The 1921 Montana State Bobcats football team was an American football team that represented Montana State College (later renamed Montana State University) in the Rocky Mountain Conference (RMC) during the 1921 college football season. In its second season under head coach D. V. Graves, the team compiled a 2–4 record (0–1 against RMC opponents) and was outscored by a total of 74 to 63.[1]