| Year: | 1981 |
| Team: | Louisiana Tech Bulldogs |
| Sport: | football |
| Conference: | Southland Conference |
| Short Conf: | Southland |
| Record: | 4–6–1 |
| Conf Record: | 2–2–1 |
| Head Coach: | Billy Brewer |
| Hc Year: | 2nd |
| Captain: | Lyn Bankston, Andre Young |
| Stadium: | Joe Aillet Stadium |
The 1981 Louisiana Tech Bulldogs football team was an American football team that represented Louisiana Tech University as a member of the Southland Conference during the 1981 NCAA Division I-A football season. In their second year under head coach Billy Brewer, the team compiled a 4–6–1 record.