| Year: | 2011 |
| Team: | Lamar Cardinals |
| Conference: | Southland Conference |
| Short Conf: | Southland |
| Record: | 4–7 |
| Conf Record: | 2–5 |
| Head Coach: | Ray Woodard |
| Hc Year: | 2nd |
| Stadium: | Provost Umphrey Stadium (capacity: 16,000) |
The 2011 Lamar Cardinals football team represented Lamar University in the 2011 NCAA Division I FCS football season. The Cardinals were led by second-year head coach Ray Woodard and played their home games at Provost Umphrey Stadium. They are a member of the Southland Conference. This was the first season Lamar played as a Southland Conference member in football since 1986. They finished the season 4–7, 2–5 in Southland play to finish in sixth place.