| Wide: | yes |
| Cypress Mug | |
| Team1: | Louisiana Ragin' Cajuns |
| Team1logo: | Louisiana Ragin' Cajuns wordmark.svg |
| Team2: | Southeastern Louisiana Lions |
| Team2logo: | SLU Lions.png |
| Sport: | Football |
| Firstmeeting: | November 11, 1930 Southwestern Louisiana 13, Southeastern Louisiana 0 |
| Mostrecent: | September 3, 2022 Louisiana 24, Southeastern Louisiana 7 |
| Total: | 41 |
| Series: | Louisiana leads, 21–17–3 |
| Largestvictory: | Southeastern Louisiana, 42–0 (1956) |
| Longeststreak: | Southeastern Louisiana, 8 (1958–1965) |
| Longestunbeatenstreak: | Southeastern Louisiana, 15 (1951–1965) |
| Currentstreak: | Louisiana, 2 (2017–present) |
| Trophy: | Cypress Mug |
| Map Location: | Louisiana |
| Map Width: | 295 |
| Map Label1: | Louisiana |
| Map Mark1: | Red pog.svg |
| Map Label1 Position: | bottom |
| Coordinates1: | 30.213°N -92.019°W |
| Map Label2: | Southeastern Louisiana |
| Map Mark2: | Green pog.svg |
| Map Label2 Position: | bottom |
| Coordinates2: | 30.511°N -90.467°W |
The Cypress Mug is the name of the turned, polished mahogany mug that was awarded to the winner of the annual football game between the Louisiana Ragin' Cajuns (formerly the Southwestern Louisiana Bulldogs) and the Southeastern Louisiana Lions.[1] The two teams have met 40 times on the football field, with the Ragin' Cajuns currently holding a 21–17–3 edge in the all time series. The rivalry had been inactive since the Ragin' Cajuns' move from the NCAA's Division I-AA to Division I-A; however the two teams played each other in 2017 in Lafayette for the first time since 1981, resulting in a 51–48 Cajuns victory and played again for the Ragin' Cajuns' home opener in 2022.