| UDD | Bermuda Dunes Airport, Palm Springs, California 
| Others |
| UDD | Neutron, one up quark (u) and two down quarks (d)
| Others |
| UDD | Ultimate Debian Database
| Others |
| UDD | Ultra DigiDrive
| Others |
| UDD | Ultradispersive Detonational Diamond
| Others |
| UDD | Ultrafast DigiDrive
| Others |
| UDD | Underage Drinking and Driving
| Others |
| UDD | Underage Drunk Driving
| Others |
| UDD | Unified Data Descriptor
| Others |
| UDD | Unified Design Database
| Others |
| UDD | Uniform Distribution Distribution
| Others |
| UDD | Uniform Distribution of Decrements
| Others |
| UDD | Union Direkte Demokratie
| Others |
| UDD | Universal Data Dictionary
| Others |
| UDD | Universal Dig Dump
| Others |
| UDD | Universal Disk Drive
| Others |
| UDD | Universidad del Desarrollo
| Others |
| UDD | Unix to Unix Decoder
| Others |
| UDD | Unmanaged Device Discovery
| Others |
| UDD | Upper Distribution Duct
| Others |
| UDD | Urban Development Department
| Others |
| UDD | Urban Development Directorate
| Others |
| UDD | Urine Detection Device
| Others |
| UDD | User Data Document
| Others |
| UDD | User Defined Database
| Others |
| UDD | User Defined Device
| Others |
| UDD | User Diagnostics Disk
| Others |
| UDD | User- Defined Datatype
| Others |
| UDD | User-Data Disk
| Others |
| UDD | Utah Demolition Derby
| Others |
| UDD | Utility Distribution Diagram
| Others |