* There are two sets in ''FanFic/AkatsukiKittenPhoenixCorporationOverhaul'', working under the author:
** The three main girls: Goldstone (the Superego), Diamond (the Id), and Opal (the Ego).
** If we go with the three highest rankings, however: Goldstone (Ego), Opal (Id), and Chimera (Superego). The author implies that Opal and Chimera used to be reversed, however.
* From ''Fanfic/ConstantTemptation'' are [[TheMcCoy Mello]] (the Id), [[TheKirk Matt]] (the Ego), and [[TheSpock Near]] (the Superego).
* ''Fanfic/EmpathTheLuckiestSmurf'': The PowerTrio of the three BadAss Smurfs: Tuffy (Id), Duncan [=McSmurf=] (Superego), and Hefty (Ego).
* Subverted in ''FanFic/FirstTrySeries'' with Team 7. Kakashi tried to see them as this, thinking they mirrored his own team but is dead wrong. Naruto hates both his teammates, Sasuke is anti-social and abrasive and Sakura sides with Sasuke no matter the situation. So basically Sasuke is TheSpock but there is no "[[TheMccoy Mccoy]]" or "[[TheKirk Kirk]]" to keep him in check.
** In ''Legacy Of The Rasengan:'', Naruto tends to alternate between TheKirk, TheMccoy and TheSpock which tends to throw the team dynamic off what with Sakura being TheMccoy and Sasuke being TheSpock. Makes it very complicated since Naruto has to, at times, play a one-man FreudianTrio to get the team to work on any level.
* In ''FanFic/{{Horseshoes and Hand Grenades}}'' and its subsequent sidestories have characters in different groups at the same time. This includes:
** Rumi (Id), Jun (Superego), and Mari (Ego).
** Ibuki (Id), Taira (Superego) and Abe (Ego).
** Yuki (Id), Miu (Superego) and Tomoko (Ego).
** Yuki (Id), Erin (Superego) and Tomoko (Ego).
** Jiro (Id), Gentaro (Superego) and Kengo (Ego).
* In ''Fanfic/NecessaryToWin'', there is one such trio among three students of the Nishizumi school. Kikuyo is TheMcCoy, a compassionate and idealistic maid for the head instructor, who [[ConflictingLoyalty is torn between her loyalty to her mistress, and her desire for the well-being of her mistress' daughter]], to whom she is [[ParentalSubstitute a mother figure]]. Ami Chouno, a JGSDF instructor who helped train Oarai's tankery team, is TheKirk, who shares many of Kikuyo's desires and conflicts, but also reminds her of practical considerations. Takako Kubo, who, in this fic, is Black Forest's coach, is TheSpock, believing that [[DrillSergeantNasty harsh methods of discipline]] are [[IDidWhatIHadToDo entirely justified and necessary]] in order to make Black Forest a winning team. Interestingly enough, TheSpock in this case gets along with TheMcCoy better than TheKirk, with whom she had a falling out over her methods of discipline.
* In Lauralot's [[http://www.fanfiction.net/s/5085463/61/Shadow-Selves Shadow Selves]] fic, Scarecrow and Jonathan are written as a "functional" version of dissociative identity disorder. Chapter 61 reveals that Jonathan works as the superego of their team while Scarecrow acts as the id - and Scarecrow "had no idea where their ego was". In a more traditional sense, the author mentions that they recorded their psych notes as Superego: Batman, Joker: Id, and Ego: Bruce Wayne.
* In ''FanFic/{{Sight}}'', Ichigo, [[TalkingWeapon Zangetsu]] and [[SuperpoweredEvilSide Hakuran]]: [[TheKirk Ichigo]] is the Ego, the conscious self, acts as the mediator between [[TheMccoy Hakuran]] and [[TheSpock Zangetsu]] and reconcilates Zangetsu's suggestions with Hakuran's desires. [[TheSpock Zangetsu]] is the Superego acts as Ichigo's conscience and is better at strategy and recognizing social conventions, such as knowing when to tell Ichigo how to lie through omission. [[TheMccoy Hakuran]] as Ichigo's Inner Hollow is the Id, the base desire. Hakuran is always itching for a fight, does not censor himself in his language and has a childish curosity.
* There are a lot of Freudian Trios in ''FanFic/SuperSmashBrothersGuardiansArise'', considering that a lot of chapters introduce three characters at the same time. Some examples being:
** Aly (Id), Eric (SuperEgo), and Mars (Ego).
** Nao (Id), Kai (SuperEgo), and Teal (Ego).
* ''Fanfic/Swing123AndGarfieldodiesCalvinverse'' has something akin to this in a sextet:
** Calvin and Socrates are the Ids, the latter more so.
** Hobbes and the MTM are the Egos.
** Andy and Sherman are the Superegos, the latter more so (again).
* Takato, Ruki and [[spoiler: Chaos]] all form one of these in the ''FanFic/TamersForeverSeries''.
** TheId: [[spoiler: Chaos]] -- the living embodiment of disorder and thus the most impulsive of the trio.
** SuperEgo: Ruki -- a sentient A.I and thus the most intellectual of the three.
** TheEgo: Takato -- the balance between the two.
* In ''Fanfic/HopeForTheHeartless'', we have the [[ExactlyWhatItSaysOnTheTin Invisibles]] (though there are four of them), the creations and servants of CosmicEntities called the Fates.
** TheId: The second and the third Invisible (who act like SingleMindedTwins nearly always) are both [[GreatGazoo wild]], fun-loving and optimistic [[ThePrankster pranksters]] squeezing enjoyment out of nearly every situation, no matter how bad that might be. They hardly care for the Fates' instructions and continuously disobey them. Eventually the Fates give up trying to enforce a particular rule on them (being TheVoiceless).
** TheSuperego: The first Invisible acts as [[OnlySaneMan the serious leader]] of the group. It tries to follow the Fates' instructions more than the others and is considered boring by them, being often called Dusty. It can barely stand ThePrankster duo and is constantly [[ButtMonkey the butt of their tricks]].
** TheEgo: The fourth Invisible is the most sensitive and the least vocal of the group. It uses to observe the others' antics, being amused by them. Sometimes it even happily joins ThePrankster duo's schemes or does something wild of its own.
** Their differences are finely shown and explained when [[VillainProtagonist the Horned King]] nearly [[WouldHurtAChild chokes]] [[PurityPersonified Avalina]] to death and locks her up: the second and the third Invisible channel their agony into [[UnstoppableRage fiery]] [[BewareTheSillyOnes rage]] rather than grief. The first Invisible turns its agony into a wall of ice, and the fourth Invisible sobs uncontrollably.