| Acronym | Definition |
|---|
| NATT➣Nat Traversal |
| NATT➣Nat Transparency |
| NATT➣Naval Air Technical Training (US Navy) |
| NATT➣National Alliance for Thrombosis and Thrombophilia (Washington, DC) |
| NATT➣North American Table Tennis (Colorado Springs, CO) |
| NATT➣Natchez Trace National Scenic Trail (US National Park Service) |
| NATT➣Northern Australia Tropical Transect |
| NATT➣Northwest Alliance for Transportation Technologies |
| NATT➣Not At This Time |
| NATT➣Novice At Table Tennis |
| NATT➣North American Tillage Tool Company (Canada and France) |