| Abbreviation | Definition |
|---|---|
| LCCS | Life Cycle Contractor Support |
| LCCW | Low Cost Composite Weapon |
| LCD | Liquid Crystal Display |
| LCDA | Level Converting Data Adapter |
| LCDA | Level-Converting Data Adapter |
| LCDB | Low Collateral Damage Bomb |
| LCDR | Lieutenant Commander |
| LCDR | Lieutenant Commander - Navy |
| LCE | Logistics Capability Estimator |
| LCE | Logistics Combat Element (MAGTF) |
| LCE | Logistics Combat Element (Marine) |
| LCED | Life Cycle Environmental Document |
| LCES | Line Conditioning Equipment Scanner |
| LCI | Landing Craft Infantry |
| LCIGS | Low Cost Inertial Guidance System |
| LCLA | Low Cost Low Altitude |
| LCLO | Low Cost Low Observable |
| LCM | Landing Craft, Mechanized |
| LCM | Letter-Class Mail |
| LCM | Life Cycle Model |