| Year: | 1940 |
| Team: | Duke Blue Devils |
| Sport: | football |
| Conference: | Southern Conference |
| Short Conf: | SoCon |
| Aprank: | 18 |
| Record: | 7–2 |
| Conf Record: | 4–1 |
| Head Coach: | Wallace Wade |
| Hc Year: | 10th |
| Off Scheme: | Single-wing |
| Mvp: | Jasper Davis |
| Captain: | Alex Winterson |
| Stadium: | Duke Stadium |
The 1940 Duke Blue Devils football team was an American football team that represented Duke University as a member of the Southern Conference during the 1940 college football season. In its tenth season under head coach Wallace Wade, the team compiled a 7–2 record (4–1 against conference opponents), finished second in the conference, was ranked No. 18 in the final AP Poll, and outscored opponents by a total of 203 to 52. Alex Winterson was the team captain.[1] [2] The team played its home games at Duke Stadium in Durham, North Carolina.