* AccidentallyAccurate: Ichika in the novels always called the [[{{Moe}} cute]] {{Sleepyhead}} girl with the long sleeves "Nohohon-san", which roughly means "Ms. Whatever" since he didn't know her name. On her end, she thinks he's calling her a shortened version of her real name. When Ichika finally admits he doesn't actually know her name in Volume 5, she gets upset, though she gets over it fast. Her real name is Nohotoke Honne, which meant Ichika was getting it pretty close the whole time.
* ActingForTwo: In the English dub, Chifuyu & Madoka are both played by Creator/LuciChristian. [[spoiler: It's almost certainly due to the fact that Madoka looks like a slightly younger Chifuyu.]]
* ActorAllusion:
** The following instances involving Ichika is this trope in relation to [[Creator/KoukiUchiyama his seiyuu's]] role as the main character of ''Anime/MobileSuitGundamUnicorn'': the predominantly-white motif of his IS (and which name translates as "Type-White") as to the titular mech; his duel against Rin, posing and [[http://i56.tinypic.com/2vxixkj.jpg charging similar to the titular mech]]; and the OutOfClothesExperience scene with Houki in Season 1 Episode 11, which is based on the scene from Episode 3.
** As to Laura, her eyepatch is on the left eye instead of the right and she initially didn't use knives, [[YouWannaGetSued perhaps to avoid]] making her look and sound any more like [[Anime/MagicalGirlLyricalNanoha Cinque]] than she already [[Creator/MarinaInoue does]]. In the second season, her knives start seeing a ''lot'' more use.
*** Meanwhile the dub, it's apparently changed to resemble [[Anime/RebuildOfEvangelion another]] eyepatch-wearing TykeBomb.
*** The railgun on her IS has traces of this as well since [[Creator/MarinaInoue her seiyuu]] also voiced another character with [[Anime/TengenToppaGurrenLagann a long-barreled, high-output gun as her main weapon...]]
** Also, this is [[Manga/MaidSama not the only time]] [[Creator/MonicaRial Houki's English VA]] played the role of a dark-haired {{Tsundere}} with [[CharlesAtlasSuperpower an insane amount of strength.]]
* BadExportForYou: The author had some fits with the publisher over an allegedly unauthorized Chinese localization deal, causing the series to be put on hiatus for a few months.
* FakeBrit: American VA BrittneyKarbowski as [[TheOjou Cecilia Alcott]]
* FanNickname:
** Honne Nohotoke gained the nickname "Pikachu-chan", due to her unusual beach costume in season 1 episode 9.
** Then there's "Neutron Star" for Ichika, due to his [[CluelessChickMagnet romance-related cluelessness]] which rivals even [[LightNovel/{{Kampfer}} Natsuru Senou]].
** Some people call this series as "Country Wars" because it reminds them of [[LightNovel/DemonKingDaimao Color Wars.]]
** A large number of people simply like to refer to the girls by the country they represent. Cecilia and Bri-tan is the most original it can get.
** A lesser but still well-known nickname coined by /a/ would be [[Literature/CharlieAndTheChocolateFactory Ichika And The Jelly Factory.]] [[labelnote:Explanation]] Jelly in this case would mean [[ClingyJealousGirl jealous.]][[/labelnote]]
** Invoking IThoughtItMeant, detractors call this "limit of successful works", meaning that if a work did not surpass IS's BD sale number(33,813), it cannot be considered successful.
* TheOtherDarrin: Not for the voice actors, but for the illustrators. Okiura has been I.S's illustrator for the first seven volumes. From volume 8 onwards (as well as reprints), CHOCO replaces Okiura as illustrator as part of the author switching publishing companies.
** Double for the animators: Media Factory was tasked with animating the story, until Overlap took over by the second OVA and season 2.
* RelationshipVoiceActor:
** ''KingdomHearts'' fans will finally have their wishes granted with the Orimura siblings: making [[Creator/KoukiUchiyama Ventus]] and [[Creator/MegumiToyoguchi Aqua]] as siblings.
** Creator/KoukiUchiyama has another harem in ''Manga/BinbouGamiGa'', which includes Creator/KanaHanazawa's character (whose name is Ichi''ko'').
*** And also in ''Manga/{{Nisekoi}}'' as Raku Ichijou and Kosaki Onodera, respectively.
** In an alternate, {{Magitech}} universe, [[Creator/{{Yukana}} Cecilia]] [[LightNovel/UnbreakableMachineDoll became the creator]] of [[Creator/AiKayano Madoka]] instead of being heated rivals in terms of BT weapon mastery, with the latter very loyal to the former and addressed her as "Master". Congradulations, Cecilia, now you can finally get your pride back...shame about your missing eye though...
* NoExportForYou: Averted with the anime series (both Season 1 and Season 2). Meanwhile, as for the novels, while there was a group that fan translated them up to Volume 8, the translating group itself was becoming quite irritated at the story's pacing and incessant fanservice, and they quit the series after that. [[https://daupao.wordpress.com/2014/10/25/infinite-stratos-volume-9-translation/ An independent translator]] managed to finish the first half of Volume 9, but suddenly stopped after that.
* ScheduleSlip: Due to the author's health, the sixth novel was delayed until December 2010, which was a six month gap between Volumes 5 and 6. Before this, the volumes had never been more than three or four months apart.
** After Volume 7 was published in April 2011, the author apparently had some kind of dispute with his publishing company. The result was that Volume 8 didn't get published until April 2013. In June 2013, Yumizuru mentioned (in an author's note in the reboot manga's 1st chapter) that he was working on Volume 9, but it still has yet to be released.
** Volume 9 was finally released on April 25, 2014, exactly one year after Volume 8.
** Volume 10 was released on July 25, 2015, 15 months after Volume 9. Seems like a pattern is developing...
* TheWikiRule: Still small, [[http://infinite-stratos.wikia.com/wiki/Infinite_Stratos_Wiki but it's there]].