| UPCS | Unclaimed Property Compliance System 
| Others |
| UPCS | Uncommon Processor Capacity Services
| Others |
| UPCS | Uniform Physical Condition Standards
| Others |
| UPCS | Uniform Physical Conditions Standards
| Others |
| UPCS | United Presbyterian Church of Scotland
| Others |
| UPCS | University of the Philippines Cherubim and Seraphim
| Others |
| UPCS | University Park Campus School
| Others |
| UPCS | Unlicensed Personal Communications Services
| Others |
| UPCS | Unlimited Potential Community Services
| Others |
| UPCS | Upper Putah Creek Stewardship
| Others |
| UPCS | Urban Pathways Charter School
| Others |