History OnlyKnownByTheirNickname / FanWorks

* ''[[https://archiveofourown.org/works/52083598/chapters/131726215 The Candygirl]]'': Firecracker, formerly known as Numbuh 451. While the narration does reveal her name at one point (Ava Baros), no one, narration included, ever calls her that.

* In the ''LightNovel/FateZero'' fic ''Fanfic/TheSagesDisciple'', the main character has IdentityAmnesia, so he starts calling himself Crow after being called "Karasu-san" in chapter 1.

*** Aoi, as revenge for the "Madame Pain" nickname, stuck the BackAlleyDoctor with the nickname "[[TheigLebowski Doctor Dude]]". An omake implies that [[spoiler:he is [[VideoGame/DigitalDevilSaga Heat O'Brien]].]]

* ''Fanfic/RaisedByJagers'' has Ducky, to the point where referring to herself as Evdokia in front of a lie detector will make it go off.
* In the ''WesternAnimation/ThomasAndFriends'' fanfic ''[[https://www.fanfiction.net/s/13886379/1/The-New-Engines-A-TTTE-AU-Story-Collection The New Engines]]'', [[WesternAnimation/JourneyBeyondSodor Hurricane's]] real name is Holden (A reference to James Holden, the creator of the GER Class A55 Decapod (Hurricane's Basis)). He's called Hurricane because people thought he was fast as the winds of one.
* In ''Fanfic/IncarnationOfLegends'', the narrative goes to great lengths to specifically refer to the Servants-turned-adventurers by their aliases rather than their True Names to keep their identities a secret until Kojiro introduces them in-person, [[SubvertedTrope upon which Kojiro will refer to them by name rather than by their title]]. The only exceptions to this are Ryoma and Oryou, whose aliases are only revealed after they meet Bell. Even the Legiones, [[spoiler:Romulus-Quirinus]], gets in on this, referring to the Asura by his alias and declining to mention his real name to avoid "ruining the surprise" for him and Bell.
* ''Fanfic/{{Boldores and Boomsticks}}'': Nox, as Ruby's Zubat/Crobat is called, is never referred to as Nocturne after the name is given. Not even the narrator calls him that.
* ''FanFic/WithPearlAndRubyGlowing'' is set in a rape survivors' support group in which everyone uses a nickname. This serves the in-universe purposes of helping to prevent abusers or stalkers from tracking group members down, preventing other group members accidentally revealing secrets people don't want getting out, and helping boost confidence by picking an appropriately cool MeaningfulRename. On this side of the fourth wall, it's a MassiveMultiplayerCrossover massive enough to shatter the OneSteveLimit, so it helps keep track of who's who.
* ''Fanfic/InfinityTrainBlossomingTrail'': The ruler of the Curry Car is called either "The Curry Prince" or "Clockwork Prince". Justified in this case because his true name [[spoiler:Soma Asman Kadar]] is only remembered by the elderly as said Prince has ruled for over a hundred years. The only reason that Chloe knows that name is because she's actually aware of the source material for them.
* ''Fanfic/RiseOfTheMinisukas'': The titular characters are Lilliputian-sized versions of Asuka, and they are named after some particular trait or job: Leader, Professor, Hacker, Prankster, Blue, Blonde, Camo (because she wears camouflage), Hood...

* ''Fanfic/{{Eleutherophobia}}'' has [[OCStandIn Bountiful Sunshine Park]], better known as Bonnie. According to [[FirstPersonSmartass Tom]], her parents were "whacky hippie atheists". Tom himself is only called Thomas by strangers trying to be formal.
* ''FanFic/TheImmortalGame'' has [[TheAlcoholic Sir Unimpressive]] and his ArchEnemy [[MookLieutenant the Cadet]].
* The ''FanFic/{{Horseshoes and Hand Grenades}}'' sidestory ''Month of Sundays'' has the Rainbow Serpent. She later reveals her name, [[spoiler:Ayida-weddo]], but the story and the other characters (minus Mari) still refer to her as Rainbow Serpent.

* Fan stories of ''Literature/TheLordOfTheRings''
** In ''FanFic/HomeWithTheFairies'', Maddie almost never uses her full name, Madeline Greene, after she [[TrappedInAnotherWorld falls into Middle-earth]]. There none can guess that Maddie is short for Madeline.
** In ''FanFic/HowToSurviveInMiddleEarthWhenYoureATeenagedGirl'', Priscilla Henders changes her name to Cilla, so others can say it. Priscilla is from Texas, and her name is foreign to Middle-earth.
* In ''FanFic/MegaManReawakened'', Roll's full name is Rebecca Light, but everyone calls her Roll.

* Jacob Arrow from ''FanFic/ANewWorldANewWay'' sidestory ''Swarm'' prefers to be referred to by X. Also counts as a OneLetterName.
* In ''RolePlay/WeAreAllPokemonTrainers'', about 80% of the cast goes by a nickname of some sort, either due to personal preference or to protect their identities.
* Commander Tess Phohl's real first name "Tesjha" is only rarely used in ''Fanfic/{{Bait and Switch|STO}}''. "Fanfic/TheUniverseDoesntCheat" reveals that "Tesjha Phohl" is itself a shortened form of "Siritesjha sh'Phohlhi".
* Hilariously done in ''[[https://www.fanfiction.net/s/3401052/1/A-Black-Comedy A Black Comedy]]''. Until TheReveal near the end of the story, the mysterious wizard constantly interfering with Voldemort's plans is only known by the name Voldemort gives him: That Fucker.
* Ranger Fink of ''FanFic/TheHamsterballShow''. Her real name is ''Rachel'' Fink. Only [[TheProfessor Mr. Raptis]] calls her by this name.
** Another nickname of Ranger Fink's is simply "the Fink," which is used interchangeably with "Ranger Fink" by the narrator.
* According to Webcomic/KillLaKillAU, Ryuuko is mostly called "Ryuu" by mostly everyone she knows and "Repeat Offender" by the cops. Likewise, we have Seiji, who's real name is "Shinseiji" and her nickname tends to be used more than Ryuuko's. According to ''Meaningful Name'', not very many people know Sukuyo's real name and she is mostly called by a childhood nickname of "Turtle".

* In ''Fanfic/SoulEaterTroubledSouls'', the real name of Kilik Lung is Kirikou, but everyone calls him Kilik instead. The writer probably did this to acknowledge both the original and the dub name of the character.
* In the ''Series/StargateAtlantis'' fanfic ''I See the Stars,'' leisians usually have short names; so when Earth-born, half-leisian Adelaide Weir starts to integrate into the society, she has to find some way to shorten her name. She chooses her old nickname "Ada" and is known as Ada Weir to the point it becomes part of her identity.
* Annie Stelman from the ''Series/CriminalMinds'' fanfic "To live again" is actually named Annelise Stelman but nobody ever calls her that.
* The ''Anime/YuGiOh'' fic “[[https://www.fanfiction.net/s/12865317/1/YU-GI-OH-8th-millennium-item Yu-Gi-Oh! 8th millennium item]]” introduces the Red-Eyes Queen, a duelist known for favouring the use of the Red-Eyes Black Dragon in her duels, to the extent that most of her deck is dedicated to cards focused on supporting the Red-Eyes Black Dragon, including various monsters chosen for their ability to merge with or support the Red-Eyes. She constantly wears a helmet based on the Red-Eyes and there is never any indication that anyone even knows her real name, simply referring to her by her title, even among older friends such as Seto Kaiba.
* In one chapter of ''Fanfic/TheRacketRotterChronicles'', Annette finds medication prescribed to "Dennis Racket Jr." [[spoiler: Better known as Shark.]]
* The ''[[FanFic/{{Cinderjuice}} Contractually Obligated Chaos]]'' series has the {{original character}}s of the Fairy Godfather and Lady Delphine. These are almost certainly not their real names - the second story more or less says as much for Delphine - but no one has any idea what their real names might be. Among the canon cast members, it's not widely known that Donny's real first name is actually Dobsonfly.

* In ''WebVideo/SwordArtOnlineAbridged'', poor Klein got trapped in the titular game as a test character he named [[EmbarrassingNickname BallsDeep69,]] so [[{{Jerkass}} Kirito]], his enemies, and [[FunWithSubtitles even the subtitles]] refer to him by his handle, or as "Balls" or "Ballsy." By the third episode his guildmates think "My name is Klein!" is just how he says hello, and react in confusion when Kirito [[YouCalledMeXItMustBeSerious actually calls him Klein for once.]]

* ''FanFic/ThePiecesLieWhereTheyFell'': The true names of the original Mane Six have long since been forgotten, and they're now known by the nicknames they earned after their deaths: ''the Stallion of Dedication'' (yes, even the ''gender'' of one has been forgotten - [[spoiler:she's later revealed as Applejack, who explains the "stallion" part is because ponies mixed up her and her brother]]), ''the Lady'' [[spoiler:(Rarity Belle)]], ''the Wise Oracle'' [[spoiler:(Pinkie Pie)]], ''the Warrior'' [[spoiler:(Rainbow Dash)]], ''the Stern Warden'' [[spoiler:(Fluttershy)]] and ''the Magi of Stars'' [[spoiler:(Twilight Sparkle)]]. Another character whose real name has been forgotten is ''the Blue Sorceress'' [[spoiler:(actually Trixie Lulamoon)]], an enemy of the Magi of Stars.

* Several examples found in ''Fanfic/XMenTheEarlyYears'':
** As visiting Paris in "Hit Women, Goats, and Other Vacation Blunders", Jean catches a purse-snatcher. Hank calls him "Eiffel", and that's what he's called throughout the story.
** In "Twinkies, Holdups, and Other Things That Aren't Good For You", a Satanist is given no name. He's just "the guy in the 'Satan Rules!' T-shirt".
* ''Fanfic/AllGuardsmenParty'': The Guardsmen are all known only by their nicknames - Sarge, Doc, Heavy, Cutter, Nubby, Twitch, Tink. [[spoiler:Eventually Sarge's name is revealed - it's Greg Sargent.]]
** There's also one unnamed Interrogator, later an Inquisitor, who's only known as the Rupert, and his batman, who is christened [[Franchise/{{Batman}} "Alfred"]] by the party.
** And then the Inquisitor who's their boss, who's only referred to as [[Franchise/{{Pokemon}} Professor Oak.]] [[spoiler:His real name is eventually revealed by the diplomacy adept to be Quercus, which means... Oak.]]
** Averted by Aimy, whose name is eventually revealed to be [[spoiler:a contraction of her OverlyLongName, Amelia [[Literature/{{Discworld}} Delorisista Amanita Trigestrata Zeldana Malifee von Humpeding]]]].
* Because Ryuuko didn't know her name, Satsuki, in ''Fanfic/TheOutside'', is usually referred to as "Sis". This actually comes up in one chapter, when she, Shiro, and Nui finds letters addressed to Satsuki and she's left confused as to why, before Shiro points out that "Satsuki" is her real name because "Sis" couldn't used on any legal documents.
* This is used as a plot point in ''Fanfic/TheTouchOfGreenFire''. When Ann needs to try and see how conscious Shego is, she asks Drakken what her real name is. The problem is that not even Drakken knows. Everyone, including her own brothers, calls her "Shego." In college Shego went by "Shannon", but that's explicitly not her actual name.

* The ''My Little Pony'' fic ''Fanfic/{{Eternal|MLP}}'' has baby ponies' names (such as "Baby Firefly" and "Baby Gusty") actually being nicknames that they outgrow when they're older.
* In the ''Robotboy'' fic ''Fanfic/HumanAfterAll'', Lola's full name is "Yolanda Mbola". But everyone just knows her as "Lola".
* Downplayed in ''Fanfic/MyHuntsmanAcademia''. Izuku is only known as "Deku" to much of Beacon's student body because of Cardin's and Katsuki's antics. He just gets waved off when he tries to provide his real name. At the same time, most of his friends refer to him by his real name and only Ruby and Coco call him Deku ([[AppropriatedAppellation in an affectionate way]]).
* In the oneshot ''[[https://www.fimfiction.net/story/173969/a-great-and-powerful-legacy A Great and Powerful Legacy]]'', Twilight finds out that Starswirl has a living descendant her age named Beatrix Lulamoon. Only upon paying Beatrix a visit does Twilight realize that they've already met. Beatrix is the Great and Powerful Trixie.

* In ''Fanfic/AbsolutePowerSucksAbsolutely'', Maria is the only one who ever refers to Maxime by name. Everyone else knows him as "the Miracle Man", "the Wishmaker", "the Saint of Crime Alley", "Jesus", or "Deus Ex". At one point, he's so peeved by this that [[spoiler:he begs Charles, aka Kite Man, to just call him by his name rather than worship him as the Wishmaker after restoring him to life.]]
* Just like his canon counterpart, though he does have a full name, everyone in-universe simply calls [[VideoGame/PokemonBlackAndWhite Natural Harmonia]] either "N" or "N-kun" in ''Fanfic/TokimekiPokeLiveAndTwinbee''.
** The same also applies to the OriginalCharacter Elesis Kashiwagi Kousaka, who is usually called either called "Ellie" or "Ellie-chan".
* ''Fanfic/GymLeaderWiki'':
** Red's name is not really "Red". That's just what the media knows him as.
** Blue's name is "Gary", but he's been called "Blue" since childhood because he really likes the color. Most know him as such, but his birth name is also frequently cited thanks to internet memes.
** The male Johto protagonist is only known as "Gold" to the press.
* ''Fanfic/ADiplomaticVisit'': [[spoiler:The Alpha, supreme leader of the Packlands. He is only ever referred to by that title, having cast aside his real name before the Royal Sisters became ruler of Equestria.]]

* ''Fanfic/InfinityTrainBlossomingTrail'': The ruler of the Curry Car is called either "The Curry Prince" or "Clockwork Prince". Justified in this case because his true name [[spoiler:Soma Asman Kadar]] is only remembered by the elderly as said Prince has ruled for over a hundred years. The only reason that Chloe knows that name is because she's actually aware of the source material for them.

* Almost everyone in ''FanFic/TheGift'', is known by a nickname, usually based on their regular name: Johanna Josephine "[=JoJo=]", Louisa Lively "L.L.", and William "B-4" Bates the Fourth, Guinevere Elizabeth "Lizzi" Bates, William "Bill" Bates the Third, Catherine "Cathy" and Amelia "Amy" Rockford, Lilian "Lily" Huysmann, et al. Only Paul and Dawn Ryan don't, likely because they already have one-syllable names.

* ''FanFic/WithPearlAndRubyGlowing'' is set in a rape survivors' support group in which everyone uses a nickname. This serves the in-universe purposes of helping to prevent abusers or stalkers from tracking group members down, preventing other group members accidentally revealing secrets people don't want getting out, and helping boost confidence by picking an appropriately cool MeaningfulRename. On this side of the fourth wall, it's a MassiveMultiplayerCrossover massive enough to shatter the OneSteveLimit, so it helps keep track of who's who.

* ''Fanfic/{{Boldores and Boomsticks}}'': Nox, as Ruby's Zubat/Crobat is called, is never referred to as Nocturne after the name is given. Not even the narrator calls him that.

* In LightNovel/FateZero fic Fanfic/TheSagesDisciple, the main character has IdentityAmnesia, so he starts calling himself Crow after being called "Karasu-san" in chapter 1.
* ''FanFic/ThePiecesLieWhereTheyFell'': The true names of the original Mane Six have long since been forgotten, and they're now known by the nicknames they earned after their deaths: ''the Stallion of Dedication'' (yes, even the ''gender'' of one has been forgotten - [[spoiler:she's later revealed as Applejack, who explains the "stallion" part is because ponies mixed up she and her brother]]), ''the Lady'' [[spoiler:(Rarity Belle)]], ''the Wise Oracle'' [[spoiler:(Pinkie Pie)]], ''the Warrior'' [[spoiler:(Rainbow Dash)]], ''the Stern Warden'' [[spoiler:(Fluttershy)]] and ''the Magi of Stars'' [[spoiler:(Twilight Sparkle)]]. Another character whose real name has been forgotten is ''the Blue Sorceress'' [[spoiler:(actually Trixie Lulamoon)]], an enemy of the Magi of Stars.

* At [[Fanfic/SkyholdAcademyYearbook Skyhold Academy]], Coach Bull is only known as Coach Bull. No one is ever heard to call him anything else and the kids all just accept that this is his name. Being a human version of [[VideoGame/DragonAgeInquisition the Iron Bull]], he has another name (per WordOfGod) but it has yet to be revealed in the narrative.

* In the ''WesternAnimation/ThomasAndFriends'' fanfic [[https://www.fanfiction.net/s/13886379/1/The-New-Engines-A-TTTE-AU-Story-Collection The New Engines]], [[WesternAnimation/JourneyBeyondSodor Hurricane's]] real name is Holden (A reference to James Holden, the creator of the GER Class A55 Decapod (Hurricane's Basis)). He's called Hurricane because people thought he was fast as the winds of one.

* ''Fanfic/{{Boldores and Boomsticks}}'': Nox, as Ruby's Zubat/Crobat is called, is never referred to as Nocturne after the name is given. Not even the narrator calls him that.
----

* In the [[WesternAnimation/ThomastheTankEngine Thomas The Tank Engine]] fanfic [[https://www.fanfiction.net/s/13886379/1/The-New-Engines-A-TTTE-AU-Story-Collection The New Engines]], [[WesternAnimation/JourneyBeyondSodor Hurricane's]] real name is Holden (A reference to James Holden, the creator of the GER Class A55 Decapod (Hurricane's Basis)). He's called Hurricane because people thought he was fast as the winds of one.