| URM | Ultimate Racers Masters 
| Others |
| URM | Unaccompanied Refugee Minors
| Others |
| URM | Under Recruited Minority
| Others |
| URM | Under Represented Minority
| Others |
| URM | Undergraduate Research and Mentoring
| Others |
| URM | Uniform Redial Model
| Others |
| URM | Uniform Rim Marker
| Others |
| URM | Union Rescue Mission
| Others |
| URM | Unit Release Method
| Others |
| URM | United Resistance Movement
| Others |
| URM | United Retail Merchants
| Others |
| URM | Universal Records Management
| Others |
| URM | Universal Register Machine
| Others |
| URM | Universal Retention Mechanism
| Others |
| URM | Universal Retention Module
| Others |
| URM | Universal Risk Management
| Others |
| URM | Universal Router Module
| Others |
| URM | University Risk Management
| Others |
| URM | Unix Reference Manual
| Others |
| URM | Unlimited Register Machine
| Others |
| URM | Unreinforced Masonry
| Others |
| URM | Unser Racing Museum
| Others |
| URM | Unstoppable Recording Machine
| Others |
| URM | Urban Renewal Media
| Others |
| URM | Urban Research Monitor
| Others |
| URM | Uriman, Venezuela
| Others |
| URM | User Reference Memorandum
| Others |
| URM | User Reference Memos
| Others |
| URM | Utility Reference Model
| Others |
| URM | You Are Mad
| Others |