| Abbreviation | Definition |
|---|---|
| LF | Low Fusing |
| LFA | Lead Federal Agency |
| LFA | Leave Fare Assistance |
| LFA | Low Frequency Active |
| LFAA | Land Force Atlantic Area |
| LFAA | Land Forces Atlantic Area |
| LFAA | Low Frequency Active Acoustics |
| LFAATC | Land Forces Area Atlantic Training Centre (Canadian Military) |
| LFAAV | Landing Force Amphibious Assault Vehicle |
| LFAI | Land Forces Ammunition Interchangeability |
| LFALA | Land Forces Advanced Logistic Area |
| LFAS | Low Frequency Active Sonar |
| LFAST | Language Familiarization and Area Studies Team (DLIFLC) |
| LFAST | Live Fire Accuracy Screening Test |
| LFAV | Light Fire Attack Vehicle |
| LFB | London Fire Brigade |
| LFB | London Fire Brigade's |
| LFC | Low Flying Cruise |
| LFCCIS | Land Forces Command and Control Information System ( Canada) |
| LFCX | Live Fire Coordination Exercise |