| Year: | 1986 |
| Team: | Humboldt State Lumberjacks |
| Sport: | football |
| Conference: | Northern California Athletic Conference |
| Short Conf: | NCAC |
| Record: | 2–9 |
| Conf Record: | 0–5 |
| Head Coach: | Mike Dolby |
| Hc Year: | 1st |
| Off Coach: | Bart Andrus |
| Oc Year: | 1st |
| Stadium: | Redwood Bowl |
The 1986 Humboldt State Lumberjacks football team represented Humboldt State University—now known as California State Polytechnic University, Humboldt—as a member of the Northern California Athletic Conference (NCAC) during the 1986 NCAA Division II football season. Led by first-year head coach Mike Dolby, the Lumberjacks compiled an overall record of 2–9 with a mark of 0–5 in conference play, placing last out of six teams in the NCAC.[1] The team was outscored by its opponents 350 to 175 for the season. Humboldt State played home games at the Redwood Bowl in Arcata, California.
Humboldt State opened the season at Boise State in the first game ever played on a blue field.