| Year: | 1928 |
| Team: | Idaho Vandals |
| Sport: | football |
| Conference: | Pacific Coast Conference |
| Short Conf: | PCC |
| Record: | 3–4–1 |
| Conf Record: | 2–3 |
| Head Coach: | Charles F. Erb |
| Hc Year: | 3rd |
| Stadium: | MacLean Field |
The 1928 Idaho Vandals football team represented the University of Idaho in the 1928 college football season. The Vandals were led by third-year head coach Charles F. Erb and were in their seventh season in the Pacific Coast Conference. Home games were played on campus in Moscow at MacLean Field. Idaho compiled a 3–4–1 overall record and went in conference games.
In their first year in the conference,[1] UCLA traveled to Moscow in late October and fell, It was UCLA's only loss in the seven-game series; the teams have not met since 1948. Idaho's only other win over a PCC team from the state of California came in 1947 at Stanford.[2]
The week after the win over UCLA was the Battle of the Palouse with neighbor Washington State,[3] and the visiting Cougars inflicted a homecoming shutout before 10,000;[4] the teams had tied the previous season in Pullman.[5] [6] Prior to the start of the game, the new Memorial Gymnasium was presented to the university;[4] the venue honors state residents who gave their lives in the service of their country in World War I.[7] [8] [9]
Amid speculation about his future at Idaho,[10] Erb resigned on December 22, four weeks after the season's completion.[11] He was succeeded by Leo Calland, a USC assistant coach and former player for the Trojans.[12] [13]