The 1981 Humboldt State Lumberjacks football team represented Humboldt State University—now known as California State Polytechnic University, Humboldt—as a member of the Far Western Conference (FWC) during the 1981 NCAA Division II football season.
Led by 16th-year head coach Bud Van Deren, the Lumberjacks compiled an overall record of 6–4 with a mark of 3–2 in conference play, tying for third place in the FWC.
[1] The team outscored its opponents 204 to 198 for the season.
Humboldt State played home games at the Redwood Bowl in Arcata, California.
[5][6]