1931 Michigan State Spartans football team

The 1931 Michigan State Spartans football team represented Michigan State College in the 1931 college football season. In their third season under head coach Jim Crowley, the Spartans compiled a 5–3–1 record and played to a scoreless tie in their annual rivalry game with Michigan. In inter-sectional play, the team defeated Georgetown (6-0) and lost to Army (20-7) and Syracuse (15-7). In one of the most one-sided games in Michigan State history, the Spartans also defeated Ripon College on November 7, 1931, by a 100 to 0 score.

Quarterback Bob Monnett was selected by the Central Press Association as a first-team player on the 1931 College Football All-America Team.