| Year: | 1940 |
| Team: | Mississippi State Maroons |
| Sport: | football |
| Conference: | Southeastern Conference |
| Short Conf: | SEC |
| Aprank: | 9 |
| Record: | 10–0–1 |
| Conf Record: | 4–0–1 |
| Head Coach: | Allyn McKeen |
| Hc Year: | 2nd |
| Stadium: | Scott Field |
| Champion: | Orange Bowl champion |
| Bowl: | Orange Bowl |
The 1940 Mississippi State Maroons football team was an American football team that represented Mississippi State College (now known as Mississippi State University) as a member of the Southeastern Conference (SEC) during the 1940 college football season. In their second year under head coach Allyn McKeen, the Maroons complied an overall record of 10–0–1, with a conference record of 4–0–1, and finished second in the SEC.[1] This was Mississippi State's only undefeated season.
End Buddy Elrod was named SEC "Player of the Year" by the Nashville Banner and was selected to several All-America teams.