1979–80 SMU Mustangs men's basketball team

The 1979–80 SMU Mustangs men's basketball team represented Southern Methodist University during the 1979–80 men's college basketball season. This is Sonny Allen final year at SMU. The Mustangs finished with a record of 16-12, 7-9 in their conference.

Schedule
!colspan=9 style=| Southwest tournament