| Acronym | Definition |
|---|
| NWSA | National Women's Studies Association |
| NWSA | Netware Semantic Agent |
| NWSA | Northwest School of the Arts (Charlotte, NC) |
| NWSA | New World School of the Arts (Miami, Florida, USA) |
| NWSA | National Woman Suffrage Association (1869-1890) |
| NWSA | National Welding Supply Association |
| NWSA | North Wales Sea Angling |
| NWSA | Northwest Scientific Association |
| NWSA | Nose Wheel Steering Actuator |
| NWSA | Naval Weather Service Association |
| NWSA | Nuclear Weapons Storage Area |
| NWSA | Nebraska Woman Suffrage Association |
| NWSA | Naval Weapons Support Activity |
| NWSA | Nuclear Weapons Supply Annex |
| NWSA | Northwest Stryker Alliance (paintball team) |