| Sport: | football |
| Year: | 1986 |
| Team: | Humboldt State Lumberjacks |
| 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 in the Northern California Athletic Conference during the 1986 NCAA Division II football season. Led by first-year head coach Mike Dolby, the Lumberjacks played home games on campus at the Redwood Bowl in Arcata, California, finished with a 2–9 record (0–5 in NCAC, last), and were outscored 175–350.
Humboldt State opened the season at Division I-AA Boise State in the first game ever played on a blue field.