| 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) |