[[folder: ''Comic Strip/Calvin And Hobbes'' ]]

* Though ''Fanfic/CalvinAndHobbesTheSeries'' is specifically stated to take place sometime after the original strip, it still manages to get a few of these.
** [[SummerCampy "Camp Blues"]] is a sequel of sorts to a fake ''CalvinAndHobbes'' [[http://www.fanfiction.net/s/2157596/1/Calvin_and_Hobbes_The_Movie movie fic]] [[OldShame the author had made]] (and later [[http://www.fanfiction.net/s/3608438/1/Calvin_and_Hobbes_The_Movie_REWRITTEN remade]]).
** The title of "Wild Movie" references another one of the author's Calvin fics - [[http://www.fanfiction.net/s/2282262/1/Calvin_and_Hobbes_Wild_Movie_Collection "Wild Movie Collection"]], in which the duo act out various action movie scenes. Calvin himself mentions it in-story as well.
** A good amount of the {{Original Character}}s are from the author's earlier fics, which may cause some confusion for new readers.


[[folder: Cross Over ]]

* In the ''Manga/DeathNote'' and ''TheHouseOfNight'' {{Crossover}} ''Fanfic/NoHoper'' Light is very skilled at fencing and swordplay. In ''How To Read 13'', [[AllThereInTheManual the manual for the Death Note series]], Ohba and Obata state that they were originally going to have Light and L be fencing masters and do a fencing duel before they ultimately [[WhatCouldHaveBeen settled for tennis instead.]] Also Light's new surname, [[GoToAlias Asahi]], came from the canon as an alias used by both Light and Soichiro during the Kira investigation.
* There are numerous references to dialogs and quotes from AceCombat video games in ''Fanfic/AceCombatTheEquestrianWar''.
* In chapter 10 of ''[[http://www.fanfiction.net/s/5355448/10 Port-Ed]]'', as the Eds are about to incinerate the Curiosity Core, Ed states that it will be just like Narbacular Drop. Narbacular Drop was the student project that eventually became ''{{VideoGame/Portal}}''.
* Shinnok's understanding of the universes he handles leaves us with plenty of these in the [[FanFic/NewLookSeries New Look Series]], such as Sonic's hydrophobia, or Ash's memories of the Ashley incident.
* The Naruto/TMNT crossover ''Fanfic/TeenageJinchurikiShinobi'' has Raphael in a tag team with Hyuuga Neji against Kidomaru, a sound ninja who has spider-like properties. In the 2012 series of TMNT, Spiderbytez was a result of Raph's anger problems.
* In ''FanFic/TheCaptainOfTheVirtualConsole'', the Pokemon arc, despite being an adaptation of Pokemon Yellow, has some post-Gen 1 elements, like Berries and Johto Pokemon.


[[folder: ''Western Animation/Danny Phantom'' ]]

* Apparently, the creator of the ''FanFic/FacingTheFutureSeries'' decided to use the original concept of Danny and Sam have a PsychicLink.


[[folder: ''Manga/Death Note'' ]]

* In ''FanFic/ACureForLove'' when Light is giving L [[OverlyLongGag his long list of ex-girlfriends]] he mentions [[CanonForeigner Shiori]], Light's girlfriend in the ''Manga/DeathNote'' live action movies and Kimiko the MisanthropeSupreme villainess of the AlternateContinuity spin-off ''Film/LChangeTheWorld''.
* In the [[AlternateUniverseFic AU]] ''{{FanFic/Ragnarok}}'' L sets up his new headquarters at the Yellowbox Warehouse.


[[folder: ''Franchise/Final Fantasy'' ]]

* FanFic/TheTaintedGrimoire has two:
** One is Kain Kimahri, whose name is made up of Kain and Khimari, from VideoGame/FinalFantasyIV and VideoGame/FinalFantasyX, respectively.
** The other is to do with Clan Tourneys. The Clan Tourneys shown are one-on-one duels, unlike the six-on-six shown in the games. It is mentioned that the Clan Tourneys used to be like the games but starting with the one we're shown, a format change was made to give smaller clans a chance against the larger ones.


[[folder: ''Literature/Harry Potter'' ]]

* ''Fanfic/KnowledgeIsPower'': As is customary for the author, Mr and Mrs Granger are called [[Creator/DanielRadcliffe Dan]] and [[Creator/EmmaWatson Emma]].


[[folder: ''Jackie Chan Adventures'' ]]

* In ''Fanfic/QueenOfAllOni'', Jade creates a set of magic fans she can use in battle, a reference to the series' opening sequence, where she has a pair of fans.


[[folder: ''Franchise/Lyrical Nanoha'' ]]

* In ''[[Fanfic/GameTheory Power Games]]'' Alicia mentions a story about a princess who slept for centuries after her kingdom was destroyed, which is referencing [[Audioplay/StrikerSSoundStageX Ixpellia]] [[spoiler:and serves as {{Foreshadowing}} for her early appearance in in the story.]]


[[folder: Western Animation/My Little Pony Friendship Is Magic ]]

* [[http://www.fimfiction.net/story/73406/rainbow-in-the-dark There's so many]] in the fic ''FanFic/RainbowInTheDark'' that the [[WordOfGod author]] and [[WordOfDante editor]] released [[http://www.fimfiction.net/story/73406/9/rainbow-in-the-dark/extras-trivia-and-other-information a special chapter full of trivia and extras.]]
* ''FanFic/{{Anthropology}}'': Lyra's birth name was Heartstrings, but she prefered the name Lyra, since it was more of a [[AerithandBob human name.]] A reference to the fact that when her toy first came out, it was named Heartstrings, but the fans prefered the name Lyra, and thus she renamed as such.

[[folder: ''Naruto'' ]]

* In the fic ''FanFic/DeadGarden'', where [[ForWantofaNail instead of Naruto, is Sakura the one with the Nine Tails sealed within her]] Chapter 2 states that both Sakura and Kakashi are fans of the "Gutsy Shinobi" books series, and Naruto hating them all 'cause people keep comparing him with the Naruto from the book (which ironically would be the canon Naruto since one of them is titled "Gutsy Shinobi [[NarutoTheMovieNinjaClashInTheLandOfSnow Clash In The Land Of Snow")]] It has become some sort of RunningGag given that these books are mentioned at least once in every chapter afterwards.
* In ''Fanfic/KitsuneNoKenFistOfTheFox'', the code-names that the [[TheDreaded Kyuushingai]] use to identify each other are references to the Bijuu each of them hold in the main series--more specifically, the Biijus' actual names. For example, Naruto is known as "Kurama the Fox"; in the main series, Kurama is the name of the Kyuubi, whose form is that of a fox. Naruto lists off all the names in Chapter 3 to prove he is a former member of the Kyuushingai.


[[folder: ''Franchise/Sailor Moon'' ]]

* In FanFic/ANewOrder [[spoiler: Zoicite]] dies when he's reduced to a charred, blackened skeleton. This was what happened to Jadeite in the manga.


[[folder: ''Franchise/The Smurfs'' ]]

* ''Fanfic/EmpathTheLuckiestSmurf'' : Narrator in "Empath's Wedding" recites a modified version of his Gargamel battle sequence speech from ''Film/TheSmurfs'' during a similar one in the Imaginarium, with Grouchy reacting the same way.
-->'''Narrator''': There comes a time when every Smurf must stand up for what is good and cute and blue in the world. And on this very night before Empath and Smurfette's wedding, that time is now!
-->'''Grouchy''': Hey, seriously?
-->'''Narrator''': Sorry, it's kind of what I do.
** Jokey in "Empath The Bandit Smurf" (an adaptation of "The Jewel Smurfer") lampshades that he should have been the one who was lost and taken instead of Empath, since that's what happened in the original story.


[[folder: ''Spider-Man'' ]]

* In the original {{Spider-Man}} comics, Peter Parker would sometimes sarcastically observe that "the old Parker luck is running true to form" whenever his ButtMonkey status came back to bite him. In ''[[FanFic/UltimateSpiderWoman Ultimate Spider-Woman: Change With The Light]]'', Mary Jane Watson is much more of a ButtMonkey than Peter, and so she makes the same references to "the old ''Watson'' luck" when things go badly for her as well.


[[folder: ''Franchise/Star Trek'' ]]

* ''Fanfic/ReimaginedEnterprise'': All the time. One example is that, in a flashback showing the Eugenics Wars, Khan Noonien Singh's fanatical supporters shout their leader's name as a war cry...so in other words, "''[[Film/StarTrekIITheWrathOfKhan KHAAAAAAAAAN!]]''"
* Chapter two of ''Fanfic/{{Bait and Switch|STO}}'' has a mention of Eleya straightening the hem of her uniform jacket as she gets out of her chair on the bridge, something Creator/PatrickStewart did all the time that got nicknamed "the Picard Maneuver".
* ''Fanfic/LegacyOfChRihan'' borrows Nero's "Hello, Christopher, I'm Nero" line from the 2009 ''Film/StarTrek'' movie, only here it's Commander Saeihr t'Ethian he's talking to.
* ''Fanfic/RealityIsFluid'': Given that the first part of the story is set on or near Deep Space 9, commanded by Captain James Kurland, the author couldn't help throwing in a [[MemeticMutation "Kurland here"]] in one conversation.[[labelnote:*]]A meme internal to ''VideoGame/StarTrekOnline'', deriving from Kurland's voice acting in the mission "Boldly They Rode".[[/labelnote]]
* ''Fanfic/TheWrongReflection'' has Eleya mention she can't stand [[Series/StarTrekTheNextGeneration Earl Grey tea]].


[[folder: ''Series/The Walking Dead'' ]]

* Shane's reaction to [[spoiler:murdering Rick]] in ''[[http://www.fanfiction.net/s/8737926/1/The-Walking-Dead-Better-Angels Better Angels]]'' is a lot colder than Rick's reaction [[spoiler:to murdering Shane]] in canon. However, there is a sentence that references the scene where Rick blames Shane for taking things this far, where Shane imagines [[spoiler:Rick's corpse]] shouting this at him.
-->'''Rick''': You did this! Not me! NOT ME!