| UOP | U Owe Paul 
| Others |
| UOP | UCAR ( University Corporation For Atmospheric Research) Office of Programs
| Others |
| UOP | UCAR Office of Programs
| Others |
| UOP | Ultima Online Portal
| Others |
| UOP | Ultima Online Powergamers
| Others |
| UOP | Undecidable Optimization Problem
| Others |
| UOP | Undefined Object Properties
| Others |
| UOP | Underground Operation Plan
| Others |
| UOP | Underlying Operating Profit
| Others |
| UOP | Underneath Our Penises
| Others |
| UOP | Underserved Opportunities Program
| Others |
| UOP | Union Of Paladins
| Others |
| UOP | Unit of Packaging
| Others |
| UOP | Unit Of Practice
| Others |
| UOP | Unit Of Production
| Others |
| UOP | Unit of Purchase
| Others |
| UOP | United Oil Products
| Others |
| UOP | United Outstanding Physicians
| Others |
| UOP | Units Of Production
| Others |
| UOP | Universal Oil Products
| Others |
| UOP | University Of Pacifica
| Others |
| UOP | University of Patras
| Others |
| UOP | University Of Petraea
| Others |
| UOP | University Of Phoenix
| Others |
| UOP | University Of Pittsburgh
| Others |
| UOP | University Of Planet
| Others |
| UOP | University of Plymouth
| Others |
| UOP | University Of the Pacific
| Others |
| UOP | University of the People
| Others |
| UOP | Unofficial Oblivion Patch
| Others |
| UOP | Upper Ocean Processes
| Others |
| UOP | User Operation Prohibition
| Others |
| UOP | User Operation Prohibitions
| Others |
| UOP | User Option Profile
| Others |
| UOP | Utah Olympic Park
| Others |