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->'''Jane:''' Ricardo has a twin brother?\\
'''Latin Lover Narrator:''' Don't act so surprised, Jane. It's a well-worn trope of the genre.
-->-- ''Series/JaneTheVirgin''

Tropes that surround twins (and other multiple births -- triplets, quadruplets, quintuplets, ''ad infinitum'').

See also SynchronizedIndex.
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!!Associated tropes:

[[index]]
* AllegedLookalikes: Two characters look ''awfully'' alike to the cast, but the audience doesn't believe they're any more similar than anybody else.
* AlwaysIdenticalTwins: When twins of the same sex are mentioned in fiction, they are almost always identical, not fraternal.
* AngstySurvivingTwin: One twin dies so the other can be angsty (and [[UniquenessValue more unique]]).
* BackupTwin: KilledOffForReal? A twin or clone shows up from nowhere to pick up where you left off.
* ConjoinedTwins: Twins who are born fused to each other.
* CoordinatedClothes: Twins -- especially identical twins -- in fiction will often wear identical (or stylistically similar) outfits to emphasize the twin factor.
* CreepyTwins: SingleMindedTwins, but with the creepiness factor played up.
* EvilBrunetteTwin: You can tell they're worse by their darker hair.
* EvilTwin: Introducing... your evil(er), identical relative!
* FakeTwinGambit: Pretending to be one's own ([[InventedIndividual nonexistent]]) identical twin.
* FearfulSymmetry: Identical combatants with identical attacks will cancel each other out.
* FinishingEachOthersSentences: Due to TwinTelepathy or TwinBanter, twins can carry on one side of a conversation no matter which one is speaking.
* HalfIdenticalTwins: Brother-sister (i.e., fraternal) twins seem identical in all ways other than sex.
* HereditaryTwinhood: Twins begetting twins or having twin relatives attributed to "twins running in the family".
* IdenticalTwinIDTag: Twins make themselves distinguishable with hairstyles, costumes, or scars.
* IdenticalTwinMistake: A character confuses one twin for another.
* ImpersonatingTheEvilTwin: A character is pretending to be their EvilTwin, usually badly.
* MakingUseOfTheTwin: If an actor has an identical twin, bring them into the cast!
* OneTwinMustDie: When having twins is a sign of bad luck/bad omen, only one must live.
* PlayingTheirOwnTwin: Twin or related characters are played by the same actor.
* PolarOppositeTwins: When the OddCouple happen to be twins.
* RichSiblingPoorSibling: Common in twins when it overlaps with HiddenBackupPrince or OneTwinMustDie.
* SameSexTriplets: A set of triplets is more often than not all identical and of the same sex.
* SeparatedAtBirth: Siblings (usually twins) get separated at birth and meet for the first time later in life.
* SiblingSenioritySquabble: Twins arguing over who has seniority due to being the oldest, even if it's a difference of minutes.
* SingleMindedTwins: They have identical appearance and personality and may as well be [[TheDividual one person in two bodies]].
* SuperiorTwinTeamwork: Twins working together prove to be better than when they are apart and in comparison to other non-twin pairings.
* SurpriseMultipleBirth: The birth of twins or more babies comes as a surprise to the parents.
* {{Synchronization}}: Twins share injuries or other metaphysical traits.
* TagTeamTwins: Twins who work together as a TagTeam duo.
* ThemeTwinNaming: Twin names follow a theme: {{rhyme|ThemeNaming}}, alliteration, named after famous twins, etc. This is especially common with identical twins or at least twins of the same gender (boy-boy, girl-girl).
* TooManyBabies: Multiple births that have more babies than three.
* TricksterTwins: A pair of twins who are up to no good.
* {{Twincest}}: Twins getting it on with each other.
* TwinBanter: The snappy patter and unique speech patterns that twins form with each other.
* TwinDesynch: Twins start to look and act differently after they've been separated for a while.
* TwinsAreSpecial: When twin characters or the bond between them are treated as unique or uniquely strong ''because'' they are twins.
* TwinSwitch: Twins swap roles with each other, such as with a TwoTimerDate.
* TwinTelepathy: Twins share a PsychicLink, from simple telepathy to full-on {{Synchronization}}.
* TwinTest: A character is tasked with differentiating between identical siblings by at least one of those siblings.
* TwinThreesomeFantasy: What's [[AThreesomeIsHot hotter than a threesome]]? A threesome where two of them are twins!
* TwoSiblingsInOne: A twin absorbs the soul, LifeEnergy, or other metaphysical properties of their deceased sibling.
* UnknownRelative: Includes when somebody is unaware that a close friend has a twin, often leading to shock or mistaking the one they don't know in sticky situations.
* UntoUsASonAndDaughterAreBorn: When twins are ''born'' in a series, and aren't just there from the start, they're almost always boy-girl fraternal twins.
* WeakerTwinSavesTheDay: Where one twin is weaker but ends up reluctantly saving the day when their stronger sibling dies.
* WonderTwinPowers: Powers that only work when two characters (often twins) work together.
[[/index]]

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