| UNMFC | United Nation of Memes and Fried Chicken | |
| UNMG | Unimark Group, Incorporated (de-listed) | |
| UNMIBH | United Nations Mission in Bosnia and Herzegovina | |
| UNMID | United Nations Mission in Darfur | |
| UNMIH | United Nations Mission in Haiti | |
| UNMIK | United Nations Mission In Kosovo | |
| UNMIL | United Nations Mission In Liberia | |
| UNMILPOC | United Nations Military Police Course | |
| UNMIS | United Nations Mission in Sudan | |
| UNMIS | United Nations Mission in the Sudan | |
| UNMIS | United Nations Missions in Sudan | |
| UNMISET | United Nations Mission of Support in East Timor | |
| UNMISS | United Nations Mission In South Sudan | |
| UNMISS | U N Mission in South Sudan | |
| UNMISS | Unmissed | |
| UNMIT | United Nations Mission In Timor-Leste | |
| UNMOC | United Nations Military Observers Course | |
| UNMOGIP | United Nations Military Observer Group in India and Pakistan | |
| UNMOGIP | United Nations Military Observer Group In India Pakistan | |
| UNMOVCC | United Nations Movement Control Course | |
| UNMOVIC | United Nations Monitoring and Verification Commission | |
| UNMP | University of New Mexico Press | |
| UNMP | University of New Mexico Press | |
| UNMS | University Neighborhood Middle School | |
| UNMS | University of Newcastle Medical Society |
