The 2005 Florida State Seminoles football team represented Florida State University during the 2005 NCAA Division I-A football season. The team was coached by Bobby Bowden and played their home games at Doak Campbell Stadium in Tallahassee, Florida. They were members of the Atlantic Coast Conference (ACC) and competed in the Atlantic Division.

The 2005 NCAA Division I-A football season was the highest level of college football competition in the United States organized by the National Collegiate Athletic Association (NCAA). The regular season began on September 1, 2005 and ended on December 3, 2005. The postseason concluded on January 4, 2006 with the Rose Bowl, which served as the season's BCS National Championship Game.