| 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 |