* TheAbridgedSeries: ''WebVideo/OuranTheVaguelyAbridgedSeries''.
* CrossDressingVoices: It's very difficult to remind oneself that Honey is male when he sounds like [[Anime/PrincessTutu Duck (Ahiru)]] and [[VisualNovel/{{Clannad}} Nagisa Furukawa]] [[Creator/LuciChristian in English]]. This trope also applies [[Creator/AyakaSaitou in Japanese]].
* FanNickname:
** "Haruhi Potter" for Haruhi's pre-Host Club appearance.
** The Merit Scene, for [[https://www.youtube.com/watch?v=rjXf5e5iAXs this]] SignatureScene.
* NonSingingVoice: Inverted with Haruhi; revealed in Episode 19, she doesn't even get an ImageSong! [[IronyAsSheIsCast Ironically]], both [[Creator/MaayaSakamoto her seiyuu]] and [[Creator/CaitlinGlass English voice actress]] are known for their singing abilities.
* PlayingAgainstType: In the dub, the cultured, sweet and hilarious [[Creator/VicMignogna Tamaki]] is voiced by [[Anime/DragonBallKai Broly]], the bloodlusting Saiyan.
* SurpassedTheTeacher: Hatori Bisco herself is an example of this, given that she used to be tutored to an extent by Hino Matsuri, the author of ''Manga/VampireKnight'', who at the time was a more experienced mangaka (and ''Vampire Knight'' being more popular than Ouran to boot), whom Hatori greatly admired and looked up to. Eventually however, ''Vampire Knight'' suffered from SeasonalRot and a steep loss of popularity along with it, while Ouran continued to climb the ladder of most successful shoujos, making it as far as to the top 10 list in Japan and even surpassing shounens such as ''{{Manga/Bleach}}'' (a rare accomplishment for a shoujo). In contrast, Hino Matsuri was told to end her story earlier than she wanted, her decrease in storytelling-quality and popularity not leaving ''Vampire Knight'' substainful enough for the [=LaLa=] magazine anymore (same one as Ouran was published in). Ouch.
* WhatCouldHaveBeen: Apparently, Hatori was originally considering Haruhi and Mori to fall for each other! This idea might be referenced in chapter/episode 7 where Haruhi blushes when Mori first calls her by name, and they spend some alone time where she's willingly carried around by him.
** The bonus chapter about how Haruhi's parents met was originally going to be a full length chapter, but had to be shortened due to time limit.
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