| Abbreviation | Definition |
|---|---|
| LGW | Laser-Guided Weapon |
| LH | Landing Helicopter |
| LH | Length Height |
| LH | Light Hawk |
| LH | Light Horse |
| LH | Linear Hull |
| LH | Lower Half |
| LHA | Amphibious Assault Ship (General Purpose) |
| LHC | Left-Hand Circular (Polarization) |
| LHD | Amphibious Assault Ship (Multipurpose) |
| LHF | Local High Frequency |
| LHMBC | Lightweight Handheld Mortar Ballistic Computer |
| LHN | Long Haul Network |
| L-HOUR | Launch Hour (The specific hour on C-day at which a deployment operation commences) |
| L-Hour | Specific Hour On C-Day At Which A Deployment Operation Commences or is to Commence |
| LHT | Line-Haul Tractor |
| LHX | neXt generation Landihg Helicopter assault ship |
| LI | LAN (Local Area Network) Interface |
| LI | LAN Interface |
| LI | Limited Information |