| UDP | A Universal Delivery Protocol 
| Others |
| UDP | Ugly Duckling Presse
| Others |
| UDP | Ulster Democratic Party
| Others |
| UDP | Umpire Development Program
| Others |
| UDP | Unacknowledged Data Protocol
| Others |
| UDP | Undefined Destination Packet
| Others |
| UDP | UnderDrive Pulley
| Others |
| UDP | Undergraduate Degree Program
| Others |
| UDP | Undiagnosed Diseases Program
| Others |
| UDP | Undying Data Packetgrams
| Others |
| UDP | União Democrática Popular
| Others |
| UDP | Unified Development Platform
| Others |
| UDP | Uniform Datagram Protocol
| Others |
| UDP | Unit Deployment Package
| Others |
| UDP | Unit Deployment Program
| Others |
| UDP | Unitary Development Plan
| Others |
| UDP | United Dairy Power
| Others |
| UDP | United Democratic Party
| Others |
| UDP | Unity Distribution Portal
| Others |
| UDP | Universal Dashboarding Platform
| Others |
| UDP | Universal Data Packets
| Others |
| UDP | Universal Data Platform
| Others |
| UDP | Universal Data Port
| Others |
| UDP | Universal Digital Player
| Others |
| UDP | Universal Driver Package
| Others |
| UDP | Unix Data Protocol
| Others |
| UDP | Unreliable Damn Protocol
| Others |
| UDP | Unreliable Data Protocol
| Others |
| UDP | Unreliable Datagram Packet
| Others |
| UDP | Unreliable Datagram Protocol
| Others |
| UDP | Up Down Pair
| Others |
| UDP | Upset Deadly Pandas
| Others |
| UDP | Uridine Di- Phosphate
| Others |
| UDP | Uridine diphosphate
| Others |
| UDP | Uridine Diphosphate A Phosphorilated
| Others |
| UDP | Uridine DiPhosphate The process
| Others |
| UDP | Usenet Death Penalty
| Others |
| UDP | User Data Package
| Others |
| UDP | User Data Protocol
| Others |
| UDP | User Datagram Packets
| Others |
| UDP | User Datagram Protoco
| Others |
| UDP | User Datagram Protocol
| Others |
| UDP | User Defined Primitive
| Others |
| UDP | User Defined Procedure
| Others |
| UDP | Usurious Department Of Protocol
| Others |
| UDP | Utility Discount Programs
| Others |