| Abbreviation | Definition |
|---|---|
| LTC | Long Term Contract |
| LTCMDR | Lieutenant Commander |
| LtCol | Lieutenant Colonel |
| LTCP | Lieutenant Colonel Promotable |
| LTCS | Location Tracking Control System |
| LTD | Laser Target Designator |
| LTD | Line Throwing Device |
| LTD/R | Laser Target Designator/ranger |
| LTF | Logistics Task Force |
| LTG | Leadership Training Graduate |
| LTG | Lieutenant General |
| LTG | Local Timing Generator |
| LTH | Light Towed Howitzer |
| LTI | Left Thumb Impression |
| LTJG | Lieutenant, Junior Grade |
| LTK | License To Kill |
| LTL | Laser-To-Target Line |
| LTL | Less Than Lethal |
| LTM | Laser Tracker Module |
| LTMT | Long Term Military Transformation |