| Abbreviation | Definition |
|---|---|
| NWDA | Nebraska Well Drillers Association |
| NWDA | North Woods Dressage Association |
| NWDC | NorthWest Disarmament Coalition |
| NWEA | Northwest Evaluation Association |
| NWF | National Wildlife Federation |
| NWF | New World Foundation |
| NWF | Norcross Wildlife Foundation |
| NWHN | National Women's Health Network |
| NWI | National Wilderness Institute |
| NWL | NorthWest Lichenologists |
| NWLC | National Women's Law Center |
| NWM | New Ways Ministry |
| NWMT | NorthWest Medical Teams |
| NWMTI | NorthWest Medical Teams International |
| NWMTII | NorthWest Medical Teams International, Inc. |
| NWOALZ | Alzheimer's Association, Northwest Ohio Chapter |
| NWOALZ | Northwest Ohio Chapter of Alzheimer's Association |
| NWQ | Native Women of Québec |
| NWR | National Wildlife Refuge |
| NWRA | National Water Resources Association |