| Acronym | Definition |
|---|
| NWSG | Native Warm-Season Grasses |
| NWSG | Northwest Screenwriters Guild |
| NWSG | Northwest Senior Games |
| NWSG | National Weather Sensor Grid |
| NWSG | Naperville Women's Social Group (Naperville, IL) |
| NWSG | North West Shelf Gas Pty Ltd. (Australia) |
| NWSG | North West Security Guards Ltd |
| NWSG | Nuclear Warfare Status Group |
| NWSG | Northwest Solar Group |
| NWSG | Northern Way Steering Group (UK) |
| NWSG | Navy Women's Study Group |
| NWSG | Nonwovens Systems Group |
| NWSG | Nuclear Weapons Security Group |
| NWSG | National Working Stakeholder Group (NEITI) |
| NWSG | New Worker Supporters Group |
| NWSG | North West Switchgear |
| NWSG | North-West South Georgia |
| NWSG | Netzwerk Stadtgewässer |
| NWSG | National Water Supply GIS |
| NWSG | Nationwide Search Group, LLC |
| NWSG | National Weather Service Grid |
| NWSG | Nanjing Water Services Group (China) |
| NWSG | National Wood Society of Gabon |