The 2020–21 Florida State Seminoles men's basketball team represented Florida State University during the 2020–21 NCAA Division I men's basketball season. The Seminoles were led by head coach Leonard Hamilton, in his 19th year, and played their home games at the Donald L. Tucker Center on the university's Tallahassee, Florida campus as members of the Atlantic Coast Conference. The Seminoles entered the year as the defending conference champions and were picked to finish the season third in the league with Scottie Barnes and M. J. Walker receiving pre-season recognition.