop thinking about the box, about that tune. And he's gained the attention of a very powerful dark being who is not a wizard. The sequel All Problems Solved (Complete) is incredibly good as well.
  • Comments:
    • [Unknown]: Arguably one of the best psychologically frightening stories ever. I had goosebumps reading it.
    • FrodoLives: Extremely creepy. Gives sufficient background so that it still will make sense to people who have not see the Hellraiser movies, like this troper. Best punishment for Fudge and Umbridge ever.
    • IraTheSquire: Holy crap. Most. Deliciously. Disturbing. Thing. Ever. Read this if you are Harry Potter fan. Read this if you are a Hellraiser fan. Hell, read this even if you know nothing about neither. This guy knows how to write psychological thrillers and I can assure all aspired writers can pick up a thing or two from reading this. This NEEDS a page dedicated to it.
    • tomiekawakami: YMMV here. It's barely disturbing more than it is an edge-fest. It's well written, despite some moments of OOC from side characters. It's a revenge fic. Every character that has ever sincerely done Harry wrong meets a graphically depicted hellish fate. That's it.

Finding Home by cywsaphire

  • Recommended by: autopanda, Dame-Amaryllis
  • Crossover with: The Avengers (2012)
  • Status: Complete
  • Synopsis: When Harry finally accepted the fact that he had stopped aging, ten years had passed and he knew it was time to leave.
  • Comments: Go read this. Now. It is extremely well written. One of the few complaints I have, is that Harry has the overused backstory of being the master of death, but the rest of the fic is excellent. The author also redeems Loki. Also, the author has some midquels to it and other HPxAvengers crossovers that are great. There are too many to link though. —autopanda
    • For this Troper, Harry came off as the God-Mode Sue to end all God-Mode Sues. He become best friends with Tony Stark, Saves Coulson, Sets Loki up on making a Heel–Face Turn, he's the only person Black Widow opens up to besides Hawkeye, he can suppress Bruce Banner's anger, Hulk goes into an Unstoppable Rage when he's fatally wounded and pretty much usurps Captain America as the leader of the Avengers and he doesn't even technically join and it honestly seems like what would happen if Harry Potter himself wrote himself into an Avengers and made everyone else suck. —[Unknown]
      • USA Bobcat: I have to agree. This 'fic is overrated, and very bad. All I can say is that the grammar and spelling aren't too bad - everything else is.

Harry Potter and the Dark Knight by Denial and Deception

  • Recommended by feral
  • Crossover with The Dark Knight Trilogy
  • Status: Dead
  • Synopsis: AU, Film Fic. Madness is like gravity, all you need is a little push...Dark!Harry, Evil!Harry, Azkaban, Rated M for violence, You knew someone would do this eventually...

Harry Tano by TheBeardedOne

  • Crossover with: Star Wars
  • Recommended by Inspibrain 101, Robinton
  • Status: Complete
  • Synopsis: Ahsoka Tano, after being transported to Earth, discovers four-year-old Harry Potter, locked in his cupboard. She takes it upon herself to rescue him from his abusive guardians, and teach him the ways of the force. There are severe consequences, in both the wizarding world, and the muggle world...
  • Comments: You might be rolling your eyes. "Oh, boy! It's one of those lame AUs where everything plays out exactly the same as it did in the books, except Harry has a nicer childhood." Believe you me, that is the exact opposite of what happens here. If you are on this website, I cannot recommend this story enough! The author is definitely a troper. Harry being pulled out of his home by Ashoka Tano creates waves around the entire planet- the muggles react in a big way, and major changes occur in the wizarding world as a result. This author manages to address nearly every headscratcher brought up on Harry Potter's trope page- from Harry being placed with the Dursleys, to the relationship between magic and technology, to the ministry of magic's relationship with the muggle government, to what the heck the Founders were thinking when they included moving stairs? It's glorious, trope-filled social commentary. And there is an epic adventure woven through the entire story, with arcs; just when you think things are going perfectly, it gets real bad, real fast. And just when you think things can't get any worse, it gets SO MUCH BETTER! This story definitely requires a somewhat in-depth knowledge of the Harry Potter universe, including the mechanics of spells and wizard politics. You don't need to know too much on the Star Wars side, just general background knowledge of the Jedi and the character of Ashoka Tano. Even if you know next to nothing about Star Wars, this is definitely a Harry Potter-oriented fic. The author does, however, show off some impressive knowledge of the tech in the Star Wars expanded universe, as well as a comprehensive understanding of politics and reactionary policies. In addition- I know this bothers a lot of Harry Potter fanfiction readers- the writer keeps the timeline in the context of world events. It is, in fact, set in the 1980s-'90s. It may seem like it takes a slow pace, but there is so much content packed in, you don't want it to go any faster, you want to read more! The author has a wonderful way of jumping seamlessly to various people- all sorts, in the wizarding world and the muggle world, as well as an out-of-the-blue shot on Emperor Palpatine near the end, more humorous than anything else. Everyone has an angle, everyone has an opinion, everyone has a stake in the game. It's definitely a longer read, but, honestly, THIS should have been the real Harry Potter series, and the stuff JK wrote should have been the fan fiction. —Insipibrain 101
    • Good but a little long. —Robinton

Hellhound by lil miss darkside

  • Recommended by feral
  • Status: Dead (last updated April 2013)
  • Crossover with The Chronicles of Riddick
  • Pairings: Harry/Riddick
  • Status: Updated April 2013
  • Synopsis: Slash Fic, Dark!Harry, Immortal!Harry, Powerful!Harry. After a complicated Final Battle, Harry stayed in his animagus form. Thousands of years later, he is found in Crematoria by Riddick. After a Necromonger invasion, they seek revenge together and end up finding a perfect match in each other.

I Fleetly Flee, I Fly by emouse33

  • Recommended by Pastykake
  • Status: Dormant; last update November 2020
  • Crossover with Marvel Cinematic Universe
  • Synopsis: A slightly different encounter with Quirrell at the end of first year leads to new problems, new abilities, and a gateway to the extraordinary. A HP/Avengers crossover that respects the timelines while throwing in new twists and characters you may not have seen coming.

The Kyle Side, by Darth Marrs

  • Recommended by Omeganian
  • Crossover with Star Wars
  • Status: Complete
  • Synopsis: An aged, broken Jedi general came to Earth hoping to retire. However, when he went to a park and saw a young boy with unlimited Force potential getting the snot beat out of him, he knew the Force was not through making his life interesting. Takes place after the Legacy of the Force books, showing a bit of how the galaxy got to the Legacy situation.

Kill Bella by MsShayXPear

  • Recommended by: Mac Phisto
  • Status: Dead
  • Crossover with Kill Bill.
  • Synopsis: Someone has put a hit on Bellatrix Lestrange. And Elle Driver is out for the big fat kill.
  • Warning: Rated M, just to be safe.
  • Comments: A work-in-progress. The sexual tension is intense, but nothing has happened yet. Can't wait for it!
    • Dead fic.

Magic and Myth by Q u e e n V a m p

  • Recommended by: TheG
  • Crossover with: Thor
  • Pairings: Nothing yet but leading up to Teenage!Loki/Hermione
  • Status: Dead
  • Synopsis: Set years before Thor and between Prisoner of Azkaban and Goblet of Fire. One night when running home, Hermione witnesses a man literately fall out of the sky and land in her garden. Dragging the man inside, he recovers and introduces himself as Loki Odinson, Prince of Asgard and God of Mischief...Hermione quickly realizes the she should've just left him outside...
  • Comments: This fic is set years before the Thor movie, so Loki is a teenager so Squick is avoided and he's pre-Face-Heel Turn. Loki and Hermione's interactions are nothing short of hilarious with Loki being the The Charmer and Hermione remaining in character the whole time and it works beautifully. At the moment, it only has 3 chapters but they are both quite long so that makes up for it.

Perfectly Alien by SignatureDish

  • Crossover with Transformers.
  • Recommended by fruitstripegum
  • Status: Dormant; last updated May 2020
  • Synopsis: Harry had only wanted to get the Hoover Dam tour over with, he didn't know what he did wrong. Why did that mysterious cube turn him into a robot? Had everyone known there was a huge laboratory underneath the dam? And what was going to happen to him now? Poor Harry felt lost in his little Sector Seven cell. But it wasn't all bad, at least he had Lord Megatron there to protect him.

Strange Bedfellows by MST3KguruK10 & Mrs Hyde

  • Recommended by Revlid, Skazka, Fenro
  • Status: Complete
  • Crossover with Once Upon a Time in Mexico.
  • Synopsis: "We all need someone we can lean on..." Two unlikely men in an unlikely place find an unlikely friendship in each other. A post-DH, post-Once Upon a Time in Mexico crossover AU featuring Severus Snape and Sheldon Sands.
  • Comments: Yes, it's a Harry Potter, Once Upon a Time in Mexico crossover. No, I have no idea how that idea came about. Yes, it is pretty awesome.
    • Seconded by Skazka, who literally stayed up overnight without sleeping to read this fic the whole way through. A warning is due, though— as in some of the author's other fics, Sands is occasionally fond of manipulating people using sex, and Snape is no exception. Still, I wouldn't call it an outright slashfic. Perhaps with the exception of much of Chapter 11.

That We've Broken Their Statues by Nagia

  • Recommended by Little Fall Of Stars
  • Status: Dormant; last updated August 2018
  • Crossover with Labyrinth
  • Synopsis: Sarah stumbles into the Leaky Cauldron. She stumbles back out again with a Gringotts account she didn't start, a part-time job at Hogwarts, and an awkward truce with the Goblin King.
  • Comments: One of the better 'Sarah Williams works at Hogwarts' crossovers. So far, it's struck a perfect balance between non-involvement and Jareth ex machina. And Sarah's perspective on Muggle studies (and the wizarding world) is refreshing.

Trial By Fireby celticbard

  • Recommended by Kae Marshall
  • Status: Complete
  • Crossover with Silent Hill.
  • Synopsis: Draco lifted his head, blinking the blood away from his eyes. Pain seized him, throwing him against the driver’s seat with all the force of the Cruciatus Curse. Mocking shards of memory danced through his dazed mind.The sirens. The cop. The slick road. His car was nestled against a guardrail, the remnants of his shattered headlights dusting the blacktop like frost. And outside, the sky wept soot.
  • Comments: Well written and in character. You don't even have to watch the Silent Hill movie to enjoy the fic.

Vanity, Vice and Voyeurism by MsShayXPear

  • Recommended by: Mac Phisto
  • Status: Complete
  • Crossover with Fight Club.
  • Synopsis: As much as she hates muggles, Bellatrix Lestrange can't help but be fascinated by them. You can learn a lot about a person just by taking a look at how they live. One day, she decides to sneak into the apartment of Ms. Marla Singer.
  • Warning: Rated M, for obvious reasons
  • Comments: Two of the most depraved characters ever, both played by the most beautiful woman in the world... how was I supposed to pass this up??

Wand and Shield by Morta's Priest

  • Recommended by throwaawy, Magic Kirby
  • Status: Dead (last updated July 2015)
  • Crossover with The Avengers.
  • Synopsis: The world is breaking; war and technology are pushing on the edge of the unbelievable, and S.H.I.E.L.D. desperately attempts to keep the peace. Their newest target is a man called Harry; he is capable of impossible feats and has no clear origin or allegiance. A new piece on the chessboard, one that doesn't follow any of the rules.

We Are Nothing by Ruskbyte

  • Crossover with A Nightmare on Elm Street.
  • Recommended by: DrWillHatch45, Looney Toons, feral
  • Status: Dead
  • Synopsis: Snape's Occlumency lessons have shattered the last defences of Harry's mind. Now, completely unprotected, his dreams have become home to a nightmare other than Voldemort. A nightmare that has taken on a life of its own.
  • Pairing(s): Ginny and a minor Ravenclaw character named Michael Corner.
  • Warnings: Very gory, strong language, and some racial and sexist epithets(all of them by Freddy).

Come Together by oniforever

  • Recommended by: EmperorMax2019
  • Status: Ongoing
  • Crossover with: Marvel Cinematic Universe
  • Synopsis: It begins in 1943. Tom Riddle searches for his place in the world, and ends up getting captured by HYDRA. After being saved by a crazy muggle in spandex, he must learn to adapt to the new playing field, and have some odd friendships along the way. AU. Soldier!Tom Riddle. No pairings. Starts in CA:TFA but will spread to the other films.

     Live-Action TV 

Alexander Harris and the Shadow Council by Tenhawk

  • Recommended by: Spooner Wilkins, FrodoLives, Looney Toons
  • Status:dead (probably. I couldn't reach the website.)
  • Crossover with The Addams Family and Buffy the Vampire Slayer
  • Synopsis: "A step to one side in time, a shift to another in space, and you would be surprised at the changes one might wreak on an unsuspecting world."
    • So far this is a threeway crossover between The Addams Family, Buffy the Vampire Slayer, and Harry Potter. The main focus is on Xander Harris and Wednesday Addams as they they go to Hogwarts but Hermione from the "Golden Trio" does get her share of the story. The story starts of with a slight retelling of the first Harry Potter book and unravels it as Xander works his particular brand of chaos. This could well be described as a day-in-the-life story. Main page has been down awhile. Can also be found in the internet archive here
  • "Comments": Highly recommend this story. Xander gets adopted (sort of) by the Addams Family. Wednesday terrifies everyone at Hogwarts. Buffy hasn't shown up yet.

Derwood Dursley by TeraWatt

  • Recommended by: Timeaesnyx
  • Crossover with Bewitched
  • Status: Complete
  • Synopsis: A very short onepiece that takes Darren out of character and uses that to give Vernon a sympathetic backstory.

Damned Demented Demons, Vile Violent Vacations by hell_half_acre

  • Part of the Demented Verse series.
  • Recommended by bettername2come
  • Crossover with Supernatural
  • Status: Complete
  • Synospsis: Harry saves the Winchesters from a Dementor attack, but the Winchesters aren't the only ones that need protecting. Takes place during Season 4 of Supernatural and Post-DH for Harry Potter. Vile Violent Vacations is a sequel that takes place during the middle of season 5 of Supernatural.
  • Comments: The author does a great job of combining the two universes, as well as giving some good insights into what the Harry Potter characters are up to currently. Sticks surprisingly close to Canon. —bettername2come

Draco Malfoy and the Snarky Pen Pal by shadowglove

  • Recommended by The Rich Sheik
  • Crossover with Smallville
  • Status: Complete
  • Synopsis: Mandatory Muggle Studies class requires Draco to write to a muggle pen pal, who happens to be Chloe Sullivan. And there was much snarking.
  • Comments: A short fic, but with plenty of Character Development for Draco and his attitude towards muggles. Ends abruptly but the author is planning a sequel, which will be added if/when it is written.

The Flat Next Door by Tassos

  • Recommended by Looney Toons
  • Crossover with Buffy the Vampire Slayer
  • Status: Complete
  • Synopsis: In an alternate summer after the events of Order of the Phoenix, Harry and the Dursleys are moved by the Order into an apartment when 4 Privet Drive is identified and targeted by the Death Eaters. Harry finds little to recommend the change until he meets the gentleman living in the next apartment — one Mr. Rupert Giles, whose quiet and respectful friendship saves Harry's sanity and soul from the depths of despair.
  • Comments: Set after the final episode of BTVS and featuring almost none of the other characters from the series, this is a low-key story that nonetheless carries an unexpected emotional intensity, all the way to its quietly surprising ending.

Fear Us. We Are- by joshlamont

  • Crossover with Buffy the Vampire Slayer.
  • Status: Dead (last updated December 2014)
  • Recommended by FrodoLives, Looney Toons
  • Synopsis: After ending up in the wrong part of the Multiverse, a 27-year-old magic-warping Xander goes to Hogwarts.
  • Comments: Very entertaining. Despite being extremely magically inhibited, Xander adapts to Hogwarts and changes his house, the school, and the whole magical society. Latest two chapters appear to start a crossover with Girl Genius.

Blaine Anderson and the Improbable Crossover by narceus

  • Recommended by cmn8
  • Status: Stories 1 and 2 are Complete, but the series is Dormant
  • Crossover with Glee
  • Synopsis: Blaine is secretly Harry in disguise, having gone into hiding after the events of Goblet of Fire damaged his ability to use magic. There are two stories in this series; the first focuses on Harry adapting to being Blaine, and the second focuses on the relationship between Kurt and Blaine/Harry and how Kurt discovers Blarry's true identity.
  • Comments: This is a crossover in which you need to be familiar with both HP and Glee, but it's very well done and an interesting character study, both for Harry and for Blaine. There may be a third story forthcoming, but it's unclear.

Blood Doesn't Make Family by musicdefinesusall

  • Recommended by feral, Urbandshi
  • Crossover with Supernatural
  • Status: Dead
  • Synospsis: On his own one night, Crowley discovers a house where he hears a child being abused by his family. He takes the kid in and adopts him as his own son. The child: Harry Potter before he gets his Hogwarts letter. This is a story of him growing up with Crowley as his father and all the obstacles that come with becoming half demon; along with also being a wizard.

Browncoat, Green Eyes by nonjon

  • Recommended by Unclouded TJ, Dor, Seraviel, Shadow AI, Looney Toons, USA Bobcat, Urbandshi, Robinton
  • Crossover with Firefly (post-Serenity)
  • Status: Complete
  • Synopsis: Two years have passed since the secret of the planet Miranda got broadcast across the whole 'verse in 2518. The crew of Serenity finally hires a new pilot, but he's a bit peculiar.
  • Comments:
    • Dor: Seconded enthusiastically. Nonjon mostly writes comedy, which is a shame because this story proves he can write "serious" fic to rival anyone else mentioned on this page. There's definitely more than a few laughs in there, too (Chapter Four in particular is just one after another), but unlike the rest of Nonjon's work, there's more going on in Browncoat than just the comedy.
    • Comartemis: I know absolutely nothing about Firefly but I had a blast with this fic anyways. It bears noting, however, that Harry appears at first glance to be massively out of character until certain details regarding his past are revealed later on in the story, namely the fact that Harry spent a bit more than a century married to Luna Lovegood of all people (You hear that noise? That's the sound of everyone who's ever read that far going "Oh, that explains it.").

Champion's Lullaby by SweetCaroline91

  • Recommended by Eigen, Urbandshi
  • Crossover with Glee
  • Status: Dead (last updated January 2015)
  • Synopsis: Things weren't going as Kurt expected, Dalton wasn't Wonderland and Blaine was painfully oblivious; then Harry swooped in, claimed the prince charming role without auditioning and led him down the rabbit hole... Kurt blamed the accent. Full summary inside. Will be KurtxHarryxBlaine threesome. AU.
  • Comments: You have never seen a crossover like this. This story loses absolutely nothing despite being a non-magic!AU. All the HP characters somehow manage to be both in-character and more badass than their canon selves. Harry is at his best; charismatic, confident, charming, manipulative (but uses his powers for good), and is absolutely the most charming boyfriend and most devoted boyfriend in the world. Story focuses heavily on character development, with tons of memorable noodle-incidents and realistic depictions of friendships and romance. The writing style is easy to read, with only rare grammar mistakes, and updates are frequent. Kurt and the Dalton crew are the main Glee cast, but the story can easily be understood despite never having watched Glee. Starts off as Harry/Kurt, with Harry/Kurt/Blaine in development. Has complimentary works under author's profile. Definitely worth a read! —Eigen

The Lesser Of Two Evils by Briememory

  • Recommended by Roo
  • Crossover with Buffy the Vampire Slayer
  • Status: Dead, last updated December 2013.
  • Synopsis: When the Order of Dagon gave the Key human shape, they sent it not to the Slayer in Sunnydale, but to the Chosen One in England. Now, just starting his sixth year at Hogwarts, Harry Potter has no idea why it's suddenly so hard balancing being the Boy Who Lived with taking care of his sulky little sister Dawn. But as it turns out, not everyone in the Wizarding world are so easy to modify the memories of...
    • At the time of writing, Dawn is the only Buffy character to play a major role in the story, though both Buffy and Quentin Travers have made cameos, and the author ensures us that the Sunnydale gang will eventually come into the story.

The Most Deadly Alliance by Emachinescat

  • Crossover with Merlin.
  • Recommended by LordFedora
  • Status: Complete
  • Synopsis: A deadly alliance has been made, a terrible deal has been struck. When Harry and his friends find themselves in ancient Camelot, they and their new friend Merlin are faced with a terrible evil that is intent on killing them all.

The Magic of Torchwood by Bella the Strange

  • Crossover with Torchwood.
  • Recommended by Seiryuu, TheEnmityOfAges1994, Caellach Tiger Eye, EMY3K, Looney Toons
  • Status: Dormant (last updated December 2018)
  • Synopsis: The Torchwood team have been accepted at Hogwarts School of Witchcraft and Wizardry. Set between Adam and Reset. Rated T because of Jack Harkness, swearing, mature themes, slash etc... it's Torchwood!
  • Comments: An amazing piece of work that age-regresses the Torchwood team and sends them to Hogwarts at the beginning of Harry's third year. Story takes place from there onwards and masterfully inserts Torchwood during the years and develops pre-existing minor characters as well as introducing rounded ones.
    • Thirded. This is brilliant. The Torchwood characters are cleverly interwoven with the Potter-verse. Fair warning, though, there's a lot of Ron-bashing (and yes, the bashing really is as bad as it sounds). — EMY3K
      • I heartily agree. Seriously, I bloody love this fic. It takes all the best elements of Torchwood and integrates them into the Potterverse perfectly without feeling out of place (mostly by adjusting the tone of both series to somewhere in the middle, but without being forced). The characterisation is altogether very strong and consistent, and the bashing of Ron isn't quite as bad as it sounds — it's more a highlighting of his character flaws compared to the other main HP cast and giving him time to steadily grow out of them (which started when Book Five was reached). It's really at worse Author Tract against Rowling for her own narrative faults (the only thing Ron's being bashed for is fervently hating on Slytherins and nothing else, which as Hermione notes in a later chapter of the fic isn't a good thing). However, it seems that Ron is the only character not to get character development. On a lighter note, there's quite some brilliant humour in there, and some unexpectedly heartwarming moments which are mostly a result of the team's presence. Even better, while the changes do push the story positively (for the most part), the TW team aren't in Fixer Sue territory at all and there's sufficient tension and conflict to go around. This fic is a must-read for TW and HP fans everywhere.

Mystery Science Theater 1000 by Hardman 5509

  • Recommended by Hardman 5509 (Currently desperate to hear anything.)
  • Status: Dead (last updated February 2014)
  • Fandoms: Shadow Hearts, Mystery Science Theater 3000, My Immortal
  • Synopsis: In the style of MST3K, the main characters from the Shadow Hearts series (Yuri Hyuga, Alice Elliot, Johnny Garland, and Shania) are forced to watch/read horrible Fan Fics by Proffesor Gilbert and Nicolai. From the 11th chapter on, they tackle My Immortal, the Manos of the internet. Currently covers the first seven chapters.

Harry Potter - Carry On Wayward Son by Sliksick

  • Crossover with Supernatural
  • Recommended by Time Lord Victorious
  • Status: Dead; last updated March 2019
  • Synopsis: On the job one night, Crowley discovers a house with a child being abused by a family. He takes the kid in and adopts him as his son. The child is Harry Potter before he ever got his letter to Hogwarts. This is a story of him growing up with Crowley and Gabriel as parental figures with all the obstacles that come with becoming part demon, part wizard, and all kinds of crazy.
  • Comments: This was originally written as an unofficial continuation of Blood Don't Make Family (see above), and now that author of this fic and that fic have resolved everything, it's more or less an official continuation of sorts. It starts off more on the Supernatural side of things, and then once they get past S5 of SPN, the focus shifts onto Harry Potter and the Philosopher's Stone. Note that due to Crowley and Gabriel's influence on a young Harry, the character of Harry Potter is a complete 180 from his canon counterpart, and at times he may come off as a God-Mode Sue. At the same time, this fic is also a really enjoyable read, with Crowley and Gabriel keeping things nice grounded for around the first half so far. The storyline of Supernatural is more or less the same as it is in canon, but with a few key differences, all of those being the direct result of Harry's presence. And so far, it seems as if the Harry Potter storyline is going to be diverging from canon in many ways.

If Wishes Were Thestrals, We'd All Run Screaming by SusanAnthony (Crossover with Harry Potter)

  • Crossover with Buffy the Vampire Slayer.
  • Recommended by FrodoLives, Looney Toons, Robinton
  • Status: Dead (last updated November 2011)
  • Synopsis: "Xander makes a wish and the Wizarding World will never be the same." Xander and Harry Potter switch places, altering reality, and Xander and Willow are the only ones who know it.

YAHF? Well Something Like That by wargear

  • Crossover with Buffy the Vampire Slayer
  • Recommended by: Looney Toons
  • Status: Complete
  • Synopsis: When the Scoobies wake up in Hogsmeade with no idea how they got there, wearing other people's faces, and with some of their dead apparently resurrected, they're pretty sure something strange is going on. It is Halloween, after all. But this time it's not Ethan Rayne who's behind things...
  • Comments: The first, and maybe only, time you will see the classic Buffy "Yet Another Halloween Fic" plot turned on its head and played from the other side. I'd say more, but it's too easy to spoil the fun.

A Year With Q, by Morena Evensong

  • Recommended by: acg452
  • Status: Dead
  • Crossover with Star Trek: The Next Generation.
  • Author's Description: Q loses a bet with his son. Now he must pretend to be a sixth-year student at Hogwarts without using any of his powers. How will Hogwarts react to the new student? Will Q survive the year?
  • Description: The above sums it up rather well. Q goes to Hogwarts for Sixth Year, and his son becomes the DADA teacher. Just... picture that for a moment. Most of the focus is not on Harry, which should come as no surprise to those familiar with the Entity Known as Q. Has a few cameo appearances by the various crews Q has mess- er, that is, a few of Q's friends show up from time to time.

White Knights and Dark Lords.

  • Recommended by Gamma Cavy
  • Status, Complete. The sequel, Council and Ministry, is also complete.
  • Crossover with Buffy: The Vampire Slayer.
  • Summary: Three years after Sunnydale went under, Voldemort's resurrection at the end of Goblet of Fire gains the Scoobies' attention. Xander and Spike are sent to help Harry. Life is about to get very interesting for all involved.
  • Comments: Seconded by Silent Stranger. My sole complaint is that the fic and it's sequel contains one of the worst cases of Dumbledore bashing I've ever seen, and that's saying something, but other than that, the writing is good, and it has an interesting plot.

Dark Dynasty by The Silver Bullet

  • Recommended by Emperor Max 2019
  • Crossover with Once Upon a Time
  • Status: Dead ( last updated July 2011)
  • Synopsis: Cora unknowingly fulfilled her bargain to the Dark One, she bore him a child. However, due to a realm jumper who is desperate for a savior and a couple of memory charms, she's unaware that she was ever pregnant. Fate, however, decides to intervene after Harry Potter's first year.
  • Takes place in the summer after Book 1 on the Harry Potter side and right in the middle of Season 2 for Once Upon A Time. It's another "Harry was actually adopted by the Potters" fic, but it's really well done. The story explores the Butterfly Effect of Harry being the long lost son of Cora and Rumplestilskin and how the revelation of his true parentage affects the story for both universes. Fair warning, there's a noticeable amount of bashing (mainly Dumbledore, the Weasleys, and the Wizarding World in general), but it's not as noticeable until later on. Even then, the majority of the bashing is done by Rumplestiltskin, so it's a bit understandable given his personality. A great read with lots of Funny and Heartwarming Moments in equal measure.
  • Warnings: AU (for both canons), Slash (no pairings, but one character having a Coming-Out Story is a major plot point), and the aforementioned bashing.

Truth, Myths and Legends by Isilarma

  • Recommended by: Hpfan4ever
  • Status: One-shot. Around 4000 words.
  • Crossover with: Doctor Who
  • Pairings: None.
  • Synopsis: (Author's summary) A subtractive myth: When aspects of a historical figure are ignored or forgotten to create a one-dimensional 'hero' or 'villain'. When the Doctor arrives at Hogwarts in A.D. 993, he finds that things are not exactly as he has been led to believe.
  • Comments: Part of the Founders' verse though it isn't necessary to have read that first. The tenth Doctor meets Salazar Slytherin. It doesn't go at all the way the Doctor expects.

Old Country'' by astolat

  • Crossover with Supernatural
  • Pairings: Sam/Dean
  • Recommended by: Meteor
  • Status: Complete
  • Synopsis: Dean Winchester is a Hufflepuff who thinks he's a Gryffindor, and Sam Winchester is a Slytherin who thinks he's a Ravenclaw. Discuss. (Dean and Sam must attend Hogwarts to obtain a magical inheritance. Story occurs the year after the Battle of Hogwarts.)

Percy Weasley: Vampire Hunter by Viola

  • Recommended by Those Dancing Days
  • Status: Dead (last updated August 2003)
  • Crossover with Angel.
  • Synopsis: In the summer after Order of the Phoenix, Percy Weasley is a man without a mission. Recently sacked from his Ministry job after the firing of Fudge, Weasley sets off to find another job. His job hunting takes an unexpected turn when he encounters a vampire, and helps Kingsley Shacklebolt with several missions. With the help of Lorne, Ginny, and Mrs. Longbottom, Percy sets up an "Auror-for-hire" office, hoping to be a "Champion for the Good of Mankind".
  • Comments: Incomplete. This story is well worth the read, even though the updates are sporadic (luckily, there's a tag for the story on the author's LJ). Everyone is still in character, plus there's a likable Ginny Weasley!

Potter Who and the Wossname's Thingummy by ForrestUUID

  • Recommended by: Madan Eccles 19, millsmess
  • Status: Ongoing
  • Crossover with Doctor Who. (11th Doctor)
  • Synopsis: No TARDIS, no screwdriver, and no memory — on the plus side, an owl and a wand! May or may not be AU. "It's all in the mind, you know."
  • Comments: Quite possibly the single greatest fanfic I've ever read, and that is not hyperbole.
    • millsmess: Seconded with enthusiasm! The author clearly devotes enormous effort towards each chapter, with the following results: realistic and sympathetic characterization, a ridiculous amount of creativity which generates new wonder for Harry's magical world, and a sophisticated interweaving of obscure historical facts with genuine invention to create a world with substance. It's worth noting that the plot moves slowly (which I view as a plus, but don't expect constant action). Finally, this story is an adventure; like all real adventures, it takes work. Be mentally prepared for sophisticated wordplay, mind-bending concepts, and poems in foreign languages. This story demonstrates that fanfiction can be an art form.

The Black Prince by cxjenious.

  • Recommended by Meimay, Kogut
  • Status: Dormant; last updated January 2019
  • Crossover with: Game of Thrones
  • Synopsis: He remembered being Harry Potter. Dreamed of it. He dreams of the Great Other too, a creature of ice and death, with eyes red as blood and an army of cold, dead things. He is only the 2nd son of the King, a 'spare', but that changes when things rather left in the dark come to light, and Westeros is torn asunder by treachery and ambition. Winter is coming... but magic is might.
  • Comments: The best crossover of Harry Potter/Game of Thrones you can find on Great characterizations, good writing (sometimes there are still some misspelling but nothing too major) and a great potential, this fic is a must read.

the Winter Witch by writing_as_tracey.

  • Recommended by Stydiabromance
  • Status: Active
  • Crossover with: Game of Thrones
  • synopsis: Hermione realized it began with a sense of Impending Doom and finished with a battle outside her tent. Now, she has to decide between staying and helping Robb Stark and the Northern army or returning to her universe. And that line is getting harder to see the longer she's in Westeros.
  • Comments: A For Want of a Nail that explores does a wonderful job of exploring both Hermione and Robb's world, it also takes the time to explore their relationship with each other and their friends.

The End of the Beginning by Mariner.

  • Crossover with Buffy the Vampire Slayer.
  • Recommended by Kurukami
  • Status: Complete
  • Synopsis: London, 1981. The Dark Lord's reign of terror is at its height, and two Muggles possessed of their own magic, entirely different from that taught in the wizarding world, are about to stumble into the war. Two Muggles named Rupert Giles and Ethan Rayne...
  • Comments: Written a little before the release of Harry Potter and the Order of the Phoenix, Mariner puts forth a plausible alternate history and an entirely believable reason why Lily's sacrifice saved her son. Aside from the how, and the introduction of Buffy-verse magical capabilities, doesn't really depart from the establish canon within the books as released to that point — the fic eloquently provides another history as to how the Potterverse could have gotten to where it is now.
    • And that's just it—it's dreadfully, heartbreaking ironic in places, but it all makes so, so much sense. It's quite well thought out—no loose ends. Not even Peter's books at the very end. And it all meshes—both franchises keep to their canon by the end of it. Honestly, this could have been the way it happened. It's a very natural crossover, even if you wouldn't suspect so.

Harry Potter and Ascension of Ra by Apocalypse Thou

  • Recommended by Magyareagle, Pastykake
  • Status: Dead
  • Crossover with Smallville.
  • Synopsis: Voldemort has been vanquished from power and Harry from Britain. Aiming to start a new life in muggle America Harry moves to what he thinks is a small quiet town to start over. His destiny has just begun. Smallville Xover. Harry Potter/Lois Lane. Begins Season 4
  • Comments: Easily one of the best and most realistic crossovers I have ever seen, this one seamlessly blends a postwar, somewhat troubled Harry with Smallville canon. The writing style is excellent, and better yet, it manages to avoid most of the common pitfalls of the genre. —Magyareagle
    • Caution: Early chapters have Harry on the edge of God-Mode Sue status, but that gets toned down over time. Also Harry and Clark rarely do any superheroing together, which is kind of disappointing.

Harveste Addams by Kyaru

Loss by BiJand

  • Crossover with Doctor Who.
  • Recommended by: IraTheSquire
  • Status: Complete
  • Synopsis: Still affected by the losses of previous years, and by the destined, upcoming death of Dumbledore, the time travellers are again in Hogwarts, a castle victim to a creature which has suffered losses of its own
  • Comments: This is actually the sixth part of a series. Basically think the original Harry Potter timeline being screwed over by events and the 11th Doctor, Amy and Rory trying to fix it. Extremely impressive in the way that it pulls no punches, with Anyone Can Die in effect, with the implications explored. Possibly the best HP/DW crossover that takes into account that Harry Potter is fiction in the Whoverse.

Savior by JoeHundredaire

  • Crossover with Buffy the Vampire Slayer.
  • Recommended by FrodoLives, Looney Toons
  • Status: ? (Dead link)
  • Synopsis: "She's Luke Skywalker. She's here to rescue him." Illyria goes to Hogwarts and chaos ensues.
  • Comments: Very funny, especially the Luna/Illyria interactions. Hints of F/F and poly shipping, but nothing actually explicit.

The Savior and the Scourge by Random Dispatcher

  • Crossover with Buffy the Vampire Slayer.
  • Recommended by: force42
  • Status: Complete
  • Synopsis: Spike comes to Hogwarts to protect the Malfoy heir. He becomes fascinated with the angsty Harry Potter and the wonderful scent the teen exudes. What happens when the Scourge of Europe knocks up the Savior of the Wizarding World? COMPLETE!
  • Comments: This is a fic you can read again and again and laugh ever time. At 20 chapters, it's on the long side, and there are a few spots that drag, but overall, it is worth reading.
  • Warnings: Slash and mpreg (Harry/Spike)

Special Men by sineala

  • Recommended by: Ainyre
  • Status: Complete
  • Crossover with The Professionals
  • Synopsis: It is 1975, the height of the First Wizarding War, and Voldemort's reign of terror has spread far and wide. His followers, the Death Eaters, have begun cursing and killing Muggles. As CI5's brief includes domestic terrorism, the responsibility for stopping Voldemort falls on them — but this is not a fight they can win without magic. For this reason, Ray Doyle, an Auror, is transferred from the Ministry of Magic to join CI5, as its first and only wizard. But his abilities must remain secret from his fellow agents, including Bodie, his new partner. But Bodie seems to have a few secrets of his own, and it especially doesn't help that Bodie is so damned attractive...
  • Pairing: Bodie/Doyle
  • Tags: Slash Fic, Fusion Fic

That Which Holds The Image and sequel The Angel's War by TheAngelsHaveThePhoneBox

  • Recommended by shkspr1048, Smoodle-Fshoodle, AMillionSkies
  • Status: Complete, Sequel Dormant (last updated August 2018)
  • Crossover with Doctor Who.
  • Synopsis: Harry Potter faces a boggart that doesn't turn into a Dementor or even Voldermort, but into a horror from his childhood. Now the boggart isn't even a boggart anymore. There's no imitation. That which holds the image of an Angel, becomes itself an Angel.
  • Comments: Well-written, well-plotted, well-characterized, and very creepy. Not for the faint of heart!

The Trouble With Familiars by amusewithaview

  • Recommended by SailorBoo
  • Status: Dead
  • Crossover with Buffy the Vampire Slayer
  • Synopsis: Dawn winds up in a pet shop - but not as a customer. She joins Slytherin House - but not as a student. She gets a new family - and is it really a surprise that they're just as protective of her as her last one?
  • Comments: This is an amazing fic with a unique premise of Dawn having Shapeshifter Mode Lock and becoming the true Familiar (a mix of familiars and soul mates with a possibility of telepathy) of Draco Malfoy. The timeline is post-Grave with an alive Tara and post-Prisoner of Azkaban, though any specifics are vague. A bit sad due to the fact that it hasn't been updated in many a moon (Read: Last update was in May 2010) and even Word of God says another is unlikely.

Visited by a Doctor by Tangerine-Alert

  • Crossover with Doctor Who.
  • Recommended by: OliverSmillie
  • Status: Ongoing
  • Synopsis: Harry is visited by the Doctor throughout his seven years at Hogwarts, then moving through Harry's life outside school. As Harry takes on both Voldemort and Aliens.
  • Pairing(s): Harry/Daphne in the later chapters. Harry/Ginny for a tiny bit.
  • Comments: Starts out much like the books but with The Doctor appearing here and there. Turns into an AU Story later on as the story references both Harry Potter events and Doctor Who events.

The Immortal and the Revenant by RileyWilliamsJr

  • Recommended by: Phoenix-21
  • Status: Complete
  • Crossover with: Merlin
  • Synopsis: As usual, Merlin has utterly failed in keeping a low profile by inadvertently getting himself dragged into a mess of a situation that appears to have something to do with a seemingly unkillable snake man, a toad woman, an order of phoenixes, and a boy named Harry Potter who, he quickly finds, is equally bemused by his current predicament. When he discovers how lost the boy is, he resolves to help him and his friends get rid of this dark lord - as well as their malignant (and worse, ineffectual) new teacher.
  • Tags: Fix-It, Humor, Friendship


     Tabletop Games 

Harry Potter and the Natural 20 by Sir Poley

  • Recommended by: Amplitude, Ghost Lad, Kogut, Ack Sed, Ronfar, Unclouded TJ, Flairina, Robinton
  • Status: Last updated August 2nd 2018 (as of September 1st 2019).
  • Crossover with: Dungeons & Dragons
  • Pairings: None
  • Synopsis": A low-level, munchkin, 11-year-old (don't ask - his backstory isn't functioning properly) wizard from the Dungeons & Dragons'' universe is summoned by Death-Eaters for some reason. After escaping with his superb skills (actually, mostly luck), he gets enrolled in Hogwarts. Shenanigans, hijinks, and intrigue ensue.
  • Comments: Very good, now finished, with a sequel, Harry Potter and the Confirmed Critical proceeding apace. It's best if you know Dungeons & Dragons, but not necessary; most of the jokes are still funny anyway. I would highly recommend it.
    • Flairina: This troper has never played dungeons and dragons, but has absolutely nothing but good things to say about this. First of all, it is utterly hilarious. Milo (said 11-year-old) is an incredibly enjoyable character, both funny, interesting, and an incredibly fun person to see the story through the eyes of. His mere existence causes ripples in the plot that lead events to go, shall we say, rather differently, and the author reworks events far better than even most For Want of a Nail fics do. The author also has an incredible eye for detail, and while the number of intersecting plots (which manage to maintain a perfect balance of drama and plausibility) would have had other authors rolling on the floor in confusion, this fic ties them all together brilliantly. The plot twists will throw you for a total loop (in a good way), ESPECIALLY at the end of second year, which is where the story is at current. Several times I either laughed or gasped aloud at the CMOF and CMOA moments here, literally falling off my chair laughing at one point. I think, perhaps best of all, is that despite all the awesome moments and danger surrounding the main sort of-quartet (like everyone else, it takes the main Trio quite a while to come to terms with the idea that Milo isn't crazy, and he really IS from a different world), the story retains a sense of wonder and sheer FUN, much as the early Harry Potter books did, that many other fanfics take for granted. I cannot recommend this story enough- read it if you'd like a pick me up, read it if you're looking for a good For Want of a Nail that just happens to also be a crossover, read it if you're looking for an unexpected plot with incredible twists- just, READ it.
  • Link: Harry Potter and the Natural 20

Inquisitor Carrow and the God Emperor-less Heathens by littlewhitecat

  • Recommended by handbasket
  • Crossover with: Warhammer 40,000
  • Status: Complete, sequel out and complete as well
  • Synopsis: The Wizarding World is devastated when Harry Potter disappears from his relatives' house in mysterious circumstances during the summer after his first year at Hogwarts School of Witchcraft and Wizardry. Desperate to have their boy-hero back no matter what they really should have heeded the Muggle saying "be careful what you wish for".
  • Comments: Fusion Fic. This series is absolutely hilarious while at the same time managing to incorporate the things about Warhammer that are quite... unsettling.
  • Trope page for the series here.

     Video Games 

Blue Magic, by Tellur

  • Recommended by Masterweaver
  • Crossover with Mass Effect
  • Status: Dead; last updated February 2019
  • Synopsis: Thanks to a choice conversation with her mother, Liara T'soni is sent to observe a pre-spaceflight culture when she stumbles upon an abused child with the strange ability to teleport. Curiosity causes her to not only save the child, but take him with her to be raised in secret on Thessia. Four years later, a large fire bursts into existence in her living room and out steps a red bird with an acceptance letter from Hogwarts....
  • Comments: Harry and Liara have a heartwarming chemistry from the moment they meet, resembling an elder sister turned mother making the best out of the situation. The reaction to magic is also fairly intriguing, especially when it's revealed the previous cycle had magical races of some sort. And there's an interesting take on magical culture as well: flawed, but not bashing. This promises to be quite an interesting read.

Fusion of Destinies by Grey-X

  • Recommended by: SAMAS, Sparky Lurkdragon, USA Bobcat, Pastykake
  • Status: Complete
  • Crossover with Metroid.
  • Synopsis: A blazing meteorite falls into the forest around Hogwarts, leaving an amnesiac woman called Samantha. Working odd jobs around the school, she finds herself drawn to Harry. But she's here for a reason: A terrible spell that has called forth a weapon from the future... and the one person that can stop it. Crossover with, of all things, Metroid.
  • Comments: Seconding by Sparky Lurkdragon, who's actually coming at this from the other side: Harry Potter really isn't my thing, but I love Metroid. I'd just like to vouch that Grey-X delivers very well on the Metroid side of things, too; in particular, it's very refreshing to see a ficcer acknowledging that Samus is probably more Chozo than human, culturally.

Magic, as opposed to Magic by The Rev. Cardboard Box

  • Recommended by Peloponnese
  • Crossover with: The Elder Scrolls IV: Oblivion
  • Status: Complete
  • Synopsis: Harry Potter was lost, but now is found. The Arch-Mage isn't happy. Harry isn't happy. And they're just the first two people who are going to find The Boy Who Lived's destiny one immense headache...
  • Comments: The story focuses on Harry, the adopted son of the Archmage of Cyrodiil (a pseudo-PC who coexists, but is not actually, the Champion of Cyrodiil), who comes to Hogwarts ignorant of his history and his place in wizarding society. But it also places emphasis on the Archmage himself, whose previous experiences (chronicled in the author's previous works) give him a healthy acceptance of the will of the gods, but a low tolerance for silence and secrecy "for the greater good"... leading to more than a few conflicts of interest between him and the good Headmaster. A study in culture shock for Harry, the Archmage, the Hogwarts students and staff, and the otherworldly powers that look on both at Hogwarts and in Tamriel.

Never Tear Us Apart by Quatermass

  • Recommended by FoxBluereaver
  • Crossover with Darkstalkers
  • Pairings: Harry/Lilith
  • Status: Dormant (last update December 2018)
  • Synopsis: Long ago, part of Morrigan Aensland's power was sealed away. Years later, it fused with Harry Potter's soul in the womb. Now, after the debacle of the Tri-Wizard Tournament, Harry's imaginary friend, Lilith, proves herself to be very real indeed...

Sephiroth Potter by AnnaDruvez

Something Wicked This Way Comes by The Mad Mad Reviewer

  • Recommended by Blaziken 386, Unclouded TJ
  • Status: Complete
  • Crossover with: Disgaea: Hour of Darkness
  • Pairings: Harry/Etna, Luna/Hermione, & Ron/Elizabeth Bulstrode.
  • Synopsis: After fourth year, before Disgaea: Hour of Darkness. With Voldemort's return, Harry, Hermione, and Ron get the bright idea of summoning a demon to help kill the Dark Lord. Except, when the summoning ritual comes from Luna Lovegood, nothing goes the way it's expected.

Tactical Espionage Action Metal Gear Solid Slytherin Eater by Rogue 11

  • Recommended by jakesolong
  • Status: Dead
  • Crossover with Metal Gear.
  • Synopsis: What if Harry Potter got trained by Solid snake at a young age and learns to fight mages and monsters the way Big Boss does. Guns are included. 'If I ever take over the world I'm making a law against that kind of bubbly happiness...' The man with the eye patch thought.
  • Comments This one is an awesome oddball that's funny, well written and worth a read.
    • It is a really good story, well written and funny at many times. Unfortunately, it is a Dead Fic.

Rise of the Dragon Child by Elia41

  • Recommended by auroVee
  • Crossover with: The Elder Scrolls V: Skyrim
  • Status: Dead; last updated February 2020
  • Synopsis: When the True Dragonborn is killed by the Thalmor before uncovering his true nature, Sheogorath comes up with a crazy plan and Akatosh takes some drastic measures. Now, Harry is stuck in a world he knows nothing about, with nothing to his name but a pair of glasses and a black dragon that wants him very dead. What a start..."
  • Synopsis: Harry, when running away from home at the beginning of the third year, is taken away by Akatosh into the land of Tamriel, as replacement for the True Dragonborn, who was killed by the Thalmor. Harry ends up being chosen thanks to the fact he already has a second soul inside him, and thus could have it replaced with a dragonic soul. This leads to him going through the events of Skyrim, but with a lot of changes, most of them being the fact that the Dragonborn is but a teenager, and the realistic outcome happens.
  • Comments: A well written fic which, as of the time of writing, is currently only 21 chapters long with 78 thousand words, but it makes Skyrim more realistic, along with a few major changes, such as the fact that Harry is able to convince both sides of the cival war to leave Whiterun - which was his new home in Skyrim - out of the war, potentially sparing the Jarl from being killed should the story take the Stormcloak side of the war. Also, Paarthurnax plays a much bigger role, as he ends up being the one to bring Harry to High Hrothgar, and ends up being a good teacher of Dovahzul, the Draconic tongue.

Dark Defense by kyugan

  • Recommended by: Agent_B
  • Status: Dead (last updated May 2018)
  • Crossover with: Devil May Cry
  • Synopsis: Before Fudge can appoint Dolores Umbridge as the new DADA Professor, Dumbledore seeks out a candidate of his own. And after all, the best tutors against the Dark Arts are those who are Dark themselves… 5th Year

Death's Fixer by Browncoat-Valentine-335

  • Recommended by Victorio M Wolff-Haddock
  • Status: Ongoing
  • Crossover With: Cyberpunk 2077
  • Synopsis: With only weeks left to live, V enters the Afterlife for information on the man who built the chip that's killing her. Little did she know, someone else was also looking for Hellman. Harry Potter is as chaotic as they come, with magic and death following in his wake.

     Web Animations 

Helluva Wizard by DWAR

  • Recommended by EnigmusPrime, Victorio M Wolff-Haddock
  • Crossover with: Helluva Boss
  • Synopsis: I.M.P. are hired to kill the Dursleys, finding the abused Harry Potter while there; they decide to adopt the young boy. Years later when Harry returns to Hogwarts, things are going to be vastly different.

     Web Series 

Harry Potter: Vel'ilstaer: Storm Raven by darksider82

  • Recommended by: Victorio M Wolff-Haddock
  • Crossover with: Critical Role
  • Status: Ongoing
  • Synopsis: Keyleth and Vax had a child. But then someone took it away.

     Western Animations 

Duality, Beneath Between Beyond by AvacadoLove

  • Recommended by Blue Hospitality
  • Crossover with Avatar: The Last Airbender
  • Status: All Complete
  • Synopsis: An accident with two linked vanishing cabinets transports Prince Zuko and Draco Malfoy into a place between their two worlds. To escape they need to learn to work together, and it may turn out that the two aren't very different after all...

Four's a Crowd by Kenya Starflight

Of Slings and Arrows by the original Pe

  • Crossover with X-Men: Evolution
  • Recommended by: Omeganian
  • Status: Complete
  • Synopsis: Harry is sent to Azkaban for murdering his relatives. After some time, Professor Xavier pulls him out. Later, Dumbledore wants the mutants to help him, so they go into Hogwarts - and Harry is without disguise.
  • Comments: Old and good. Not too cliche.

The Unicorn At Hogwarts by Saphroneth

  • Recommended by Clato Lawa, Robinton
  • Crossover with My Little Pony: Friendship Is Magic
  • Synopsis: After discovering that her brother's fiancee Cadence is not who she appears to be, Twilight Sparkle is sent to another world entirely by the disguised Changeling Queen to avoid her plan being disrupted. When Twilight lands, she discovers that not only have her assistant Spike, her pet owl Owlowiscious and Spike's pet phoenix Peewee followed her, but that they've arrived in a world where the main sentient species is human. There's still a place where they teach magic, though.
  • Note: An alternate universe take on the books, in which Hermione has gone to Beauxbatons instead and Twilight takes her place in Harry's adventures.
  • Status: Incomplete, last update in July 2014.

     Mega Crossovers 

Child of the Storm by Nimbus Llewelyn (link)

  • Recommended by SuperTulle, Dame-Amaryllis
  • Crossover with the Marvel Cinematic Universe with elements of multiple continuities of Marvel Comics, initially. Later verges on Mega Crossover territory, with additional elements taken from DC Comics, Good Omens, and The Dresden Files. Somehow remains remarkably accessible, if only because Harry's the Audience Surrogate and thanks to the author's habit of providing explanations of characters on request.
  • Status: Complete, with a sequel and two side-stories.
  • Synopsis: New Mexico was not the first time Thor had been a mortal. It was only a refinement of the technique. What if James Potter had been Thor, incarnated as a memoryless newborn? On his death, Odin removed his memories as James, due to grief. In Harry's Third Year, a reformed Loki restores them. Harry now has a father, a family and a heritage that is going to change the world. Forever.
  • Comments: Very, very good. While it's more of a Family/Humour fic early on and occasionally slips into borderline crack territory, there's an abrupt tonal shift around chapter 9 - the humour remains, but it gets much more serious. The characterisation is generally spot on, it puts unique spins on familiar characters, even fusing a few (e.g. Peter Wisdom is really Regulus Black) and giving a few unexpected prominence (Lucius Malfoy, for instance). The plot is complex with frequent twists and liberal use of Foreshadowing and a well stocked Chekhov's Armoury, and most of all, thanks to the Lemony Narrator it is very, very funny. It plays with Black-and-Gray Morality, with even the best of the good guys having their flaws and darker sides, Loki's past not simply being glossed over despite his redemption, and there's a massive dose of Parents as People.
    • While there's a carefully designed In-Universe plan involved (lots, in fact - it's possible the only work with its own Gambit Pile Up page), the fic is very heavily character driven, with a lot of exploration of various characters' personalities, outlooks, and psychological issues, and how all of those drive their actions and thus the plot. At first, this led to a lot of excessive introspection, and given the sheer size of the cast, it drags the first book out far longer than it necessarily needed to be. However, as the writing improved and the navel-gazing was trimmed, it became more of a plot engine and route to develop a whole stable of characters, even reconstructing the classic Romance Arc (though per Word of God, that was a complete accident).
    • Particular emphasis is placed on Harry's Character Development, with the concept of the fic being, essentially, how Harry would really react to the premise of a typical Super!Harry fic, real parents, superpowers, and all. The answer is that it's all a lot messier and more complicated than such fics usually have it be - he's got a mound of abandonment issues, the powers are both delayed and inclined to blow up in his face, and while he does get more assertive and confident with time, he's still a shy dork around girls. Additionally, given what he goes through, things like his PTSD from Order of the Phoenix crop up much earlier than canon and are much, much worse.
    • However, the entire series is about 1.9 million words and rising,. A wordy style, a massive cast with a Switching P.O.V. used to make sure everyone gets a Day In The Lime Light, and (until around chapter 40) the aforementioned introspection all contribute to this. The second book is more streamlined, with more of the word count focused on action and plot, but it's still nearly a million words long.
    • A regular complaint is that by about a third of the way through every character is related/had past dealings with ten other characters, to the point of One Degree of Separation. This is lampshaded at several points, before The Reveal that Doctor Strange has been steadily arranging events to forge the superhero community into a united front to face Thanos. Despite the author claiming that he doesn't like OP characters, a better description would be that he doesn't like one side being OP. The action steadily scales up throughout the story. Another complaint is that it suffers from nigh-omniscient villains, while the heroes are relatively clueless and spend much of the time stumbling around in the dark - this is explained, but also toned down in the sequel.
    • To some, the above points are part of the appeal. To others, they make it slow, cluttered and convoluted. In summary? It's very good, very readable and deservedly very popular, but it's not a series for everyone.

Hogwarts Rejection Letters by Midnighter 13

Hogwarts Rejection Letters by Sweet Kagamine Kiss

  • Recommended by feral
  • Status: Dead (last updated March 2015)
  • Mega Crossover with Slayers, WWE, Touhou Project, Vocaloid, Star Wars, Naruto, NCIS, and FLCL.
  • Pairings: Depending on the story Harry/Hermione, Harry/original female characters, Harry/original male characters, Sirius/original female character
  • Synopsis: A folded parchment written in green ink appears, sealed by a wax coat of arms of a griffin, badger, raven, and snake. It reads "Dear Mister Potter..." However, Hogwarts School of Witchcraft and Wizardry receives a rejection letter in reply, with each reply written by a different Harry Potter.

The League of Interdimensional Heroes by The 1597 Faceless Writer

Game of Thrones and the Heroes of Old by ranma71016

The Lone Traveler by The Professional & dunuelos