| Acronym | Definition |
|---|
| ULT | Ultimate (Loads) |
| ULT | Ultimo (Latin: last month) |
| ULT | Unlimited Tax |
| ULT | Universal Lighting Technologies (Nashville, TN) |
| ULT | University Learning and Teaching (various locations) |
| ULT | Ultra Tracker |
| ULT | Ultra-Low Temperature |
| ULT | Ultra Tracker (file format) |
| ULT | Unit Level Traceability (Intel) |
| ULT | Université Libre de Tunis (French: University of Tunis; Tunisia; est. 1973) |
| ULT | Unit Level Training (US Navy) |
| ULT | Upper Limit of Normal |
| ULT | Utility Litigation Team (USAF) |
| ULT | Underwater Location Transmitter |
| ULT | Ultra-Large Telescope |