1931 North Dakota Agricultural Bison football team

The 1931 North Dakota Agricultural Bison football team was an American football team that represented North Dakota Agricultural College (now known as North Dakota State University) in the North Central Conference (NCC) during the 1931 college football season. In its third season under head coach Casey Finnegan, the team compiled a 5–5 record (2–2 against NCC opponents) and tied for second place out of five teams in the NCC. The team played its home games at Dacotah Field in Fargo, North Dakota.