| Year: | 1973 |
| Team: | SMU Mustangs |
| Sport: | football |
| Conference: | Southwest Conference |
| Short Conf: | SWC |
| Record: | 6–4–1 |
| Conf Record: | 3–3–1 |
| Head Coach: | Dave Smith |
| Hc Year: | 1st |
The 1973 SMU Mustangs football team represented Southern Methodist University (SMU) as a member of the Southwest Conference (SWC) during the 1973 NCAA Division I football season. Led by first-year head coach Dave Smith, the Mustangs compiled an overall record of 6–4–1 with a mark of 3–3–1 in conference play, tying for fourth place in the SWC.