The 1922 Idaho Vandals football team represented the University of Idaho as a member of the Northwest Conference and the Pacific Coast Conference (PCC) during the 1922 college football season. Led by first-year head coach Robert L. Mathews, the Vandals compiled an overall record of 3–5. Idaho had a record of 2–3 in Northwest Conference play, placing fourth, and 0–4 against PCC opponents, finishing last out of eight teams. The team played only one home game, on campus, at MacLean Field in Moscow, Idaho.