| UOC | Ukrainian Opel Club 
| Others |
| UOC | Ukrainian Orthodox Church
| Others |
| UOC | Ultima Online Cash
| Others |
| UOC | Ultimate One Chip
| Others |
| UOC | Ultimate Overclocking Championship
| Others |
| UOC | Ultrafast Optical Clock
| Others |
| UOC | Undergraduate Organizations Committee
| Others |
| UOC | Understanding Of Coding
| Others |
| UOC | Uniform Offering Circular
| Others |
| UOC | Unit Of Competency
| Others |
| UOC | Unit Operation Center
| Others |
| UOC | Unit Operations Center
| Others |
| UOC | United Orthopedic Corporation
| Others |
| UOC | Universal Orientation Cable
| Others |
| UOC | Universitat Oberta de Catalunya
| Others |
| UOC | Universitatea Ovidius Constanta
| Others |
| UOC | University of Calgary
| Others |
| UOC | University Of Calicut
| Others |
| UOC | University of Catalonia
| Others |
| UOC | University of Cologne
| Others |
| UOC | University of Colombo
| Others |
| UOC | University of Crete
| Others |
| UOC | University of Cumbria
| Others |
| UOC | University of Curacao
| Others |
| UOC | University Orthopaedic Clinic
| Others |
| UOC | University Orthopedics Center
| Others |
| UOC | Usable On Code
| Others |
| UOC | Useable On Code
| Others |
| UOC | User Organisation Committee
| Others |
| UOC | Utility Operations Center
| Others |