A fight song is primarily a US sports term, referring to a song associated with a team. In both professional and amateur sports, fight songs are a popular way for fans to cheer for their team. Although the term "fight song" is primarily used in America, the use of fight songs is commonplace around the world, but they may be referred to as team anthems, himnos equipos, or team songs in other countries, such as Australia, Mexico and New Zealand. Fight songs differ from stadium anthems, used for similar purposes, in that they are usually written specifically for the purposes of the team, whereas stadium anthems are not.

The term 'Fight Song' may also refer to a piece of music meant to excite or "pump up" a crowd for whatever reason, such as at a rave or concert.

In the United States, fight songs are especially popular for American football, especially at the collegiate and high school level. Among the most notable are The Victors and Notre Dame Victory March. However, several NFL teams maintain traditional songs usually several decades old. Notable fight songs include When the Saints Go Marching In; Skol, Vikings; Bear Down, Chicago Bears; Go! You Packers! Go!; Fly, Eagles Fly; San Diego Super Chargers; Band [[Hail to the Redskins.

Hundreds of colleges have fight songs, some of which are almost a century old. Fight songs are laden with history; in singing a fight song, fans feel part of a large, time-honored tradition. The following list contains some of the most established and popular in America.

The Fight Song is the second single from Marilyn Manson's fourth studio album Holy Wood (In the Shadow of the Valley of Death). The music video for this song shows the band members performing the song at a high school football game between 2 teams: "Holy Wood" and "Death Valley". The game itself is a metaphor for the conflict amongst both (in the album's concept) the rejects living in the Valley of Death and the beautiful people living in Holy Wood (itself a pun on Hollywood) as well as, possibly, the conflict of upper and lower classes, as inspired by Friedrich Nietzsche (see Master-slave morality). A remix appears on the Resident Evil soundtrack. The song uses a quote by Joseph Stalin, as Manson sings "The death of one is a tragedy / The death of a million is just a statistic".

The video for this song is one of the bonus feature's on the Bowling for Columbine DVD.