The 2004 Stephen F. Austin Lumberjacks football team represented Stephen F. Austin State University as a member of the Southland Conference during the 2004 NCAA Division I-AA football season.
Led by sixth-year head coach Mike Santiago, the Lumberjacks compiled an overall record of 6–5 with a mark of 1–4 in conference play, tying in last place in the Southland.
Stephen F. Austin played home games at Homer Bryce Stadium in Nacogdoches, Texas.
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