| UNL | Ultimate Net Loss
| Others |
| UNL | Ultimated Net Loss
| Others |
| UNL | Uniform Network Location
| Others |
| UNL | Universal Network Language
| Others |
| UNL | Universal Networking Language
| Others |
| UNL | Universal Node Locator
| Others |
| UNL | Universally Named Locations
| Others |
| UNL | Universidad Nacional del Litoral
| Others |
| UNL | Universidade Nova de Lisboa
| Others |
| UNL | University of Nebraska Lincoln
| Others |
| UNL | University of No Losing
| Others |
| UNL | University of North London
| Others |
| UNL | Unleaded
| Others |
| UNL | UNListed
| Others |
| UNL | Unnatural Link
| Others |
| UNL | Unthinkable Natural Law
| Others |