GPWG
| 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) |