| Acronym | Definition |
|---|
| UNA | University of North Alabama |
| UNA | Universidad Nacional Autónoma (Spanish: National Autonomous University; Costa Rica) |
| UNA | United Nations Association |
| UNA | Universidad Nacional Agraria (Spanish) |
| UNA | Unique Natural Area (Tompkins County, NY) |
| UNA | Ukrainian National Association |
| UNA | Unix Network Administration |
| UNA | United Nurses of Alberta (Canada; union) |
| UNA | University of the Netherlands Antilles (Netherlands) |
| UNA | Utah Nurses Association |
| UNA | Use No Acronyms |
| UNA | Universitatea Nationala de Aparare (Romania) |
| UNA | User Needs Analysis |
| UNA | Universal Network Architecture |
| UNA | Use No Abbreviations |
| UNA | Universal Navigational Assistant |
| UNA | User Network Aspects |