| Year: | 1970 |
| Team: | Lamar Tech Cardinals |
| Sport: | football |
| Conference: | Southland Conference |
| Short Conf: | Southland |
| Record: | 3–7 |
| Conf Record: | 1–3 |
| Head Coach: | Vernon Glass |
| Hc Year: | 8th |
| Stadium: | Cardinal Stadium |
| Next: | 1971 |
The 1970 Lamar Tech Cardinals football team represented Lamar State College of Technology—now known as Lamar University—as a member of the Southland Conference during the 1970 NCAA College Division football season. Led by eighth-year head coach Vernon Glass, the Cardinals compiled an overall record of 3–7 with a mark of 1–3 in conference play, placing fourth in the Southland. Lamar Tech played home games at Cardinal Stadium in Beaumont, Texas.