The 1999–2000 Ball State Cardinals men's basketball team represented Ball State University as a member of the Mid-American Conference during the 1999–2000 NCAA Division I men's basketball season.

Led by seventh-year head coach Ray McCallum, Ball State played their home games at Worthen Arena.

The Cardinals finished atop the MAC West Division regular season standings.

Ball State won the MAC tournament to receive an automatic bid to the NCAA tournament as No.

6 seed UCLA[2] and finished the season with a 22–9 record (11–7 MAC).