Fatal Fury: King of Fighters, known as Garō Densetsu: Shukumei no Tatakai in Japan, is a 1991 head-to-head fighting game released by SNK for the Neo Geo arcade and home platforms. Fatal Fury was SNK's first fighting game for the Neo Geo system and served as the inaugural game in their Fatal Fury series, as well as the first game to depict the fictional "King of Fighters" tournament, which became the basis for the later The King of Fighters games.

A fighting game is a genre of video game that involves combat between two or more characters. Fighting game combat often features mechanics such as blocking, grappling, counter-attacking, and chaining attacks together into "combos". Characters generally engage in battle using hand-to-hand combat—often some form of martial arts. The fighting game genre is related to, but distinct from, the beat 'em up genre, which pits large numbers of computer-controlled enemies against one or more player characters.