| Abbreviation | Definition |
|---|---|
| ULA | Ultra Light Arms |
| ULAB | USACE Learning Advisory Board |
| ULB | Underwater Light Beacon |
| ULC | Unit Level Code |
| ULC | Unit- Level Computer |
| ULCANS | Ultra-Lightweight CAmouflage Net System |
| ULCC | Ultra Large Crude Carrier |
| ULD | Ultra Low Drag Projectile |
| ULD | Unit Load Device |
| ULDP | Ultra Low Drag Projectile |
| ULEV | Ultra Low Emission Vehicle |
| ULF | Ultra Low Frequency |
| ULLC | Unit- Level Logistics Computer |
| ULLS | Unit Level Logistics System |
| ULMS | Unit Level Message Switch |
| ULN | Unit Line Number |
| ULP | Unit of Last Place |
| ULP | Upper Layer Protocol |
| ULR | Ultra Low Range |
| ULS | Update of Legacy Systems |