| Acronym | Definition |
|---|
| NRAT➣National Radar Analysis Team |
| NRAT➣Nuclear/Radiological Advisory Team (National Nuclear Security Administration; US Department of Energy) |
| NRAT➣Non-Resident Alien Taxation (California State University) |
| NRAT➣Network Research, Architecture and Technologies (Internet2 project) |
| NRAT➣Net Returns Above Total |
| NRAT➣National Risk Assessment Tool (UK) |