Street Fighter IV (ストリートファイター IV, Sutorīto Faitā Fō) is a 2.5D fighting game published by Capcom, who also co-developed the game with Dimps. It was the first original main entry in the series since Street Fighter III in 1997, a hiatus of eleven years.

The coin-operated arcade game version was released in Japan on July 18, 2008, with North American arcades importing the machines by August. The console versions for the PlayStation 3 and Xbox 360 were released in Japan on February 12, 2009, and were sold in North American stores as early as February 16, with a February 18 intended release date.