| Acronym | Definition |
|---|
| GPWG➣Grass Phylogeny Working Group |
| GPWG➣Global Partnership Working Group (nonproliferation committee) |
| GPWG➣Gender and Peacebuilding Working Group (Canada) |
| GPWG➣Groupe Poliquin-Wakefield Group Inc. (Wakefield, Quebec, Canada) |
| GPWG➣Gas Pipeline Working Group (Australia) |