%%* ''{{Shuffle}}'', ''Princess Nine'', ''Anime/NeonGenesisEvangelion'', ''Anime/MobileSuitGundam'', ''{{Macross 7}}'', ''Touch'', ''VisualNovel/HigurashiWhenTheyCry'', ''VisualNovel/{{AIR}}'', ''StarBlazers'', ''VisualNovel/PhoenixWrightAceAttorney'' and other series.
* In "Live Alive", Itsuki is playing Guildenstern in ''RosencrantzAndGuildensternAreDead''. Poorly. Not to mention the fact that the episode's named [[LiveALive Live Alive]].
** The entire episode bears uncanny similarities to ''LindaLindaLinda''.
** The group right before ENOZ is appearently a DetroitMetalCity cover band, with mascot and all.
** The name ENOZ is a reference to [[http://en.wikipedia.org/wiki/Zone_%28band%29 ZONE]].
* The book Nagato gives Kyon is ''Literature/{{Hyperion}}''. It's a book/series about time travel, aliens, bizarre powers and things that may or not be gods/God... Hm...
** More than that: After reading ''Hyperion'', one may gain a whole new level of insight into what Yuki is and what her (and the Data Overmind's) motivations are.
*** In the second novel, they are described ([[spoiler:Disproved in 4th book, Rise of Endymion]]) as made up of 3 factions. The Stables, who want to continue their relationship with humans. The Volatiles, who just want to kill all the humans. And the Ultimates, who just want to build their god, the Ultimate Intelligence. Guess who represents the first 2 factions soon after...
*** The scene in which Nagato [[spoiler: gets impaled through the chest]] may be a ''Hyperion'' reference too.
* In "Someday in the Rain", Kyon and Koizumi are playing a real [=TCG=] called Dragon All-Stars that features various anime/light novel characters; among the cards shown are [[LightNovel/{{Slayers}} "Lina and Naga" and a Gourry card]].
** [[LightNovel/GoshuushouSamaNinomiyaKun Tsukimura Mayu]] is also seen as one of the cards.
* In "Bamboo Leaf Rhapsody", Yuki is reading ''Literature/TimeEnoughForLove'' by Creator/RobertAHeinlein. This, too, has implications for the story.
* In ''Dissociation'', Yuki is reading ''Godel, Escher, Bach: an Eternal Golden Braid'' by Douglas Hofstadter. Yuki could start the trope on Suspiciously Apropos Literature.
* Kyon notices that Time Traveller Mikuru has never been inside a fashion store -- rapidly changing clothes on mannequins in the window of a fashion store are part of the TimePassesMontage made famous by HG Wells' ''TheTimeMachine''.
* Another Wells reference is made by Koizumi in the 9th novel, he says that Nagato can't catch a human virus, as she is a real alien, and not a "[[Literature/TheWarOfTheWorlds martian from the past]]."
* Each time Kyon wearily removes the frog costume during the "Endless Eight", he makes reference to a different anime/manga. For example: "Now I know how [[Anime/NeonGenesisEvangelion Unit 00]] felt after being hit by that beam." ([[WikiMagic Perhaps the other references can be identified here.]])
** For extra fun, remember who piloted Unit 00. Then look at [[{{Expy}} Yuki]].
** And he also goes [[KeroroGunsou 'gerogeeroo']] at the end of this scene [[spoiler: in at least two of the loops]]. After Haruhi and Keroro have both been referenced in ''LuckyStar'', this completes the triangle somewhat.
** Also in the ''Sigh'' anime: "Target in the center, then press Record."
** Again in ''Sigh'', Kyon remarks that a waitress outfit is unsuitable for a battle scene. One of the alternatives he suggests is a plugsuit.
* In the anime adaptation of ''Sigh'' Kyon mentions Apathy Syndrome, a reference to ''{{Persona 3}}''.
* So Haruhi [[Anime/{{FLCL}} wears a]] PlayboyBunny [[Anime/{{FLCL}} suit and plays the guitar at the same time...]]
** She also plays the same guitar as the guitarist, an [[http://www.elevation-music.com/itmoiielguwh.html Italia Mondial Woody II]]
* When Haruhi starts dancing at first base, Kyon wonders if she's trying to reduce the magic points of the pitcher; the move "Odd Dance" does that in ''DragonQuest.''
* Also in the ''Sigh'' anime: Kyon tells Koizumi to cast "Thwack" on himself and die.
* In the episode "Day of Sagittarius" the space battle sequences are a direct reference to the space battles from ''LegendOfTheGalacticHeroes''.
** [[http://www.youtube.com/watch?v=80gQklu1r84&NR=1 6:08 in this clip]]. Props to the Computer Club for knowing Shostakovich's ''Leningrad Symphony''.
** There's also a handful of references to [[SpaceBattleshipYamato Space Battleship Yamato]] if you look closely.
** And we have a ShoutOut to the Franchise/{{Gundam}}-series ("Bring out the [[YouWannaGetSued * beep* ]]dams!"), including a censored one ''shooting.''
** The aforementioned episode is also a shout out to ''[[UchuuSenkanYamato Star Blazers]]'', which also took place on giant spaceships with giant cannons. The leader of the Computer club even quotes the CatchPhrase of ''Star Blazer'''s season 1 episodic villains by saying: "All hail the computer club!!!". The original line said by the villains every time they lost to the protagonists' crew being: "All hail the Gamilon Empire!!!"
* While fighting the cave cricket, Itsuki [[CallingYourAttacks shouts]] "[[Anime/FullMetalPanicFumoffu Fumoffu!]]" and "[[Lightnovel/FullMetalPanic Second Raid!]]". Doubles as an ActorAllusion -- Creator/DaisukeOno had a minor role in FMP.
* In "Live Alive", Kyon says "Enjoy the festival. In a normal fashion." to ThoseTwoGuys. This is a reference to Sousuke saying "Enjoy your bath. In a normal fashion." in ''Anime/FullMetalPanicFumoffu''[='s=] onsen episode.
* The name [[http://tardis.wikia.com/wiki/John_Smith "John Smith"]] in itself is a direct reference to the British series ''Series/DoctorWho'', which is all about (you guessed it) {{time travel}}, sliding through alternate worlds and whatnot. Quite fitting for as alias for Kyon when it served as the alias for the Doctor as well.
** Actually, John Smith is an extremely common alias used, just like John Doe is.
* In the episode "The Melancholy of Haruhi Suzumiya Part 6", Kyon [[http://i1118.photobucket.com/albums/k613/SpecularReflection/shny/Kyon-wristwatch.jpg can be seen wearing]] a [[http://www.creativewatch.co.uk/pimages/hamilton-ventura-watch-h24411732-large.jpg Hamilton American "Ventura"]] wristwatch, as worn by the Film/MenInBlack.
* According to Kyon, Taniguchi and Kunikida are less harmless than a [[DragonQuest healer slime]] showing up alone.
* In Endless Eight, Itsuki calls it an "endless summer" (in GratuitousEnglish). Kyon (also in GratuitousEnglish) calls it a "no future", possibly referencing the Series/DoctorWho novel No Future.
* Also in Endless Eight, after being told about the endless recursion of time, Kyon utters something similar to Goemon's catchphrase from Franchise/LupinIII. Also at one point, after Koizumi tells him to say "I love you" to Haruhi, he replies [[Franchise/YuGiOh "Ore no turn!"]]
* Again in Endless Eight Mikuru says "I can't go Film/BackToTheFuture!" OnceAnEpisode.
** [[http://images.wikia.com/haruhi/images/5/50/Endless_Eight_VII.png Kyon even mimics]] [[http://25.media.tumblr.com/tumblr_l4c0m1eIDN1qcn04no1_500.png Marty's strange sleeping position.]]
* Yet again in Endless Eight, during the festival, Yuki buys herself an Ultraman mask.
* In ''The Melancholy of Asahina Mikuru'', from the 6th novel, Kyon referenced [[Franchise/HarryPotter Veritaserum]].
* Compare Kyon's slow-mo fall through the window in ''Disappearance'' to Spike's in ''Cowboy Bebop''.
* In the episode "Remote Island Syndrome 2," the 'culprits' of the murder appear as black shadowed figures with slanted yellow eyes. This is also how unidentified criminals are portrayed in both the anime and manga of Detective Conan.
* In each English book cover of the series, there is a little symbol on the top normally relating to what's going on in the book. In the sixth novel, the Wavering of Haruhi Suzumiya, the symbol just so happens to be the GroundhogDayLoop 's page image.
** Strange considering the previous novel in the series was the one with the GroundhogDayLoop...
* While explaining the concept of ''moe'' to Kyon, Haruhi holds up two manga anthology magazines as examples. One of them has Asa and Kaede of ''{{Shuffle}}''.
* In "Remote Island Syndrome Part II" Haruhi imitates the [[GoingThroughTheMotions sprites]] from the video game ''VisualNovel/AceAttorney'', as well as the dramatic close-ups and, but of course, the '''"OBJECTION!"'''. Itsuki runs with it and imitates Edgeworth.
** Which is HilariousInHindsight, since WendeeLee is the voice of both Haruhi and the newest attorney to the series, Athena Cykes.
** Kyon seems to go with it, too: he's evidently playing the Mia to Haruhi's Phoenix, since he's mostly shown during the explanation with his arms crossed, which is one of Mia's default sprites (especially when channelled by Pearls), wears his collar open like Maya's and Pearls' costumes go when channelling Mia, and was the actual one who figured everything out, [[UnreliableNarrator if his narration is anything to go on there.]] Like Mia, he also gets to add a little bit of the explanation to the reveal.
** Also, the episode title is written with one red character, in the style of ''HigurashiNoNakuKoroNi''.
*** Not to mention that a minor character in the episode is named after ''HigurashiNoNakuKoroNi'''s leading man.
*** And it may have come full circle with the latest installment of the ''Franchise/WhenTheyCry'' series, which takes place on an island isolated by a storm.
** And we can't forget:
-->'''Tsuruya:''' Mikuru-chan, I want to [[ImTakingHerHomeWithMe take you home with meeee~~]]
** The fact that the GroundhogDayLoop episode contains a cicada-catching contest is also a ''Higurashi'' reference.
* A more subtle reference is the pun of Yuki's name on [[Anime/NeonGenesisEvangelion Rei Ayanami]]. "Rei" can mean "cold" while "Yuki" can mean snow. Nagato and Ayanami were both Japanese warships that served in World War II.
* At the beginning of "Live Alive", Kyon gets waylaid by two people dressed as Hard Gay and Akihiro Miwa.
* In the final episode of ''{{Haruhi-chan}}'', there's a ShoutOut to ''Disappearance'', specifically in Yuki's DatingSim VisualNovel where Yuki gives the player character a Literature Club application form. The date in the upper left hand corner (intriguingly, Yuki used the KeyVisualArts date format in her game) was December 18, which is the date that [[spoiler:Yuki hijacked Haruhi's powers and remade the world in the ''Disappearance of Haruhi Suzumiya''.]]
* A fairly unknown reference in the Western fanbase, an early episode has Kyon almost incomprehensively slurring a remark that roughly translates to, 'This has got to be a lie.' The reference is to an internet meme originating from ''Kamen Rider Blade'' where the main protagonist's slurred Japanese is referred to as 'Ondouru-Go' by the Japanese fanbase. In fact, Kyon's quote is copied exactly word for word from one of the more popular 'Ondouru-Go' phrases.
* In the English dub of Melancholy (episode 3), during the second part of Yuki's initial exposition speech at her apartment about Haruhi and her being an alien an all that, you get this sequence:
--> '''Yuki''': There is a reason she choose you rather than someone else.
--> '''Kyon''': No way!
--> '''Yuki''' (even more deadpan than normal): Way.
** The last two lines are a famous quote from [[WaynesWorld Wayne's World]].
** The same shout out (no way/way) appears in chapter 30 of Dan Simmons' novel Endymion, between Endymion and the "ship" AI. Endymion is a sequel to ''Literature/{{Hyperion}}'', which Yuki had just read and given to Kyon. It is reasonable to suppose Yuki was reading the sequel at the time and got the response there. There are neat parallels. Endymion/Kyon is protecting a girl (Aenea/Haruhi) with the fate of the world in her hands, and ( ship AI / Yuki ) are trying to protect both.
* The plot of ''Disappearance''. [[ReiAyanamiExpy Yuki]] begins to [[CharacterDevelopment develop]] [[BreakTheCutie anamolous]] [[DefrostingIceQueen emotions]], leading her to [[HeroicBSOD disobey her creator]], [[ApocalypseMaiden attain godhood]] and cause [[TheEndOfTheWorldAsWeKnowIt The End of The World As We Know It]] ... but only if the [[OrdinaryHighSchoolStudent ordinary ]] [[AudienceSurrogate protagonist]] [[WithGreatPowerComesGreatResponsibility is okay with it]]. Does this [[DoesThisRemindYouOfAnything sound]] [[NeonGenesisEvangelion familiar?]]