| Abbreviation | Definition |
|---|---|
| NASRA | Hayastani Gitowt'yownneri Azgayin Akademia |
| NASRA | National Academy of Sciences of Armenia |
| NASS | North American Schelling Society |
| NASS | North American Strongman Society |
| NASS | North American Sundial Society |
| NASSM | North American Society for Sport |
| NASSM | North American Society For Sport Managment |
| NAST | National Academy of Science and Technology |
| NASTY | National Artichoke Society for Texas Youth |
| NASW | National Association of Science Writers |
| NAT | *!2!#0*2(1%"(2*#LA+H#0@(D" |
| NAT | ?????????????????????????????????? |
| NAT | Neurosurgical Association of Thailand |
| NATS | North America Telugu Society |
| NATS | North American Truffling Society |
| NAVBO | North American Vascular Biology Organization |
| NAVS | National Anti-Vivisection Society |
| NBAS | Nick Briggs Appreciation Society |
| NBFS | National Bird Feeding Society |
| NBMS | New Brunswick Medical Society |