| Abbreviation | Definition |
|---|---|
| GLFA | Great Lakes Forest Alliance |
| GLTA | Gay and Lesbian Tennis Alliance |
| GLWA | Gay Lesbian Web Alliance |
| GMTA | Global Medical Technology Alliance |
| GOA | Global Organic Alliance |
| GOA | Growth Opportunities and Alliances |
| GOCA | Georgia Ovarian Cancer Alliance |
| GOFA | Galaxy on Fire Alliances |
| GOFA | Galaxy on Fire – Alliances |
| GOFA | Galaxy on Fire Alliances |
| GPA | Global Powerlifting Alliance |
| GPA | Global Presence Alliance |
| GPAM | Green Purchasing Alliance Movement |
| GPAW | Great Pyrenees Alliance of the West |
| GPCA | Garfield Park Conservatory Alliance |
| GPCA | Greater Philadelphia Cultural Alliance |
| GPHA | Great Plains Health Alliance |
| GPTA | Great Plains Trail Alliance |
| GPWA | Global Professional Wrestling Alliance |
| GQA | Global Quality Alliance |