A pair of rival schools of martial arts, run by a pair of masters who have probably been at it for years before the series even started. If ''dojo'' is applied to non-Japanese martial arts, its use is an example of the FarEast trope.

Most often, but not always, the two masters were students of the same martial arts style before branching off to different styles: the protagonist usually (but not always) learning under the benevolent master who teaches wisdom and self defense, while the rival school is run by an EvilMentor and is characteristically ruthless, aggressive and brutal.

A subset of this trope comes in the form of "dojo busting," in which members of a rival school (or even an [[ArrogantKungFuGuy unaffiliated challenger looking to show his prowess]]) will sit in on lessons and challenge the sensei or top student to a match, usually as an excuse to completely ransack the dojo, maim everyone inside, and steal a memento of his victory (typically the dojo's marquee.)

Very often comes up in FightingSeries. This situation often involves or ends with the main students from both schools eventually becoming friends or at least allies, usually after [[DefeatMeansFriendship one of them defeats the other,]] effectively ending the feud, or turning it into a [[FriendlyEnemy friendly rivalry]] (if it wasn't already) instead.

See also FeudingFamilies.

* Being the quintessential FightingSeries (at least in Manga), DragonBall of course has this, with Goku learning the Turtle Style from Master Roshi, while his rival Crane Hermit's teaches his students styles of brutal assassination. Goku fights two members of the Crane School, Crane's brother Tao and his star pupil, Tien. Tien defeats Goku the first time, but, in a rare occurrence for this trope, his HeelFaceTurn begins even before Goku eventually bests him.
* Turned drastically UpToEleven in ''StarWars'' where the Jedi and the Sith teach opposing philosophical approaches to similar martial and magical skill, and have been at each others' throats for twenty-five thousand years.
* ''The Gone-Away World'' by Nick Harkaway has a rivalry between a ninja school and a mime school. (Yes, the mimes are martial artists. Don't ask.)
** Supported by Miyagi Dojo vs Kobra Kai in TheKarateKid 1 and 3.
* Inverted by ''Film/BestOfTheBest'', where the two schools are both honorable and have similar philosophies.
** ''[[http://en.wikipedia.org/wiki/Ninja_Academy Ninja Academy]]''. Oddly enough, one of the students at the {{Hero}} ninja academy is a mime.
* RealLife: Count Dante's [[http://en.wikipedia.org/wiki/Count_Dante#The_Dojo_Wars Dojo Wars]]
* ''JadeEmpire'' naturally has a variant on this (It's technically the same school, but the two teachers use different styles)
* BambooBlade has rival Kendo schools.
* ''{{Pokemon}}'' did an episode about a pair of rival Gyms.
** The games also featured this with Saffron City's two Gyms, one for the Fighting-type and one for the Psychic-type. Only one got to be the official Gym of the city, and the Psychic-type Gym won due to ElementalRockPaperScissors.
* In ''Series/NinpuuSentaiHurricaneger'' and ''Series/PowerRangersNinjaStorm'', three Rangers are from the Hayate/Wind Ninja Academy and two are from the Ikazuchi/Thunder Academy. They clashed at first with the Thunder ninjas acting as PsychoRangers to the Wind trio, but eventually pulled together to fight the BigBad.
** Almost the entirety of ''Series/JukenSentaiGekiranger'' is about the battles between the heroic [=GekiJuken=] Beast Arts school and the evil [=RinJuken=] Akugata school.
* Bobby Wasabi's (whose local sensei is an AdultChild BigBrotherMentor) and the [[ThugDojo Black Dragons]] (a Cobra Kai {{Expy}}) in ''KickinIt''.
* Jackie Chan's first starring role, Snake in the Eagle's Shadow, is about two rival schools, Snake Hand and Eagle Claw. Eagle Claw has exterminated almost every student from Snake Hand. Jackie becomes the last student of the Snake Hand, and incidentally is able to fight the master of Eagle Claw without being killed, so he learns about his style and [[YinYangBomb combines both of them]] into the style that names the film.
* Wrestling/NewJapanProWrestling, which boasted that professional wrestling was the strongest martial art in the world, was notorious for shutting the doors to its dojo when someone came in to challenge any of the professional wrestlers and then giving out {{No Holds Barred Beatdown}}s.
* Coastal Championship Wrestling saw a rivalry between CCW's Bodyslam University and Main Event Training Center after Pablo Marquez left Bodyslam and founded Main Event in protest to Bodyslam's head trainer, Cash Money Alex G, abuse of female students. As it is also in Ft. Lauderdale Florida, The Spot can sometimes act as a third wheel. For those of you worried, this rivalry was just an angle to give CCW Wrestlers something to fight over, Alex G doesn't actually try to hurt students, female or otherwise.