LETF
| Acronym | Definition |
|---|---|
| LETF | Labor Enforcement Task Force (California Department of Industrial Relations) |
| LETF | Law Enforcement Trust Fund (various states) |
| LETF | Launch Equipment Test Facility (NASA) |
| LETF | Liquid Effluent Treatment Facility |
| LETF | Laser Engineering Test Facility |
| LETF | Laser Effects Test Facility |