UNSR
| Acronym | Definition |
|---|---|
| UNSR | United Nations Special Rapporteur |
| UNSR | United Nations Special Representative |
| UNSR | Urea Nitrogen Synthesis Rate |
| UNSR | Unclassified National Security Related |
| UNSR | Ultimate NASCAR (National Association for Stock Car Auto Racing) Simulation Racing (online racing series) |
| UNSR | United Nations Standard Rules on the Equalization of Opportunities for Persons with Disabilities (est. 1993) |