The 1948 Idaho Vandals football team represented the University of Idaho in the 1948 college football season. The Vandals were led by second-year head coach Dixie Howell and were members of the Pacific Coast Conference. Home games were played on campus at Neale Stadium in Moscow, with one game in Boise at Public School Field. Idaho was 3–6 overall and won one of their six PCC games; future schedules had fewer conference matchups. A night game was played in late September in Salt Lake City, a loss to Utah.