| Mode: | Basketball |
| Year: | 1983–84 |
| Prev Year: | 1982–83 |
| Next Year: | 1984–85 |
| Team: | SMU Mustangs |
| Conference: | Southwest Conference |
| Short Conf: | SWC |
| Record: | 25–8 |
| Conf Record: | 12–4 |
| Hc Year: | 4th |
| Asst Coach1: | Doug Ash |
| Asst Coach3: | John Underwood |
| Tourney Result: | Second Round |
The 1983–84 SMU Mustangs men's basketball team represented Southern Methodist University as a member of the Southwest Conference during the 1983–84 men's college basketball season. The team was led by fourth-year head coach Dave Bliss and played their home games at Moody Coliseum.
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Regular season|-!colspan=9 style=| Southwest Conference tournament|-!colspan=9 style=| 1985 NCAA tournament[1] [2]