| Abbreviation | Definition |
|---|---|
| LI | Lithographer |
| LI1 | Lithographer First Class |
| LI2 | Lithographer Second Class |
| LI3 | Lithographer Third Class |
| LIA | Logistics Integration Agency |
| LIA | Lost In Action |
| LIATE | Lantirn Intermediate Automatic Test Equipment |
| LIB | Liberation |
| LIB | Light Infantry Battalion |
| LIBA | Light Improved Ballistic Armor |
| LIBYA | LAKENHEATH IS BOMBING YOUR Ass |
| LIC | Chief Lithographer |
| LIC | Low Intensity Conflict |
| LICM | Master Chief Lithographer |
| LICS | Senior Chief Lithographer |
| LID | Light Infantry Division |
| LIDAR | Laser Imaging Detection and Ranging |
| LIE | Legion Inner Empire |
| LIF | Light Interference Filter |
| LIF | Logistics Intelligence File |