Fox Sports 1 (FS1) is an American pay television channel owned by the Fox Sports Media Group, a unit of Fox Corporation.

FS1 airs an array of live sporting events, including Major League Baseball and the World Baseball Classic, college sports (most notably Big Ten, Pac-12 and Big 12 football, and Big East basketball), soccer matches (including Major League Soccer, Liga MX, Copa Libertadores, and FIFA World Cup), and a variety of motorsports events. FS1 also features daily sports news, analysis and discussion programming as well as sports-related reality and documentary programs.

FS1 replaced the motorsports-centric network Speed on August 17, 2013, while its companion channel Fox Sports 2 replaced Fuel TV. Both FS1 and FS2 carried over most of the sports programming from their predecessors, as well as content from Fox Soccer, which would then be replaced by the entertainment-based channel FXX on September 2, 2013.

The network is based primarily from the Fox Sports division's headquarters on the Fox Studio Lot in the Century City section of Los Angeles, though the network also has significant broadcast operations in New York City and Charlotte, North Carolina (the latter of which had served as Speed's home base).

As of September 2018, Fox Sports 1 was available to approximately 83.3 million pay television households (90.3% of households with cable) in the United States.[3] As of June 2023, the channel's reach had been reduced to 72.4 million homes.