| Abbreviation | Definition |
|---|---|
| GPSA | Gas Processors Suppliers Association |
| GPSA | Great Plains Sociological Association |
| GRAPE | Greater Robinson and People Enterprises |
| GSMA | The GSM Association |
| GSMF | Ghana Social Marketing Foundation |
| GSO | Georgia Society of Otolaryngology |
| GSOA | Geological Society Of America |
| GSOA | Georgia Soccer Officials Association |
| GSOA | Great Southwest Officials Association |
| GSOC | Geophysical Society of Oklahoma City |
| GSOD | Geological Society Of Dublin |
| GSOG | Geological Society Of Glasgow |
| GSOI | Geological Society Of India |
| GSOP | Geological Society Of Pennsylvania |
| GSOP | Georgia Society of Orthotists and Prosthetists |
| GSOP | Global Synthesis and Observations Panel |
| GSOT | Geological Society Of Tokyo |
| GSOTP | Global Sales Organization for Timeshare Professionals |
| GSPC | Gujarat State Petroleum Corporation |
| GSS | Global Support Services |