[[caption-width-right:300:[[OhCrap "Mommy...!]] [[OhNoNotAgain They're at it again!"]]]]
[-[[caption-width-right:300:Image by [[https://en.wikipedia.org/wiki/Joseph_Christian_Leyendecker J. C. Leyendecker]].]]-]

->'''Azula:''' I'm sorry it has to end this way, brother!
->'''Zuko:''' No, you're not.
-->-- ''WesternAnimation/AvatarTheLastAirbender'', "Sozin's Comet: Part 3 - Into the Inferno"

[[ExactlyWhatItSaysOnTheTin When two siblings end up being rivals]].

Let's face it, life is a competition. And more often than not, your first and most consistent competitor can be found sleeping in the next bed.

Siblings compete. They compete for toys, love, food, resources, time, attention... in short, pretty much everything. Usually this is a healthy thing -- usually -- as a little healthy competition builds character and helps to define one's place within the world and within the family. (If nothing else, they'll toughen you up to the point where you can handle just about anything the other kids are likely to dish out.) Besides, as anyone who actually has a brother or sister knows, sometimes [[HypocriticalHeartwarming you just have to tease them]]. Otherwise, what's the point?

Sometimes, though, sibling rivalries are not healthy, and then things can get ugly. Really, really ugly. Because who can know you better -- and perhaps have more reason to hate you -- than your own sister or brother? When the battle is between siblings, you can trust them to know (if not always do) the things that are going to hurt you the most.

Naturally, the closer the siblings are in age, the more intense the rivalry is likely to be, and the more likely one of the siblings will feel AlwaysSecondBest. Extreme cases may result in CantCatchUp, especially if an AloofBigBrother is involved. If the parents take sides one of the rivals is bound to become TheUnfavorite. When it spills over into romantic affairs with two siblings pursuing the same LoveInterest, it can become a SiblingTriangle.

For a Sibling Rivalry turned into good vs evil, see CainAndAbel. In case the siblings in question were friends with each other prior to their falling out, it probably triggers WeUsedToBeFriends. Compare to the often-times similar ClashingCousins (parents having a rivalry can also lead to their children inheriting their rivalry as well).

For that splendid variant of sibling rivalry that's exclusively reserved for girls see TheGloriousWarOfSisterlyRivalry.


[[folder:Anime & Manga]]
* ''Manga/RanmaOneHalf'': The Tendo Sisters are a fairly gentle example of the "constant teasing" variant, with Nabiki as the prime instigator, while Tatewaki and Kodachi Kuno exemplify a much darker (and funnier) version of the trope.
** Luckily, [[GrievousHarmWithABody using brothers as weapons]] is completely legal in Rhythm Gymnastics martial arts.
* The ''Anime/MazingerZ'' franchise has a quite tragic example. ''[[Anime/GreatMazinger Tetsuya Tsurugi]]'' was [[TheProfessor Kenzo Kabuto's]] adoptive son. When Kenzo got reunited with his biological son, ''[[Anime/MazingerZ Kouji Kabuto]]'', Tetsuya -- [[BrokenAce who had a TON of abandonment and self-confidence issues hidden under his badass persona]] -- thought his father would forget about him now his son by blood was back. (Something that is already serious for a Western orphan, but due to ValuesDissonance is ''even worse'' for a Japanese one). He got '''very''' jealous and argued and fought with Kouji about anything and everything, determined to prove to Kenzo that he was better than Kouji. Unfortunately, his jealousy and his bickering caused [[spoiler:Kenzo's death.]] Tetsuya suffered a FreakOut because of it... [[spoiler: And in one continuity, [[DrivenToSuicide it drove him to basically commit suicide]] [[HeroicSacrifice to wipe out the enemy]].]]
* Lina and Luna Inverse in ''LightNovel/{{Slayers}}'', even though Luna never appears. Lina seems to admire Luna (she once admitted Luna was [[CoolBigSis "really cool"]] to a little girl who also had big sister issues in the manga) even as she's terrified of her--or perhaps more accurately terrified of making her angry. It seems there may be a wee bit of CantCatchUp motivating Lina.
* Vash and Knives of ''Manga/{{Trigun}}''
* ''Anime/SailorMoon'': Usagi and Shingo Tsukino regularly take potshots at one another. Usagi is bigger than Shingo and is thus able to bully him phsically, but Shingo is smarter than her so he's better at not getting caught when he pulls pranks. It's also made explicit that both of them care deeply for one another and their fighting is just old-fashioned sibling bickering.
* In ''LightNovel/{{Corsair}}'', Canale and Jean-Hughes take this to extremes, with Jean-Hughes having tried several times to murder his brother since the age of eight. When Aura is captured by Jean-Hughes the rivalry rears its ugly head again. Aura and Leti in comparison are a healthy version of this, and Ayace, though not blood-related, has a similar sibling-like rivalry with Aura.
* The sickest version of this trope occurs in ''Manga/IchiTheKiller'' (no surprise there) when two psychotic brothers have a sick rivalry going that ends in torture and mutilation for whoever makes one feel inferior to the other. For instance, they each had sex with two women, then the older brother asked one of the girls who was better. When she said that the younger brother was just a little bit better, he furiously pulled all of her hair out. Then he turned the question to the other girl. Terrified, she said that he was the better one. And then the younger brother [[spoiler:[[{{Squick}} cut her nipples off.]]]] Later on, they had a fierce contest to see who was better at torturing a captive.
** Even more disturbing, the brothers used to be triplets. Their extreme rivalry is the reason they're twins.
* Inuyasha and Sesshomaru from ''Manga/InuYasha'' Sesshomaru is the AloofBigBrother to whom Inuyasha CantCatchUp. Despite this, it's actually Sesshoumaru who feels like his father felt he was AlwaysSecondBest to Inuyasha. [[spoiler: Much of his journey through the manga involves him [[CharacterDevelopment developing]] from a BigBrotherBully to an AloofBigBrother through finally understanding that his father viewed him as a BigBrotherMentor rather than TheUnfavorite.]]
* Misty from Anime/{{Pokemon}} set out on her training journey in order to prove her worth to her three older sisters.
* ''Manga/SangatsuNoLion'' uses this for dramatic backstory. Due to their shogi-dedicated upbringing, Rei, the foster child, and the two Kouda children were rivals in shogi to see who was the best in the family that deserved to continue on toward being a professional. However, what they (or at least, the latter two) were really competing for was affection from their father, since the best received the most attention from him. Rei was unlucky enough to be the best out of the three without much effort.
* ''Manga/SekainohateDeAimashou'': Prince Emilio has several brothers. Each rules a fiefdom in his own right and all of them are either jockeying for the imperial throne or trying to protect themselves from the others who are jockeying for the throne. It's essentially sibling rivalry raised to the level of a cold war.
* PlayedForLaughs and taken to literal extremes in ''Manga/MidoriDays'', with Seiji being at odds with his big sister, Rin, [[{{Troll}} who makes his life hell]] [[ItAmusedMe for her own amusement]][[note]]she's also the one who taught Seiji how to fight[[/note]]. The thing is, Seiji normally WouldntHitAGirl. But, in Rin's case, he gladly makes an exception.
* In ''WebComic/AxisPowersHetalia'', Belgium wonders if her success when she was younger was what drove Netherlands to be the shrewd businessman that he is.
* ''Manga/FullmetalAlchemist'' has Alex and Olivier Armstrong, though it's mostly one-sided on Olivier's end. She sees Alex as a weak-willed, overemotional coward due to his HeroicBSOD during the Ishval Civil War, and she would rather leave the family's estate to Colonel Roy Mustang (for whom she has no love either) than to Alex. He still looks up to his FourStarBadass big sister, even though he understands the lack of respect she has for him. It's only when they fight together during [[spoiler: the siege on Central]] that he starts to regain some of that respect from her (even if she still can't stand his emotionalism).
* ''Anime/DragonBallZCoolersRevenge'': Frieza is hinted to have this with his StrongerSibling, Cooler. Cooler freely admits to finding Frieza nothing but a SpoiledBrat and a pest, and states outright that had Goku not killed Frieza, he gladly would have done the job for him; in fact, the ''only'' reason Cooler even bothers to go after Goku and [[AvengingTheVillain avenge him]] is because he believes that Frieza has sullied their FamilyHonor by letting Goku defeat him.

[[folder:Comic Books]]
* Snow White and Rose Red in {{ComicBook/Fables}}. They're mostly past it now, but flashes of their backstories reveal that Rose was once so jealous of Snow she behaved in ways that could fairly be characterized as evil.
* ''Franchise/{{Batman}}'':
** [[ComicBook/{{Nightwing}} Dick Grayson]] (the first Robin) and [[ComicBook/RedHoodAndTheOutlaws Jason Todd]] (Robin II), although it's almost entirely on Jason's side. Jason has inadequacy issues because he had to live up to Dick's example.
** Jason also has a rivalry with [[Comicbook/RobinSeries Tim Drake]] (Robin III), who he sees as his replacement. The New 52 mvoed them on from this, with both bonding over being outsiders and not being able to live up to Bruce's standards for them after Dick's tenure.
** Damian Wayne (Robin V) has a notable rivalry with Tim Drake, who he sees as his rival in not only being Robin, but in being Bruce Wayne's son (the two can't be in the same room without Damian whipping out the "you're adopted" insult), and essentially usurped Drake as Robin.
** Damian has issues with Jason as well, though more because of Jason's black sheep status and that both are similar in personalities.
* ''ComicBook/AfterlifeWithArchie'' presents Betty's relationship with Polly as a one-sided version of this. Polly is [[BigBrotherBully aggressive]] toward Betty, who is the younger sibling. Polly thinks her family considers her a disappointment and an embarrassment while Betty is the "good girl".
* In ''ComicBook/TheFlash'', there's Don and Dawn Allen (the Tornado Twins), the twin children of Barry Allen (The Flash II) and Wally West (Kid Flash/The Flash III). The twins themselves get along fine, but they have a ''very'' tense relationship with Wally, who they think Barry will always see as his ''true'' son (technically, Wally is Barry's nephew). In their defense, Barry ''does'' call Wally 'son' quite often, and the two agree that their relationship is a father-son relationship, so it's hard to blame them for the jealousy.
* ''ComicBook/LegendsOfBaldursGate'': As children, Delina's brother Deniak criticised her for not putting much effort into her magical studies, but when this angered her enough to manifest her wild magic, he changed his tune and became jealous of her instead. When he's found, he [[spoiler: has gone completely over the edge and wants to steal Delina's power with a ritual]].
* In ''ComicStrip/FoxTrot'', most of Jason Fox's screentime is spent harassing his sister Paige with pranks, squirt guns, his pet iguana, or numerous creative projects like comics or cartoons dedicated to insulting her[[note]]The prime example being his long-running comic "Slug Man", whose arch-nemesis is Paige-O-Tron, an evil robot with lethal body odor and exploding pimple bullets[[/note]]; this relates more to Jason's extreme GirlsHaveCooties attitude than out of any actual jealousy. Paige usually responds with violence, but she does occasionally prank him back; on top of this, both of them have a more subdued rivalry with their older brother Peter.

[[folder:Fan Fic]]
* In the Fanfic/{{Uplifted}} series, it is Hanala and Rael Jarva. While initially amicable, Hanala and Rael quickly come to resent each other once Hanala returns to the fleet completely changed by her experiences on Earth. Instead of the sweet girl he remembers, he is faced with a competitive, antagonistic and violent sister with a fundamental difference of opinion regarding the future of their people.
* ''Fanfic/CalvinAndHobbesTheSeries'' has [[StupidEvil Dr. Brainstorm]] and his younger sister Sheila.
* ''Fanfic/LuckyStarAfterStory'' has the Yoshida sisters, Tomoyo and Hiroko. Tomoyo is the older sibling at age 22 when she was introduced. Hiroko is the younger sibling at age 18 when she was introduced.
* ''Fanfic/EmpathTheLuckiestSmurf'' has Hefty and Handy as dueling twin brothers. Note that it is a ''friendly'' rivalry, as they both simply want to be recognized as being more important than the other. Tapper likens their relationship to be "like Esau and Jacob", with Hefty being Esau and Handy being Jacob.
* Played with in the ''Fanfic/MegsFamilySeries'', as Maddie and Stewie do occasionally act antagonistic towards each other, they're actually niece and uncle that are very close in age. Played straight when her parents take in her half-brother Cody (though she later gets over it).
* In ''FanFic/RiseOfTheTau'', it turns out that [[spoiler:the true reason the [[OurElvesAreBetter Eldar]] look down on humanity is because we are their younger sister species, the Children of Vaul to their Children of Isha]].

[[folder:Films -- Animation]]
* [[WordOfGod Gutierrez]] reveals that La Muerte from ''WesternAnimation/TheBookOfLife'' and her sister, La Noche, are rivals in everything.
* ''WesternAnimation/HowToTrainYourDragon'': Ruffnut and Tuffnut ''can'' work together as a team with a lot of effort... but they still spend more time beating the hell out of each other than they do fighting anything else.
* Marie and Berlioz are like this with each other in Disney's ''Disney/TheAristocats'' from 1970.

[[folder:Films -- Live-Action]]
* Played for laughs in ''Film/TheAdventureOfSherlockHolmesSmarterBrother''. When Sigerson Holmes is asked by Ormond Sacker whether he has a brother named Sherlock, Sigerson snaps that his brother's ''actual'' name is "Sheer ''luck''."
* Twin gunfighters Kid Shelleen (good) and Strawn (evil) in ''Film/CatBallou.'' Subverted in that no one ''knew'' Strawn was Shalleen's brother (due to his facial disfigurement) until after Shalleen shot him. Both were played by Lee Marvin.
* ''Film/{{Deewaar}}'': When Ravi becomes a police officer and Vijay a high-ranking criminal, they end up opposing each other even though they'd both rather not.
%%* ''Film/{{Gattaca}}''
* Tracy and Caroline Lord in ''Film/HighSociety'', with Caroline feeling herself the inferior sibling. She even (jokingly?) [[PrecociousCrush wishes she could marry Tracy's ex-husband Dexter]], if Tracy and he aren't [[ShipperOnDeck going to get back together...]] When he sings her a [[ValuesDissonance love song]], she "considers herself engaged", and then feels terribly guilty for "betraying her sister".
* Nick and Carly from ''Film/HouseOfWax2005'', along with a bucket of [[{{Twincest}} incestous]] subtext.
* Happens between Stanley and Roy in ''Film/InThisOurLife''. Stanley steals Roy's husband without a bit of remorse.
* The bulk of the plot of ''Film/JupiterAscending'' involves a feud between the three Abrasax siblings -- Balem, Kalique and Titus -- over ownership of the Earth. By the end of the movie, [[spoiler:Jupiter, who is the [[{{Reincarnation}} recurrence]] of the Abrasax Sovereign and the mother of all three, claims ownership of the planet, and possibly also a share of what Balem had left when he died]].
* ''Film/MeanGirls'' 2. Mandi and Tyler, though oddly the dislike comes entirely from his side and Mandi, despite being a bitch to everyone else, seems to have some sisterly feeling for him, even declaring him off limits to Chastity and calling his father (her stepfather) "''our'' Dad". He's also the only character she's never directly mean to.
%%* ''Film/TheRoyalTenenbaums''
* Thor and Loki in ''Film/{{Thor}}'', but it's much more bitter from Loki's point of view than Thor's [[spoiler:until Loki's FaceHeelTurn]]. Odin seemed to inadverently encourage this since he said that either one of them could be king.
** Taken UpToEleven in ''[[Film/ThorRagnarok Ragnarok]]'' when their [[spoiler: older sister]] Hela appears and turns out to be even more vindictive and fratricidal than Loki. As Odin's oldest child, she has no problem removing both little brothers from the line of succession if it benefits her.
* Patchi and Scowler in the ''Film/WalkingWithDinosaurs'' movie. Things only intensified when they get older (mostly Scowler [[DisproportionateRetribution attacking Patchi for "stealing" his herd]] on the frozen lake), but this ends up averted after Patchi saves him from the ''Gorgosaurus'' attack.
* Implied in ''Film/X2XMenUnited'', since Bobby Drake's brother Ronnie calls the cops claiming that Iceman and the others are holding his family hostage soon after finding out he is a mutant.

* Miles and Mark Vorkosigan from the ''Literature/VorkosiganSaga''. Given their respective capabilities it's a good thing they prefer to "score" by pulling each other's chips out of the fire.
* SiblingRivalry defines the Weasley family dynamic in Literature/HarryPotter, with each successive boy's efforts to outshine the others at ''something'' reaching its peak when Percy becomes an unctious, grasping prig. Fred and George may look like they've opted out of the competition but their goofball antics actually earn them a great deal of attention while Ginny's privileged position as the youngest and the only girl puts her on a level where none of the boys can compete. And poor Ron feels overshadowed by all of them. Being the best mate of [[TheChosenOne The Boy Who Lived]] doesn't always help, either, especially during those moments when it seems like Harry's become yet another (foster) brother with whom he cannot compete. Ron's ultimately successful attempt to overcome this personal demon represents a major turning point in the seventh book.
* [[DeadpanSnarker Edmund]] and [[PluckyGirl Lucy]] from ''Literature/TheChroniclesOfNarnia'' have this tendency in the first book, due to the fact that [[BigBrotherBully Edmund enjoys tormenting her]]. Peter calls him out at least twice.
** The [[Literature/PrinceCaspian first sequel]] has this with Susan and Lucy. Susan is angered that Aslan seems to favor Lucy, while Lucy is bitterly upset when Peter takes Susan's side because [[TeamMom she's older and (usually) wiser.]] It doesn't help that Susan is very stressed due to how they're in a Narnia very different from the one they knew, so she's unable to see things that Lucy actually ''can'' due to her unshakeable faith. [[spoiler: When she finally manages to do so, Susan apologizes to Lucy and confesses that she ''did'' want to believe her, but her inner fears held her back.]]
* Jo and Amy in ''Literature/LittleWomen'' have a minor one. They care for each other but often clash [[TheGloriousWarOfSisterlyRivalry due to their very different personalities and viewpoints]], and then Laurie falls in love with Amy, after loving Jo -- who only liked him as a friend, rejected his affections twice and then [[PairTheSmartOnes got together with her beta reader]]. At some point Amy even asks if he still loves Jo, and he assures her that he only loves Jo as a sister now.
* Creator/RogerZelazny's ''Literature/TheChroniclesOfAmber'' is centered on the convoluted rivalry and shifting alliances among seven siblings jockeying for their father's throne. (Not all of them want it, but they all have preferences as to who should get it, and perhaps more importantly strong opinions about whom they don't want to have it.) Corwin and Eric in particular take it to CainAndAbel levels, though in later books it becomes less clear which one is which.
* ''Bury Him Among Kings'' is a UsefulNotes/WorldWarI novel by Creator/EllestonTrevor about an intense SiblingRivalry between an AloofBigBrother and a younger brother who feels AlwaysSecondBest. At the climax the elder brother's patrol gets trapped in no-mans' land and the younger brother has to choose between leaving him to die and risking his own life to save him.
* RobinHood in all of its many versions: the underlying plot driver is the sibling rivalry between King Richard and Prince John and in some versions Will Scarlet is Robin's illegitimate half brother.
* ''Literature/SeptimusHeap'': Septimus and Simon, about the [=ExtraOrdinary=] Apprenticeship.
* In ''Literature/ASongOfIceAndFire'', House Frey take this to extremes. Lord Frey is on his eighth wife and has children by all of the previous seven, as well as several illegitimate children and plenty of grand- and great-grandchildren. There is so little love lost between them all that news of a family death elicits more calculation of the effect on the line of succession than grief. It is especially bad between Edwyn and "Black" Walder Frey, two great-grandsons of Walder Frey who hate each other and each aspire to be Lord of the Crossing.
** Also the Baratheon brothers, who are not very close to each other. When Robert dies, Stannis and Renly take it to the max - fighting for the Iron Throne with each other and with their supposed nephews. However Stannis is more justified, as Robert's eldest brother his claim to the throne is better then Renly, who is a vain greedy jerk who decides to usurp the Iron Throne basically on AppealToForce and intends to kill Stannis, [[spoiler:but is killed by a shadow assassin conjured by Stannis' sorceress before he can do so. It is left unclear if Stannis is aware of his role in his brother's death.]] However Stannis does reveal to [[TheLancer his loyal Knight]] Davos Seaworth that he did love his brothers and wished for their appreciation, he is saddened at their death.
** The Dance of the Dragons, a civil war between two branches of the Targaryen dynasty, came about due to the enmity between Princess Rhaenyra, King Viserys I's only surviving child by his first wife Aemma Arryn, and Viserys' children by his second wife Alicent Hightower. Rhaenyra's three eldest sons had a massive enmity with Alicent's three sons, Prince Lucerys Velaryon being slashing out Prince Aemond Targaryen's eye in a fight. When Viserys died Rhaenyra and her eldest half-brother Aegon II fought over the throne, in the process wiping out nearly all the Targaryens and dragons.
** There was also this between the children of Aegon IV "The Unworthy", who sired numerous bastards but only one legitimate son Daeron. Their father was partially responsible for this, Aegon hating Daeron and trying to make one of his bastards heir, even legitimizing them all on his deathbed. This led to his eldest illegitimate son Daemon Blackfyre eventually rebelling against Daeron. There was also the enmity between Aegor Rivers "Bittersteel" and Brynden Rivers "Bloodraven", who were sired on mothers from one of the biggest cases of FeudingFamilies in Westeros, and supported different sides in the Blackfyre rebellions, Aegor spending much of his life trying to put a Blackfyre in the Iron Throne, and Brynden taking extreme measures to prevent this.
* Occurs in the ''Literature/TalesOfTheBranionRealm'' fantasy series among the royal family of the titular country.
** In book 1, the heir's [[GodSaveUsFromTheQueen mother]] believes him to be soft and unworthy -- his younger sister, however, is ruthless, tough, and viewed as a better potential ruler. Cue sibling rivalry.
** In book 3, the royals are all bastards, following opposing religions. The first and third [[RebelLeader lead]] LaResistance against their father, while the second does his best to thwart them.
* In ''Literature/GalaxyOfFear'', for the most part Tash and Zak get along very well. They're a year apart and both are [[OrphansOrdeal traumatized by losing their family]] and have to cooperate in their struggles to survive with a ResentfulGuardian who takes them from one dangerous place to another. As they adjust more fully, their guardian comes to like them more, and they acquire skills that help them with the danger, they don't need each other as much and develop more individually. While they never stop looking out for or loving each other, and they tend to have different enough interests that much competition is averted, elements of this creep into the later books of the series. Particularly ''The Hunger'', in which Zak starts feeling like TheUnFavorite.
* Much of the plot of ''Literature/TheChathrandVoyages'' is ultimately revealed to have been set in motion by sibling rivalry by way of {{Evil Sorcerer}}s. [[BloodMagic Arunis]] and [[EvilAlbino Macadra]] are brother and sister, approx. three thousand years old, on-and-off conspirators and perpetual rivals who are each determined to become the most powerful magic-user in history, whatever it takes. Arunis intends to unleash [[EldritchAbomination the Swarm of Night]] to destroy the world, so that [[GodOfEvil the Night Gods]] will be impressed enough to make him one of them; Macadra is less omnicidal, having subverted the empire of Bali Adro to use as her tool to TakeOverTheWorld. Both their plans hinge on [[ArtifactOfDoom the Nilstone]]- which from the end of the first book on, the protagonists happen to have, leaving them caught between the two.
* There is an eleven-way rivalry between the Malagash princes in ''Literature/ChroniclesOfMagravandias'', but particularly bad are Gastern, Almorante, and Bayard. They are the strongest three, the others tend to latch onto whichever brother they like best or fear most. Their sister Varencienne refuses to have anything to do with it.
* ''Literature/WarOfTheSpiderQueen'' has this in the backstory, between Pharaun's siblings Greyanna and Sabal. Pharaun got involved in the rivalry, supporting Sabal. Greyanna killed Sabal, [[spoiler: but Pharaun killed Greyanna]].
* In ''[[Literature/TheShatteredKingdoms Blood's Pride]]'', this is a serious problem for the family of the governor of the Shadar. He had four children. One was [[OffingTheOffspring abandoned as a child]] because of a physical "deformity". The other three have decidedly rocky relationships. Eofar, the only son, doesn't actually like the power-and-glory focus of his culture very much, and clashes with his sister Frea, who likes those things just fine and considers Eofar to be weak. The youngest daughter, Isa, (initially) wants to a proper Norlander, which gives her a measure of conflict with both (since Eofar tries to dissuade her and Frea is the person her culture says she has to beat to prove herself worthy). The situation is not helped by the secrets they keep from each other - Eofar knows that Frea's dreams of a glorious homecoming are impossible but doesn't say so; Frea inadvertently caused the death of their mother in order to prevent the rescue of the abandoned daughter, then blamed the death on Isa; and Isa was accidentally the cause of the abandonment (and also knows Frea's secret but has been pretending not to). And ''then'' the abandoned daughter, Lahlil, turns out to be a) not dead; and b) rather dangerous.
* ''Literature/HowTheMarquisGotHisCoatBack'' has Peregrine and [[spoiler:the Marquis]]. It's outright stated that [[spoiler: the Marquis ''became'' the Marquis]] out of an urge to compete with Peregrine.
* ''Literature/TheBible'' especially [[Literature/BookOfGenesis Genesis]] has this as a recurring theme to the point that it named two tropes CainAndAbel and JacobAndEsau. A major turning point in Genesis is Joseph's story where he subverts this trope and forgives and reunites with his brothers.
* In ''Literature/StarCursed'', the sibling rivalry between Cate and Maura becomes worse when there's debate on who is the chosen one of the prophecy. Maura is sure she is it, Cate isn't sure she wants to be it, but thinks Maura is too impulsive to shoulder the responsility. [[spoiler: Turns out, younger sister Tess is it. Cate doesn't tell Maura, because she doesn't know how Maura will react.]]
* Common trope in the works of V.C. Andrews:
** ''Literature/MySweetAudrina'' has [[spoiler:Audrina and Vera]], as well as a rather disturbing example with Audrina's mother and aunt
** Dawn and Clara Sue in the Cutler series. Later Lillian and Emily as well.
** Heaven and Fanny in the Casteel series
* In the ''Literature/WarriorCats'' arc ''Omen of the Stars'', there's Dovewing and Ivypool: Dovewing is TheChosenOne and has special powers, and wishes she could be normal like every other cat; her sister Ivypool is normal but is jealous of all the attention her sister gets. There is plenty of friction between the two as a result.
* ''Literature/TheWitchlands'' has Merik and Vivia Nihar, whose rivalry is based aroud their methods of dealing with their country's problems and the question of who's going to inherit the throne, as each of them believes the other to be an EvilPrince.
* ''Hons and Rebels'' by Jessica Mitford: Mitford became a Communist in the 1930s, her sisters Unity and Diana became Fascists.
--> Sometimes we even talked of what would happen in a revolutionary situation. We both agreed we’d simply have to be prepared to fight on opposite sides, and even tried to picture what it would be like if one day one of us had to give the order for the other’s execution.


[[folder:Live-Action TV]]
%%* Pretty much the whole idea behind Series/TheBradyBunch.
%%* The Smother's brothers, of course. "Mom liked you best!"
%%* Bud and Kelly from Series/MarriedWithChildren.
* ''Series/{{Frasier}}'':
** The Crane brothers fairly run on this trope. Even when they're not actively feuding or competing, they bicker constantly and aspire to out-snark, out-class, and out-psychoanalyze each other on a daily basis, often without even realizing what they're doing. When [[ItMakesSenseInContext they wound up in couples therapy with a renowned marriage counselor]], he told them that they would ''never'' stop fighting as long as they lived, unless they never spoke to each other again. Of course they reject this as a solution because they acknowledge that ultimately they love each other too much (and because the therapist got his degree in Aruba).
** In one episode, after yet more rivalry-fuelled chaos and humiliation, when the two gather to lick wounds and bemoan their competitiveness Frasier has a realisation and points out that, contrary to the usual purely-negative implications of the trope, their rivalry has actually had some positive effects in their lives, as it's also spurred them on to greater success and happiness.
** On a more episodic scale, Daphne becomes extremely jealous of Frasier's new girlfriend, Claire, because she and Martin take a huge shine to each other and begin acting like father and daughter (and Martin starts enthusiastically [[ShipperOnDeck shipping]] Claire with Frasier). Daphne has always been [[LikeASonToMe as close to an adopted daughter to Martin as it is possible to be]], and responds to this new competition by furiously vying with Claire for Martin's attention.
---> '''Martin''' (about Claire): Don't you love her laugh? It's like music.\\
'''Daphne''' (anxiously): You-you used to think my accent sounded musical. Didn't you?....[[AffectionateNickname Marty?]]\\
'''Martin''': Oh yeah, but now I'm used to it.
* ''Series/{{Friends}}'': PlayedForLaughs with Ross and Monica. They clearly love each other and will defend one another when the chips are down, but they have a pretty typical sibling rivalry. They squabble, bicker, argue, fight, and don't always get along -- and compete with each other on a lot of crap, ''especially'' when it comes to their parents' approval. Ross is [[ParentalFavoritism the golden boy]] to their parents while Monica... [[TheUnFavourite isn't.]]
--> ''(Ross and Monica tattle-tale on each other to their parents in one long TruthTellingSession)''\\
'''Monica:''' Mom! Dad! Ross smoked pot in college!\\
'''Mr. and Mrs. Geller:''' What?!\\
'''Ross:''' You are such a tattletale! Mom, Dad, you remember that-- that time you walked in my room and smelled marijuana?\\
'''Mr. and Mrs. Geller:''' Yes.\\
'''Ross:''' Well I told you it was Chandler who was smoking the pot but it was me. I'm sorry.\\
'''Mrs. Geller:''' It was you?\\
'''Monica:''' And Dad, you know that mailman that you got fired? He didn't steal your Playboys! Ross did!\\
'''Ross:''' Yeah, well, Hurricane Gloria didn't break the porch swing, Monica did!\\
'''Monica:''' Ross hasn't worked at the museum for a year!\\
'''Ross:''' Monica and Chandler are living together!\\
'''Monica:''' Ross married Rachel in Vegas! And got divorced! ... ''Again''!\\
'''Phoebe:''' I love Jacques Cousteau!\\
'''Rachel:''' I wasn't supposed to put beef in the trifle!\\
'''Joey:''' I wanna gooooooo!\\
'''Mrs. Geller:''' That's a lot of information to get in thirty seconds...
* ''Series/GameOfThrones'': Cersei displays an open animosity towards Tyrion, which gets incensed when their father entrusts him with power. She has wished the death of Tyrion since the day he was born. Tyrion doesn't reciprocate beyond the occasional quip because intellectually and humanely, he's way above her level. She also harbors some resentment over Tywin favouring Jaime.
* While Jackson and Miley compete a fair amount, since Jackson is the ButtMonkey Miley usually ends up on top on ''Series/HannahMontana''.
* Stefan and Damon Salvatore from ''Series/TheVampireDiaries''. Stefan and Damon were best friends before Katherine Pierce came between them, changing the relationship between the Salvatore brothers forever. The rivalry only got more intense when both brothers end up competing over Elena Gilbert, Katherine's doppelganger.
* [[GreyAndGrayMorality Justin and Alex]] from ''Series/WizardsOfWaverlyPlace'', although they reached [[CainAndAbel new]] [[FoeYay levels]] in their [[BelligerentSexualTension relationship]].
* ''Series/KirbyBuckets'' with his older sister Dawn, as she's always been TheUnfavorite in their parents' eyes. It's taken to a point where Dawn is knocked into a coma by Kirby and the only way to wake her up is for Kirby to shout mean things to her.
* Mary and Buddy from ''Cake Boss'', although they're not so much "rivals" as "she's determined to drive her brother insane on camera ForTheEvulz" by losing cakes, seemingly erasing a recording that Buddy was going to use as a special effect, coercing a client into painting the baking room a hideous Pepto-Bismol pink, selling a pre-sold batch of crumb cake ''and then demanding an amazing birthday cake''. Naturally, [[MamaBear Momma]] has to make sure they don't kill each other. Additionally, Buddy has three other sisters but they don't drive him anywhere near as crazy as Mary does.
%%* Siegfried and Tristan from ''Series/AllCreaturesGreatAndSmall''. "''Don't'' call me baby brother!"
%%* Bridget and her brothers in ''Series/BlueWaterHigh''.
* Shawn and Danny Farrell from ''Series/TheFortyFourHundred''. Exacerbated by Shawn getting superpowers [[spoiler: and Danny's girlfriend.]]
* ''Series/ArrestedDevelopment'': Michael and Gob Bluth constantly work against one another to get their father's approval (as well as for other reasons). [[AbusiveParents He actively encourages this, well into their adulthood]].
* Series/{{Sherlock}} [[InsufferableGenius Holmes]] and his brother [[MagnificentBastard Mycroft]] in the 2010 BBC series.
--> '''Mycroft''': He's always been so resentful. You can imagine the Christmas dinners.
--> '''John''': Yeah... no. God, no.
* ''Series/{{Elementary}}'''s version of the Holmes brothers have a similarly contentious dynamic. [[spoiler:Mycroft, after surviving cancer, is quite keen on repairing their contentious relationship.]]
* Ray and Robert Barone in ''Series/EverybodyLovesRaymond''. The show's title references Robert's resentment towards Raymond for being [[ParentalFavoritism their parents' favorite]].
* While not actual siblings (though they are PlatonicLifePartners) CJ and Toby from ''Series/TheWestWing'' are a lot like this trope, constantly sniping at and being passive-aggressive to each other while vying for Jed or Leo's attention and approval the way siblings do for their parents.
* ''Series/TheBorgias'': The two eldest Borgia siblings, Cesare and Juan, ''despise'' one another. The [[MagnificentBastard cunning, intelligent Cesare]] bitterly resents the fact that his father practically forced him to become a Cardinal while his TooDumbToLive, SpoiledBrat little brother becomes heir to the family estate and gets the military position he himself always wanted. And Juan, fully aware that everyone thinks he's an InadequateInheritor, becomes wildly insecure about his position of power (and over-compensates for it by being an arrogant idiot).
* ''Series/TheHardyBoysNancyDrewMysteries'': Of the good-natured, teasing variety between Frank & Joe Hardy, though all bets tended to be off when both brothers were interested in the same female...and Frank wasn't above shoving all the heavy physical work off on Joe, either. And don't get Joe started when Nancy Drew and Frank were anywhere in the same room together...
* Suggested but ultimately averted in a episode of ''Series/{{Bones}}'', when Booth's son Parker met his newborn baby sister Christine. At one point, Parker was seen taking a pair of scissors to some family photos, indicating that he was jealous of his new baby sister. [[spoiler: At the end of the episode, it was revealed that he adored Christine and was cutting the photos to create a mobile to hang over her crib.]]
* On the singing competition ''Series/NashvilleStar'', Angela Hacker and her young brother, Zac Hacker, were respectively the winner and runner-up of Season 5.
%%* Mary and Edith Crawley of ''Series/DowntonAbbey'', quite viciously.
%%* Bud and Mikey Roberts of ''Series/{{JAG}}'', although only on rare occasions.
* Subverted in ''Series/MalcolmInTheMiddle''. While Malcolm and Reese jockey constantly for dominance over trivial things (due largely to their close ages), persistent jealousy, competition, or resentment over big issues, either from Reese over Malcolm's intelligence, or from Malcolm over Reese's happiness, is conspicuously absent from their relationship.
* Jaye and Sharon in ''Series/{{Wonderfalls}}''. Despite reconciling in the very first episode, they snip and fight over the course of the series. Possibly at its best when Jaye takes an entirely unprovoked shot at Sharon in an article that her family doesn't even know Jaye wrote:
--> "...a place where a mother's love, a father's compassion, a brother's protection, and a sister, [[CrowningMomentOfFunny thirty-five]]...
* ''Series/{{Smallville}}'': Oooooooh boy. The [[AlternateUniverse Earth-2]] trio of [[BitchInSheepsClothing Lex]], [[BastardBastard Tess]], and [[EvilOverlord Clark]] have this pretty severely. All three of them are technically evil due to being raised by [[AxCrazy E-2]] [[TheSocialDarwinist Lionel]], it does frequently devolve into CainAndAbel, but most of the tension between the three is focused in their desires to just not be the one Lionel [[TheUnfavorite stops caring about]]. Lex lost before the Earth-2 universe was on the show, but a [[BrotherSisterIncest twisted]] version of this was still clearly present to a degree between Clark and Tess.
* The point of the series ''Series/NickyRickyDickyAndDawn''. The four ten-year-old quadruplets have nothing in common.
* ''Series/TheRanch'' : Colt and Rooster's relationship runs on this.
--> Rooster: I had to shovel shit while you abandoned your family so you could travel the world, for fifteen years.
* ''Series/TheGoodPlace'': Tahani had this towards her sister, feeling she was {{always second best}}. Her desire to prove herself came up again when she learned she was second to last ranked in the Good Place neighborhood.
* Robbie and Charlene Sinclair from ''Series/{{Dinosaurs}}'' are constantly at each others' throats and have a tendency to engage into petty arguments and taunt each other.

* "Sibling Rivalry", a duet performed by [[WesternAnimation/TheSimpsons Bart and Lisa Simpson]] from ''Music/TheSimpsonsSingTheBlues''.
* "My Sister" by Juliana Hatfield Three
-->"I hate my sister/she's such a bitch"
* ''Music/KidsPraise'': Melody and Harmony, two of Psalty's triplets, argue a bit in the third album about whose musical part is more difficult.

[[folder:Professional Wrestling]]
* Faby and Mary Apache's rivalry dates back to at least their ARSION days and at one point got intense enough for Fabi, who usually came out on the losing end, to take Mari's hair in an Wrestling/{{AAA}} wager match. Their record as a team is ultimately better than against each other though.
* Dennis Rivera and Savio Vega in IWA Puerto Rico and the World Wrestling League, both generally being baby {{face}}s[=/=]tecnicos but Vega being the corporate minded, cool and aloof while Rivera is the [[SpicyLatina hotheaded, rebellious and confrontational]].[[/folder]]

* ''Theatre/TheLionInWinter'' has this trope in spades as Prince Richard, Prince Geoffrey and Prince John all angle to become the heir to their father's throne.
* In ''Theatre/TwiceCharmed'', Anastasia and Drizella compete over who will win the Prince.
* The Theatre/MrsHawking play series: Though it is mostly good-natured, Nathaniel and his older brother Justin are constantly trying to get each other's goat. Justin boasts of his carefree, fun-filled life full of travel and romance, while Nathaniel is the golden boy who always has the approval of everyone else in the family.

[[folder:Video Games]]
* ''VideoGame/TeamFortress2'': The reason why RED and BLU are fighting is because of a historic feud between brothers Redmond and Blutarch Mann.
** Note that this rivalry started as soon as the two were born and had a chance to look at each other, and not even ''death'' stopped it, as they just got back up as ghosts and tried to get their mercs to send the other sibling to hell first.
%%* Magina the Anti-Mage and Terrorblade the Soul Keeper in Dota
* VideoGame/{{Tekken}} has the beautiful Nina and Anna Williams. That's 20+ years in the making.
* ''VideoGame/BlazBlue'' has two of the main characters, [[AntiHero Ragna the Bloodedge]] and his brother, [[{{Jerkass}} Jin Kisaragi]]. Even after both characters are working on the same side in the [[VideoGame/BlazblueChronophantasma third game]], they still can't stand each other.
* In ''VideoGame/GrandTheftAutoIVTheBalladOfGayTony'', Brucie (who appeared in GTA IV) and Mori Kibbutz are major rivals. Mori was part of the Isreali military, had a 4.0 in Ivy League schools, and is in better shape than his brother (they're both obsessed with working out). Try as he might, Brucie can't seem to compare to him. To add to this, Mori's a {{Jerkass}} to Brucie. [[CrowningMomentOfAwesome After watching Brucie getting tormented for several missions he finally gets fed up and decks Mori, breaking his nose.]] During the credits it shows them facing off in the LC Fight Club.
* Main character Hawke and younger brother Carver in ''VideoGame/DragonAgeII'' are naturally predisposed to this. Carver has a lot of inferiority issues that don't really get better as the game progresses, though he and Hawke still love and care for each other as siblings. It doesn't help that the only way Carver will survive is if Hawke is a mage; chances are good that Carver will join the Templars, the very people who police/oppress mages.
** If Bethany survives instead, party banter will also make references to this being Carver's relationship to her. Apparently he didn't take it well when his twin turned out to be the only magical child while he was normal, which was aggravated further by being an inferior warrior to their elder brother/sister. It's also possible to set up a sibling rivalry between Hawke and Bethany, but [[BigBrotherInstinct the player really has to work for it]].
* This is the essence of the entire plot of ''VideoGame/BaldursGate'', starting with Charname fighting against [[spoiler: his half-brother Sarevok]] in the first installement and culminating in a war between Charname and [[spoiler:the other 5 strongest children of Bhaal]].
* [=GLaDOS=] in ''VideoGame/{{Portal 2}}'' does this deliberately to the co-op robots Atlas and P-body. Though it's hard to ascribe a term like 'siblings' to a [[CyberCyclops pair of one-eyed]], [[AmbiguousGender genderless]] [[CuteMachines androids]], they are evenly-matched partners, built at the same time, who [=GLaDOS=] will occasionally try to pit against each other. (ForScience, and also [[ComedicSociopathy her own amusement.]])
--> '''[=GLaDOS=]''': "Excellent work, Blue. Blue is awarded one hundred [[ThePointsMeanNothing science collaboration points]]. ''Orange...'' [[WellDoneSonGuy Keep up the mediocrity.]]"
* ''VideoGame/LeagueOfLegends'' has a few of these.
** Kayle and Morganna have this in the OrderVsChaos variety. Both come from a race of [[OurAngelsAreDifferent creatures that are essentially angels]] who upheld order throughout the universe, with Morganna being the FallenAngel who saw their form of order as tyranny against individuality, and Kayle being the stoic general who must now bring her sister to justice.
** Nasus and Renekton are brothers who were once protectors of a place called the Great Library. Renekton protected it from evil, but over time he became more and more unstable as he fought more evildoers. Eventually it undid his sanity, and he turned on his brother. Before the two could settle their score, they were pulled through to Runeterra by the league's summoners. While Nasus offers his knowledge to the summoners, Renekton wants nothing more than to see his brother dead.
** There are other siblings who aren't hostile to each other in the lore, but that doesn't stop them from being pitted against one another in League matches. This can include Garen vs. Lux, Katarina vs. Cassiopea, and Darius vs. Draven.
* In ''VideoGame/DefenseOfTheAncients'', at first the Slayer Lina Inverse and Crystal Maiden Rylai Crestfall have no business each other, but in ''VideoGame/{{Dota 2}}'', they were retconned into sisters (losing their surnames) and their rivalry was said to be 'the stuff of legends' beyond their [[PlayingWithFire opposing]] [[AnIcePerson elements]]. Rylai is a little more naive and friendly, but Lina is said to have more advantage for being smarter and guile. They're both by default on the Radiants, but this won't stop them from being pitted for a CatFight.
* In ''VideoGame/HeroesOfMightAndMagic II'', the rivalry between Roland and Archibald Ironfist for their late father's throne drags all of Enroth into war (the older Archibald being the more evil of the two). Despite this, the brothers still care about each enough to keep their rivalry from reaching CainAndAbel levels. Neither brother is willing to actually kill the other in their ending. Canonically, Roland wins, and he has Archibald TakenForGranite (which in this setting isn't too bad). In a later ''VideoGame/MightAndMagic'' game, the brothers ultimately settle their differences when Archibald helps save Roland from the Kreegans and Roland convinces his wife Catherine (who is less inclined to be merciful to Archibald) to exile Archibald instead of executing him.
* Dante and Vergil in the ''VideoGame/DevilMayCry'' series. Including [[VideoGame/DmCDevilMayCry its reboot]].
* In ''Armello'', Fang and Thane Greymane are both sons of the Wolf Clan Alpha. As the firstborn, Fang was supposed to be next in the line of succession but was exiled; thus leaving Thane the sole heir to their father. However, Fang eventually returns to join the fight for the throne, even if it means going up against his younger brother.
* Usually Mario and Luigi from ''Franchise/SuperMarioBros'' are on good terms but their relationship occasionally has shades of this. One example of this is Mario lightly grinding Luigi's foot if he wins against him in ''Mario Power Tennis''.
* ''VideoGame/CliveBarkersUndying'': The twins Aaron and Bethany, who were bitter rivals. [[spoiler: [[AndIMustScream Bethany won]].]]

[[folder:Visual Novels]]
* ''VisualNovel/UminekoWhenTheyCry'' has this as a major part of the basic premise, with the adults squabbling over Kinzo's inheritance.
* Shizune and her younger brother Hideaki have one in the [[WhatCouldHaveBeen beta version]] of ''VisualNovel/KatawaShoujo''. It's mostly one-sided. Hideaki strives to be better than Shizune as he is the heir to their family business (because their father finds Shizune unsuitable due to being deaf) but feels his father is choosing him simply because Shizune's disability, rather than his own merits.
-->'''Hideaki''': I have to be better than her. More driven and more competitive. Better. Faster. Stronger.
-->'''Hideaki''': Every morning I wake up, and brainstorm ways in which I can put myself above Shizune, or lower Shizune's power. When I eat breakfast, I think 'I am going to eat this so I can gain sustenance from it and stay alive so I can surpass Shizune.

[[folder:Web Animation]]
* ''WebAnimation/ADayWithBowserJr'': Ludwig and Bowser Jr, even though it is mostly one-sided on Ludwig's part.
* ''WebAnimation/{{RWBY}}'': When Jacques strips Weiss of her [=SDC=] inheritance in favour of Whitley, Weiss concludes that Whitley has deliberately crafted the image of the perfect son to be regarded as the only suitable inheritor once Jacques loses all patience with his rebellious daughters. Weiss accuses Whitley of not liking his older sisters because he's jealous of abilities they possess that he does not. Whitley claims the only way to handle their father is to become what their father wants them to be and dismisses her accusations of sibling jealousy by claiming that he doesn't even approve of the concept of huntsmen, let alone want to be one.

* Beef, Walky, and Sal in ''Webcomic/ItsWalky'', ultimately with tragic consequences.
** Elsewhere in the Webcomic/WalkyVerse, Robin and Roz [=DeSanto's=] [[TheGloriousWarOfSisterlyRivalry Glorious War Of Sisterly Rivalry.]]
** In ''WebComic/DumbingOfAge'' it's just Sal & Walky, Sal not having been SwitchedAtBirth with Beef in this continuity. She's still TheUnfavorite, though.
* Dave and his Bro in ''Webcomic/{{Homestuck}}''.
* Maerril and Aeliss of ''Webcomic/{{Juathuur}}'', as shown [[http://oneway.juathuur.com/466/?strip_id=548 here.]]
* David and [[strike:Dick]] Richard of ''Webcomic/AtomicLaundromat'', at least as far as Angela is concerned.
* {{Half Identical Twin}}s Elliot and Ellen Dunkel from ''Webcomic/ElGoonishShive''. Ellen just lives to tease Elliot, but God help anyone who actually hurts his feelings.
** Token muggle Sarah Brown appears to have a (possibly one-sided) rivalry going with her elder sister, IntrepidReporter Carole.
* In ''Webcomic/TrueVillains'', Sebastian is on the side of evil and [[spoiler:his sister, Alyssa, is on the side of good.]] It leads to fights. To the death.
* Cassie and Patrick in ''Webcomic/TimesLikeThis''. Their nicknames for each other are "Cass-hole" and "Pat-prick"... though they're more used [[InsultOfEndearment in loving jest]] these days.
** In [[http://timeslikethis.com/?id=121 this strip]], present-day Cassie has to deal with the Patrick of 10 years ago.
** There's now a FanFic that explores the implications of [[http://www.scribd.com/doc/105889638/This-Time Patrick finding out about Cassie's time traveling.]]
* Charlotte and Angela Olsen from ''Webcomic/TheOverture'' are consistently fighting and bickering among each other for there mother's affection. It gets so out of hand that the two [[spoiler: physically fight while there mother begins labor.]]
* From ''Blog/SliceOfLife:''
** Pound and Pumpkin get into this periodically on a good-natured basis.
-->'''Pumpkin:''' "Is Pound in trouble?"\\
'''Mrs. Cake:''' "No, he's not in trouble."\\
'''Pumpkin:''' "Can he be?"
** Mr. Cake is implied to have one with his brother Gateau, who is more handsome and muscular than he is.
* Koon Eduan from ''Webcomic/TowerOfGod'' has so many children and the [[BigScrewedUpFamily tension in his family]] can get that large that he made it simple: at age ten, all Koon's must fight one of their siblings in a one-on-one match. Losers leave the family.
* One of ''Webcomic/{{Godslave}}'''s hiatus strips suggests that this is the source of conflict between Heru and Anpu.

[[folder:Web Original]]
* Remy Kim and Josee Trembley of ''Roleplay/SurvivalOfTheFittest'' v4, who both see themselves as TheUnfavorite to their mother, and have been known to attempt to "regain" her love from the other twin.
* In an Easter Egg in the "hide and seek" [[WebAnimation/HomestarRunner sbemail]], Strong Bad's animatronic decoy and Grape-Nuts Speak'n'Spell robot get into an argument like this.
* Played a little more seriously in ''Literature/PayMeBug'', where Velis Enge is the leader of a black ops team that's blackmailing her brother, Grif Vindh, into a very dangerous mission.
* Lifty and Shifty the thieving raccoon twins from ''WebAnimation/HappyTreeFriends'' get along fine most of the time, but tend to turn on each other when their greed gets the better of them. Shifty has even been known to kill Lifty on occasion.

[[folder:Western Animation]]
* Dexter and Dee Dee, the two main characters of ''WesternAnimation/DextersLaboratory'' have fights and arguments that almost always result in mishap and mayhem.
* [[WesternAnimation/TheSimpsons Bart and Lisa Simpson]]
** They even do a song about it on ''Music/TheSimpsonsSingTheBlues''.
* Zuko and Azula from ''WesternAnimation/AvatarTheLastAirbender'', to CainAndAbel levels. Katara and Sokka also had this as well.
** Lin and Suyin Beifong from ''WesternAnimation/TheLegendOfKorra'' spent much of their early life competing for their mother Toph's attention. This rivalry turned ugly when Su badly scarred Lin when the latter tried arresting the former for participating in a robbery, and they did not speak with one another for thirty years afterwards.
** Also from Legend Of Korra (Possibly worse) is Tenzin and his older siblings Bumi and Kya. Tenzin was the favorite of their father Aang, being the only airbender of the three children, and as a little boy his older siblings beat up and bullied him frequently. As adults their relationship is still rather prickly.
* Megabyte and Hexadecimal in ''WesternAnimation/ReBoot'', also to CainAndAbel levels(Though both are evil).
* WesternAnimation/{{Daria}} and Quinn.
** Their mother, Helen, very much had this with her older sister, Rita, over perceived ParentalFavoritism. The youngest sister, Amy, likes to think of herself as the detached outsider but turns out to be NotSoAboveItAll. Witnessing all this between their mother and aunts prompts Daria and Quinn to start improving their relationship to avoid a GenerationXerox.
* Wanda and Blonda in ''WesternAnimation/TheFairlyOddparents''
* Fry had a rivalry with his brother Yancy in the {{backstory}} of ''WesternAnimation/{{Futurama}}'', with a recurring theme of Yancy stealing Fry's ideas and stuff. To the point where it seemed like he'd stolen Fry's name after his disappearance! [[spoiler: It turns out Yancy named his son in memory of the disappeared Fry, [[CrowningMomentOfHeartwarming who went on to accomplish everything he dreamed of]].]]
* Drew and Stu Pickles from ''WesternAnimation/{{Rugrats}}'' have been arguing and fighting since they were babies, as seen in a flashback episode.
* ''WesternAnimation/RocketPower'' had two cases of this. Most notably Twister and his older brother Lars when their respective crews compete against each other in a hockey match or some other contest. Also, one episode took Otto and Reggie's rivalry on the snowboard slopes UpToEleven with a major DownerEnding.
* Stewie and Bertram from ''WesternAnimation/FamilyGuy'', even though they're really half-brothers. There was even an episode with the same name as this trope involving them.
* In ''WesternAnimation/Thundercats2011'' Tygra is Lion-O's adoptive brother. They have a pretty good rivalry going on, with Tygra always seeming to come out on top in "everything except the crown". Still, they're close enough that Tygra helps bail Lion-O out of a fight with an angry mob, saying he's always got his brother's back.
* ''WesternAnimation/SouthPark'''s Stan Marsh is constantly abused by his older sister Shelley, both mentally and physically. To the point where some of it [[EditedForSyndication couldn't even make the air]]. She will frequently refer to him as "turd", along with everyone else she refers to. Shelley was actually [[WriteWhoYouKnow modeled after co-creator Trey Parker's own sister]], who abused him similarly as a child.
* ''WesternAnimation/UncleGrandpa'' and his brother Santa Claus have a tenuous relationship stemming from a 1983 talent competition that went awry. Though they do eventually manage to bury the hatchet.
* ''WesternAnimation/YogisGang'': Downplayed with the Envy Brothers. During their episode, they never oppose each other for anything and work together without any disagreements towards the goal of becoming owners of the circus where they work as trapezists. When they're discovered and fired, however, they set a new goal for themselves by wanting to become astronauts and argue over who'll become the pilot and who'll become co-pilot.
* The ''WesternAnimation/BikerMiceFromMars'' episode "Mad Scientist Wanted" featured a pair of alien executives who were brother and sister named Eon and Era. They both argued with each other and tried to prove that their choice was the better one to their father and boss Mr. Century.

[[folder:Real Life]]
* [[UsefulNotes/FormulaOne Michael Schumacher and Ralf Schumacher]]. Downplayed though, their rivalry was never played up as much as Michael's rivalry with other drivers.
* [[UsefulNotes/NationalFootballLeague Eli and]] Creator/PeytonManning. Of course, pretty much every football fan in America would [[Music/TheLonelyIsland JIZZ IN HIS PANTS]] were they to face one another in the UsefulNotes/SuperBowl - but with Peyton retiring after the 2015 season, it won't happen now; the closest approach was the 2007 season (Peyton's Colts were upset by the Chargers in the Divisional Round; Eli's Giants won the Super Bowl over the hitherto undefeated Patriots). In their regular season matchups, Peyton proved himself to be the better Manning, defeating Eli all three times. They have played the trope for humor in a TV commercial that showed them playing juvenile pranks on each other while visiting the NFL Hall of Fame with their parents.
** The Harbaugh brothers, who were both NFL coaches in the early 2010s (Jim is now back coaching in UsefulNotes/{{colleg|iateAmericanFootball}}e at his alma mater of [[UsefulNotes/UniversityOfMichigan Michigan]]), are another American football example. They have coached against each other twice, on Thanksgiving Day in 2011 and in the Super Bowl in February 2013 (nicknamed the "Harbaugh Bowl" or "[=HarBowl=]" for obvious reasons). John's Baltimore Ravens defeated Jim's San Francisco 49ers both times.
* Averted by Venus & Serena Williams who subjected the world to several lackluster UsefulNotes/{{tennis}} finals since they couldn't seem to go all-out against each other.
* Liam and Noel Gallagher, formerly of Music/{{Oasis}}. There's a bootleg single titled "Wibbling Rivalry" which is just 15 minutes of the brothers hurling abuse at each other during an interview (impressively, ''it managed to chart in the UK'', peaking at #52). In fact, they once co-headlined the aptly named "Tour of Brotherly Love," with fellow sibling rival band...
* Music/TheBlackCrowes were lead by brothers Chris and Rich Robinson. Stories about of band rehearsals degenerating into physical brawls between the two, only to stop suddenly when they feel they've figured out the music. They did make a point of never letting their animosity spill over into their live act (unlike Oasis), as they felt it was disrespectful to the fans.
* Cruelty is common in the animal kingdom, but some species of sharks still stand out as radical (no surprise, really) when it comes to their reproduction process. They are live-bearing and usually have up to fifteen embryos, but only one or two of them actually emerge. Where do the rest of them go? Take a guess.
* Ed and David Milliband, respectively Energy and Climate Change Secretary and Foreign Secretary under UsefulNotes/GordonBrown, were the two front runners for the Labour Party leadership (and thus the Leadership of the Opposition) after the 2010 elections that put UsefulNotes/DavidCameron's Tory-Lib Dem coalition in power. Ed ran as a more lefty Brownite, David as a centrist Blairite; Ed won.
** Although we say they were the front-runners, we should say that David was the odds-on favourite, and Ed was seen as something of a [[DarkHorseVictory dark-horse candidate]].
** After the lacklustre 2015 general election and Ed's resignation as party leader, David was commendably restrained in his comments about his brother's leadership.
* Ray and Dave Davies of Music/TheKinks. Their onstage brawls were so bad that it led to a five-year ban from American venues.
* Basketball players Pau and Marc Gasol have a rivalry of necessity; they play for different teams (the San Antonio Spurs and the Memphis Grizzlies, respectively). That said, when they go up against each other they don't hold back. Pau, the older brother, is probably "winning", being on much more successful teams (he had spent most of his pre-Spurs career with the Los Angeles Lakers) and dwarfing Marc in nearly every positive stat category. On the other hand, they play together on the Spanish national team, and they lead it. "Gasol to Gasol...and it's in" is pretty common whenever Spain is playing.
* English princes (and Later Kings) Richard, Geoffrey and John, as depicted in both ''Theatre/TheLionInWinter'' and most versions of ''RobinHood''
* Candace Bergen has stated that as a young child she felt an intense "sibling rivalry" with an inanimate object: her ventriloquist father Edgar's famous dummy Charley [=McCarthy=].
* Seventies/Eighties singing family The NolanSisters appear to have split into two separate rival factions who are mutually not at home to each other. Let us call these the Provisional and Official wings of the Nolan family, as it does appear to have got this bloody and this Irish. Relations were soured when the oldest sister made abuse allegations against her (now deceased) father that were hotly denied by the horrified rest of her family. It was pointed out that the oldest sister is bankrupt and in desperate need of the money only a shock/horror autobiography could bring in. Offered a lucrative reunion tour and recording deal, the rest of the sisterhood retaliated by cutting the oldest out of the contact. On top of this, a sixth sister who left the band just as they became famous was miffed to discover the sisters were reforming, and she had not been invited. Lawyers have been brandished and opening shots fired. Offical family history has been airbrushed to make it look as if there were only ever four Nolan Sisters (Maureen, Linda, Bernadette and Colleen). Anne and Denise Nolan are said to be just a wee fecken' bit offended that they no longer exist and are seeking to prove their corporeal integrity, to the satisfaction of Church, State and Courts. (If nothing else, they are credited on the first few LP's and an awful lot of TV work the girls did....) Watch this space.
* In a poisonous business rivalry, German brothers Rudolf "Rudi" and Adolf "Adi" Dassler, formerly partners in the family's shoe business, split in 1947. Each founded a new sporting goods company—Rudi founded Ruda, which soon became Puma, and Adi founded Adidas. Both companies were (and still are) based in the small town of Herzogenaurach, which soon picked up the nickname "the town of bent necks" because townspeople constantly looked down at strangers' feet to see what shoes they wore. The town's two [[UsefulNotes/AssociationFootball football]] clubs were split, with one sponsored by Adidas and the other by Puma. Workmen who were called to Rudi's home began wearing Adidas shoes; when Rudi saw their footwear, he invariably told the workers to go into the basement and pick out a free pair of Pumas. The corporate rivalry cooled down after both brothers died in the 1970s; now neither company is controlled by either branch of the Dassler family. (And it eventually led to a DarkHorseVictory as Nike surpassed both.)
* Speaking of football, there have been a couple of examples of this in recent years:
** In both 2010 and 2014, half-brothers[[note]]in this case, same father, different mothers[[/note]] Jérôme and Kevin-Prince Boateng played on different national teams in UsefulNotes/TheWorldCup, respectively Germany and Ghana. In fact, both countries were drawn into the same group on both occasions. It should be noted, however, that by most reports, the two aren't all that close.
** Then, in [[UsefulNotes/EuropeanChampionship UEFA Euro]] 2016, we had ''full brothers'' Taulant and Granit Xhaka[[note]]pronounced JAH-kah[[/note]] respectively playing for Albania and Switzerland. As in the case of the Boatengs, the Xhaka brothers ended up playing against each other in the group stage. Unlike the Boatengs, however, the two are reported to be very close, and often banter with each other on their public Facebook pages.
* Animals and birds that have litters, especially predators. A kill will be fought over by the siblings, and weaker ones do not always survive. Some bird species will even push weaker siblings from the nest. Or fake siblings, in the case of cuckoos and cowbirds.