| Abbreviation | Definition |
|---|---|
| LLD | Light Limited Duty |
| LLD | Low Level Discrimination |
| LLDR | Lightweight Laser Designator and Range finder |
| LLDR | Lightweight Laser Designator and Rangefinder |
| LLE | Less Lethal Equipment |
| LLI | Long Lead Item(S) |
| LLLGB | Low-Level Laser-Guided Bomb |
| LLLTV | Low Light Level Television |
| LLLTV | Low-Light Level Television |
| LLNL | Lawrence Livermore National Laboratory |
| LLO | Local Liaison Officer |
| LLP | Lower Level Protocol |
| LLSO | Low-Level Source Operation |
| LLT | Long Lead Time |
| LLTI | Long Lead Time Items |
| LLTR | Low-Level Transit Route |
| LLTV | Low Light Level Television |
| LLTV | Low-Light Level Television |
| LLV | Lunar Logistics Vehicle |
| LM | Legion of Merit |