| UPD | Ultimate Performance and Design 
| Others |
| UPD | Unanimous Public Disorder
| Others |
| UPD | Unclaimed Property Database
| Others |
| UPD | Under Potential Deposition
| Others |
| UPD | Underrun Protection Device
| Others |
| UPD | Underwater Propulsion Device
| Others |
| UPD | Unidad Popular por la Paz, Democracia, Desarrollo y Derechos Humanos
| Others |
| UPD | Unified Police Department
| Others |
| UPD | Unilateral Price Determination
| Others |
| UPD | Union for the Public Domain
| Others |
| UPD | UniParental Disomy
| Others |
| UPD | Unit for the Promotion of Democracy (Organization of American States)
| Others |
| UPD | United Pacific Distributors
| Others |
| UPD | United Programmer and Designers
| Others |
| UPD | Universal Pairwise Distinguishability
| Others |
| UPD | Universal Print Driver
| Others |
| UPD | Universal Printer Driver
| Others |
| UPD | Universal Provider Datasource
| Others |
| UPD | Universele Postdienst
| Others |
| UPD | University of the Philippines Diliman
| Others |
| UPD | University Pizza and Deli
| Others |
| UPD | University Police Department
| Others |
| UPD | Unknown Purpose Defense
| Others |
| UPD | Unrelated Prior Damage
| Others |
| UPD | UP Diliman
| Others |
| UPD | Update information
| Others |
| UPD | Updated Program Data
| Others |
| UPD | Upsilon Phi Delta
| Others |
| UPD | Urban Planning and Design
| Others |
| UPD | Urban Policy Development
| Others |
| UPD | Urbana Park District
| Others |
| UPD | User Performance Data
| Others |
| UPD | User Product Distribution
| Others |
| UPD | User Profile Disks
| Others |
| UPD | User Profile Distribution
| Others |
| UPD | User Program Division
| Others |
| UPD | Users Per Day
| Others |