The 1999–2000 Ohio State Buckeyes men's basketball team represented Ohio State University during the 1999–2000 NCAA Division I men's basketball season.

Led by third-year head coach Jim O'Brien, the Buckeyes finished 23–7 (13–3 Big Ten) and reached the second round of the NCAA tournament.

[2] However, the NCAA adjusted the team's record to 11-3 due to sanctions resulting from the Jim O’Brien scandal.

[3][4] [5] [7] [8]