| Abbreviation | Definition |
|---|---|
| GRPA | Georgia Recreation Parks Association |
| GRPA | Guyana Responsible Parenthood Association |
| GRRA | Grand Rapids Rowing Association |
| GRRA | Great River Restaurant Association |
| GRRA | Greensboro Regional Realtors Association |
| GRTA | Greenwich Riding and Trails Association |
| GSA | German Studies association |
| GSAA | Garden State Appaloosa Association |
| GSAA | Gene Set Association Analysis |
| GSAA | General Studies Alumni Association |
| GSAA | Granite State Appaloosa Association |
| GSAI | German Studies Association of Ireland |
| GSAMS | Graduate Student Association in Mathematics and Statistics |
| GSAN | Graduate Student Association for Neuroscience |
| GSAS | Graduate Student Association Senate |
| GSBA | Garden State Bar Association |
| GSBA | Gonzaga Student Body Association |
| GSBA | Greater Seattle Business Association |
| GSBA | Greater Springfield Bowling Association |
| GSBA | Greater Stapleton Business Association |