2004 SMU Mustangs football team

The 2004 SMU Mustangs football team represented Southern Methodist University (SMU) as a member the Western Athletic Conference (WAC) during the 2004 NCAA Division I-A football season. Led by third-year head coach Phil Bennett, the Mustangs compiled an overall record of 3–8 with a mark of 3–5 in conference play, tying for sixth place in the WAC.