| Year: | 2003 |
| Team: | SMU Mustangs |
| Sport: | football |
| Conference: | Western Athletic Conference |
| Short Conf: | WAC |
| Record: | 0–12 |
| Conf Record: | 0–8 |
| Head Coach: | Phil Bennett |
| Hc Year: | 2nd |
| Off Coach: | Larry Edmondson |
| Oc Year: | 2nd |
| Off Scheme: | Pro-style |
| Def Coach: | Jim Gush |
| Dc Year: | 2nd |
| Def Scheme: | 4–3 |
The 2003 SMU Mustangs football team represented Southern Methodist University (SMU) as a member the Western Athletic Conference (WAC) during the 2003 NCAA Division I-A football season. Led by second-year head coach Phil Bennett, the Mustangs compiled an overall record of 0–12 with a mark of 0–8 in conference play, placing last out of ten teams in the WAC.[1]
No SMU players were selected in the 2004 NFL draft.
The following finished their college career in 2003, were not drafted, but played in the NFL.
| Player | Position | First NFL team | |
| Running back | New York Giants |