| Acronym | Definition |
|---|
| UCR | Universidad de Costa Rica |
| UCR | University of California, Riverside |
| UCR | Uniform Crime Reporting |
| UCR | Uniform Crime Reports |
| UCR | Unión Civica Radical (Argentina Radical Party) |
| UCR | Radical Civic Union (Argentina) |
| UCR | Unified Carrier Registration (interstate vehicle travel) |
| UCR | Under Color Removal |
| UCR | Universal Card Reader |
| UCR | Unique Consignment Reference |
| UCR | Undercolor Removal (printing ink) |
| UCR | Unconditioned Response |
| UCR | University of California Regents |
| UCR | Urine Creatinine |
| UCR | Upper Chattahoochee Riverkeeper (environmental advocacy; Atlanta, GA) |
| UCR | University College of Rhodesia |
| UCR | United Company Rusal (Russia) |
| UCR | Usual, Customary and Reasonable Fees |
| UCR | Unión del Centro Democrático (Argentina) |
| UCR | Unfadable Connect Records |
| UCR | Unsatisfactory Condition Report |
| UCR | Uncovered Row |
| UCR | Unit Cost Report |
| UCR | Unique Client Registration (Oracle Net8 Assistant) |
| UCR | Union Cordobesa de Rugby (Spanish) |
| UCR | United Computer Resources |
| UCR | United Clan of Roblox (gaming clan) |
| UCR | Unit Cost Resourcing |
| UCR | University and College Relations (Maricopa County, AZ community college system) |
| UCR | User Change Request |
| UCR | Unit Carcinogenic Risk (probabilty per dose unit of producing cancer) |
| UCR | USIGS Communications Requirements |
| UCR | User Connecting Router |
| UCR | User Communication Requirement |
| UCR | Union for Children's Rights |
| UCR | Unit Control Room (various organizations) |