1947 Humboldt State Lumberjacks football team

The 1947 Humboldt State Lumberjacks football team represented Humboldt State College—now known as California State Polytechnic University, Humboldt—as a member of the Far Western Conference (FWC) during the 1947 college football season. Led by Joseph Forbes in his second and final season as head coach, the Lumberjacks compiled an overall record of 5–4 with a mark of 2–2 in conference play, placing third in the FWC, and outscored their opponents 159–131 for the season. The team played home games at the Redwood Bowl in Arcata, California.

In the final Litkenhous Ratings released in mid-December, Humboldt was ranked at No. 392 out of 500 college football teams.

Forbes finished his two-year tenure with an overall record of 10–7–1 (.580).