2005 Stephen F. Austin Lumberjacks football team

The 2005 Stephen F. Austin Lumberjacks football team represented Stephen F. Austin State University as a member of the Southland Conference during the 2005 NCAA Division I-AA football season. Led by first-year head coach Robert McFarland, the Lumberjacks compiled an overall record of 5–6 with a mark of 1–5 in conference play, placing in last place in the Southland. Stephen F. Austin played home games at Homer Bryce Stadium in Nacogdoches, Texas.