| Acronym | Definition |
|---|
| USNA➣United States Naval Academy |
| USNA➣United States National Arboretum |
| USNA➣United States Notary Association |
| USNA➣United Service for New Americans (religious resettlement agency; est.1946) |
| USNA➣United States National Assessment (climate change) |
| USNA➣United States National Academies (Washington, DC) |