| Abbreviation | Definition |
|---|---|
| UNE | Unbundled Network Element |
| UNEDA | United Network Equipment Dealer Association |
| UNE-P | Unbundled Network Element Platform |
| UNH-IOL | University of New Hampshire Inter- Operability Laboratory |
| UNI | Universal Node Interconection |
| UNI | User to Network Interface |
| UNIC | Universal Networking Intellectual Capital |
| UNICE | Universal Networking Intelligence Computing Entity |
| UNII | Unlicensed National Information Infrastructure |
| U-NII | Unlicensed National Information Infrastructure |
| UNIT | Unattended Network Installation Toolkit |
| UNITE | User Network Interface To Everything |
| UNL | Universal Networking Language |
| UNO | Universal Network Object |
| UNP | Unified Negotiation Protocol |
| UNP | UNIX Network Programming |
| UNTIL | Unload Now Test It Later |
| UOC | Ultrafast Optical Clock |
| UOC | Understanding Of Coding |
| UOI | UPS OnLine Intranet |