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A romance, sexual or otherwise, between two different species. Sometimes they are HumanoidAliens, or they can be a FriendlyNeighborhoodVampire and a human, two {{Funny Animal}}s, or a BeastAndBeauty couple. The type of species can diverge greatly, so long as they are different.

May include a moral about the FantasticRacism version of inter-racial romances. Also may be StarcrossedLovers. Anyone looking for more built in angst will make one of these a MayflyDecemberRomance. In [[MohsScaleOfScienceFictionHardness less realistic]] settings, can easily result in {{Half Human Hybrid}}s or {{Hybrid Monster}}s.

Chances of it actually becoming an OfficialCouple (and evolving into a mixed marriage) are increased if the nonhuman has a [[HumanAliens human form]]. Although there is an element of {{Squick}} amongst a certain number of audience members, most people accept it in cases where there are ''no'' humans involved. For anthropomorphic animals, this can be a source of FurryConfusion, especially if they're the ''only'' couple seen to be of different species.

For some this is [[BoldlyComing the way to go about First Contact]]. [[AlienInvasion Alien invaders]] seemingly love to tempt humans with this as part of their {{Masquerade}}, although [[HowToInvadeAnAlienPlanet you'd think they'd learn better]].

See also: ExtremeOmnisexual, BestialityIsDepraved, MarsNeedsWomen, DivineDate, MagicalGirlfriend, DeusSexMachina, DidYouJustRomanceCthulhu, BoyMeetsGhoul, {{Robosexual}} (for when the "species" barrier is a robot, AI, or other artificial lifeform), and HotSkittyOnWailordAction (for when you wonder how these two things could actually reproduce). May involve ExoticEquipment or the MaleToFemaleUniversalAdaptor. May lead to {{Half Human Hybrid}}s or to a NonhumanLoverReveal if one member was keeping secrets. If society does not approve of such romance, then it's also MalignedMixedMarriage. InterspeciesFriendship is the platonic version of this trope.

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!!Examples with sub-pages:

[[index]]
* InterspeciesRomance/AnimeAndManga
* InterspeciesRomance/ComicBooks
* InterspeciesRomance/{{Fanfic}}
* InterspeciesRomance/{{Film}}
* InterspeciesRomance/{{Literature}}
* InterspeciesRomance/LiveActionTV
* InterspeciesRomance/MythologyAndReligion
* InterspeciesRomance/TabletopGames
** InterspeciesRomance/DungeonsAndDragons
* InterspeciesRomance/VideoGames
* InterspeciesRomance/{{Webcomics}}
* InterspeciesRomance/WebOriginal
* InterspeciesRomance/WesternAnimation
[[/index]]

!!Examples with sub-pages:

[[foldercontrol]]

[[folder:Advertising]]
* Spuds [=McKenzie=]: what a playah! What a ''dog'' playah! What a dog playah with ''human'' girlfriends...er...right.
* The "twist ending" to an [=AirWick=] air-freshener commercial is that the talking elephant housewife's husband is a many-stinky-shoed ''centipede''. Pairings in other ad campaigns include chimpanzee-skunk, giraffe-boar and penguin-bear. The last one's sons are ''[[BigLippedAlligatorMoment pigs]]''.
* Fruit By The Foot [[http://www.youtube.com/watch?v=V9oAd7uHeVQ has a commercial]] with a female lizard getting attracted to a young human male after mistaking the long strip of gum stretching from his mouth for a prehensile tongue.
* Pretty much all of the Orangina ads, but especially the big musical number with the [[http://www.youtube.com/watch?v=ck14LKBI9GM bear and the deer]].
* [[http://www.youtube.com/watch?v=ls6eIbiKvUM This ad]] and [[http://www.youtube.com/watch?v=LsJiGF_Groo this ad]] imply that the Kia Soul hamsters find human women attractive.
* There's a commercial for a ''WesternAnimation/DoraTheExplorer'' mermaid Dora toy, which shows a mermaid girl whose mother is a human and father is a giant fish.
* [[https://www.youtube.com/watch?v=l-NLT_jOfww This ad]] for the Bank of Queensland pairs a human hunter with a deer.
* Direct TV's ads feature a man married to a human-sized living marionette. [[{{Squick}} They even have a son]].
* Commercials for Sprint's Framily plan show Creator/JudyGreer married to a hamster. They have three kids: a man (played by Kyle Mooney who's only nine years younger than Greer), a southern boy, and a French girl.
[[/folder]]

[[folder:Apparel]]
* Parodied by [[http://wearscience.com/design/martian/ this shirt]].
[[/folder]]

[[folder:Music]]
* 'Star Girl' by Music/McFly was about an interspecies romance between a human and an alien. According to Tom Fletcher, the song was based on a dream he had where he romanced an alien woman.
* 'Interspecies Love' by Kevin Blechdom. Aliens again.
* [[http://www.youtube.com/watch?v=ya0X53SN7R8 "My Beloved Monster"]] by Eels.
* '[[http://www.youtube.com/watch?v=z2kc570KwUs Herr Mannelig]]'. She's a mountain troll. Though the 'romance' in this case is pretty one-sided.
* Sadly, parental disapproval averted Herman's and Sally's inter-crustacean romance in the Smothers Brothers' comedy song "Crabs Walk Sideways".
* The whole point of ''E.T / Futuristic Lover'' by Katy Perry.
* From ''Series/WhoseLineIsItAnyway'', there's the song [[http://youtube.com/watch?v=xf-tQxMSxos "Bubbles"]], which was made up one-word-at-a-time and is about [[DidYouJustRomanceCthulu a man romancing a sea monster.]]
* "Fish and Bird", by Music/TomWaits, tells the story of two StarCrossedLovers: a bird and a whale. As ridiculous as the premise sounds, it still manages to be deeply sad.
* Orangutan/human in Megadeth's [[http://youtu.be/fLN1OB3_wG8 "Public Enemy Nš 1"]] video (implied).
* The music video for the song [[http://www.youtube.com/watch?v=PtMU8nvZzOs "Close But No Cigar"]] by Music/WeirdAlYankovic is all about this. It was made by Creator/JohnKricfalusi, so it's not surprising...
* The music video of ''Opposites Attract'' has Paula Adbul dancing with and romancing a cartoon cat named M.C. Scat Cat
* [[http://www.youtube.com/watch?v=t5Sd5c4o9UM "E.T."]] by Music/KatyPerry and Music/KanyeWest. The video begins with the song "Where in the World Can My Lover Be?" by Midge Williams & Her Jazz Jesters playing in the background. As the music begins, Kanye is shown in a spacecraft revealing pictures before zooming out of the craft. In the video, Perry, as an "alien", drifts through outer space before landing on an abandoned Earth covered with litter. Clips are interspersed of large felids hunting game. She comes across a broken robot (resembling a spaceman), which turns into a naked male, played by Shaun Ross upon her kiss. It is eventually revealed Perry's legs are in fact those of a gazelle. Meanwhile, West is featured in the video floating in a traveling spacecraft.
* "Runaway" is a 35-minute short film (it serves as the music video for a compilation of songs from West's album, "My Beautiful Dark Twisted Fantasy") directed by Kanye West. The film depicts a romantic relationship between a man and a half-woman, half-phoenix, and is set to music by West from his album.
* The second version of the music video for "[[http://www.youtube.com/watch?v=vOiYsKKe2vQ Bad Boy]]" by Miami Sound Machine, which features the cast of ''Theatre/{{Cats}}'' in their cat costumes, one of them getting really cuddly with Music/GloriaEstefan's character (who's human, though she sports a cat tail at the end of the video).
* The music video for [[http://www.youtube.com/watch?v=fxvGHQHiY70&ob=av2e "Peacebone"]] by the experimental rock group Music/AnimalCollective shows a blossoming romance between a human woman and.. [[EldritchAbomination something else.]]
* In the music video for [[http://www.youtube.com/watch?v=IsuVMdnF8A0&feature=relmfu Spectrum]] by ZEDD, a man meets and falls in love with an [[BoldlyComing alien woman]] whose spaceship appears in front of his house and leaves her there.
[[/folder]]

[[folder:Theater]]
* ''Bat Boy: The Musical'' features a romance between the Bat Boy (Edgar), and [[spoiler:[[BrotherSisterIncest Shelley]]]]. This is encouraged by the Demi-God Pan, in the midst of a rather-large, MUSICAL, inter-species orgy.
* ''Theatre/AvenueQ'' gives us Princeton (a human/puppet) and Kate Monster ([[ExactlyWhatItSaysOnTheTin a monster]]/puppet)
* Umbridge (an extremely strong human woman) and Firenze (a centaur) from ''[[Theatre/AVeryPotterMusical A Very Potter Sequel]]''.
* ''Theatre/{{Seussical}}'' has [[Literature/HortonHearsAWho Horton the Elephant]] and Gertrude [=McFuzz=], a bird.
* The ''Creator/TeamStarKid'' play ''Theatre/{{Starship}}'' has an alien bug/human romance, as well as a human/robot one.
[[/folder]]

[[folder:Visual Novels]]
* The origins of the [[spoiler:Furude]] family in ''VisualNovel/HigurashiWhenTheyCry'' stem from a marriage between a human and a demon ([[spoiler:Hanyuu]]). Note: [[spoiler:Hanyuu was older than the form seen in the 7th and 8th novels during said marriage.]]
* ''VisualNovel/HatofulBoyfriend'' is a DatingSim, like many others, where your character tries to romance cute guys. Only this time, replace "cute guys" with "photo-realistic pigeons". To help players identify with the characters, there is an option for the intro scene of each love interest to show an image what he would look like as a human (answer: {{Bishounen}}). However, it is made clear that the birds really are birds, and this is just a visual TranslationConvention.
* ''VisualNovel/DraKoi'' is a love story between a nameless protagonist and a dragon who similarly has no name. [[spoiler:She picked him out as the one who would slay her, a choice he can reject.]]
* Taken pretty seriously with the noted titles of ''VisualNovel/{{Kanon}}'' and ''VisualNovel/{{Clannad}}'' by KeyVisualArts. Both scenarios are demonstrated in a rather TearJerker route following the BeautifulAllAlong path, except... just replace ''beautiful'' with ''animal''.
* ''VisualNovel/DramaticalMurder'' has one between Aoba and [[spoiler:Clear, an android]].
[[/folder]]

[[folder:Web Animation]]
* ''WebAnimation/ThereSheIs'', in which a female rabbit falls in love with a male cat. The interspecies part of their relationship plays a big role in the plot: Such romances are extremely frowned upon in their societies (a metaphor for the strained relationship of Japan and Korea).
* ''WebAnimation/HappyTreeFriends'': Considering that most of the characters are different species, this was inevitable. The {{Official Couple}}s are Cuddles (a rabbit)/Giggles (a chipmunk) and Handy(a beaver)/Petunia (a Skunk).
* In ''WebAnimation/BowsersKingdom'' episode 8, Steve the Piranha Plant fell in love with a [[VideoGame/SuperMarioWorld Dino Rhino]] (with a bow and lipstick). The [[VideoGame/SuperMarioGalaxy Dino Piranha]] was the resulting lovechild.
[[/folder]]

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