| Acronym | Definition |
|---|
| UPS | United Parcel Service |
| UPS | Uninterruptible Power Supply |
| UPS | Universal Power Supply |
| UPS | Uninterruptible Power System |
| UPS | University of Puget Sound |
| UPS | Université Paul Sabatier (Tolouse, France) |
| UPS | Universal Press Syndicate |
| UPS | Uninterrupted Power Source |
| UPS | Ubiquitin-Proteasome System |
| UPS | Universal Polar Stereographic |
| UPS | Ultraviolet Photoelectron Spectroscopy |
| UPS | Updates Per Second (stock market data) |
| UPS | Unfolded Protein Response |
| UPS | Uniform Particle Size |
| UPS | Units Per Second |
| UPS | Underground Press Syndicate |
| UPS | Under Provisions of Section |
| UPS | Union des Professeurs de Speciales (French: Union of Special Teachers; France) |
| UPS | Underwater Photographic Society |
| UPS | United Protection Services (various locations) |
| UPS | Unix Print Services |
| UPS | Unity Primary School (Singapore) |
| UPS | Unclaimed Property System (Wagers software used by many states to process unclaimed property) |
| UPS | User Planning System |
| UPS | Uniform Procurement System |
| UPS | United Publicity Services plc (UK) |
| UPS | Universal Public School (India) |
| UPS | Uninterrupted Power Subsystem |
| UPS | Unit Personnel Section |
| UPS | Urban Planning Service (Australia) |
| UPS | Universal Polling System |
| UPS | Universal Plotting Sheet |
| UPS | Universal Politician's Suit |
| UPS | Ultraviolet Particle Sizer |
| UPS | Undergraduate Professional Study (program) |
| UPS | Unusual Pile of Sticks (geocaching) |
| UPS | Uniform Publications System |
| UPS | Unpredictable Processing System |
| UPS | Ultimate Protection Squad (FIRST Robotics Competition Team 1675) |
| UPS | Ultraviolet Photoemisson Spectroscopy |
| UPS | Union pour Saint-Dié (French political association) |
| UPS | Universite Paris-Sud (French: South Paris University; Paris, France) |
| UPS | Unique Points of Sale |