The 1929 Idaho Vandals football team represented the University of Idaho in the 1929 college football season. The Vandals were led by first-year head coach Leo Calland and were in their eighth season in the Pacific Coast Conference. Home games were played on campus in Moscow at MacLean Field. Idaho compiled a 4–5 overall record and went 1–4 in conference games. In the Battle of the Palouse with neighbor Washington State, the Cougars won for the second straight year, their first at home in Pullman in eight years.