| Abbreviation | Definition |
|---|---|
| LAW | Lost At War |
| LAWM | Lightweight All Weather Missile |
| LAWS | Lethal Autonomous Weapons Systems |
| LAWT | Light Antitank Weapon Technology |
| LB | Left Behind |
| LB | Life Boat |
| LB | Little Boy |
| LB | Long Barrel |
| LB | Pound |
| LB/TS | Large Blast/Thermal Simulator |
| LBA | Long- Bow Apache |
| LBA | Long-Bow Apache |
| LBA | Luftwaffe Bekleidungs Ampt |
| LBBB | Long Beach Basket Brigade |
| LBE | Load Bearing Equipment |
| LBFB | Lego Beach Fire Brigade |
| LBG | Left Bulkhead Ground |
| LBHD | Longitudinal Bulkhead |
| LBIR | Low Background Infrared |
| LBJ | Long Binh Jail |