| ULT | Unit Level Training (US Navy) | 单位级训练（美国海军） |
| ULT | Utility Litigation Team (USAF) | 公用事业诉讼团队（USAF） |
| ULT | User Level Thread | 用户级线程 |
| ULT | Ultimo (Latin: last month) | Ultimo（拉丁语：上月） |
| ULT | Ultra Light Trigger | 超轻触发器 |
| ULT | Uh Like That | 呃像这样 |
| ULT | Unlimited Tax | 无限税 |
| ULT | Ultimate (Loads) | 极限（载荷） |
| ULT | ULTimate | 最后的 |
| ULT | Ultra-Large Telescope | 超大型望远镜 |
| ULT | Ultra-Low Temperature | 超低温 |
| ULT | Ultra- Low Temperature | 超低温 |
| ULT | Ultra Tracker (file format) | Ultra Tracker（文件格式） |
| ULT | United Lodge of Theosophists | 神学家联合小屋 |
| ULT | Underwater Location Transmitter | 水下位置变送器 |
| ULT | UltraTracker Music file | UltraTracker音乐文件 |