| Abbreviation | Definition |
|---|---|
| GPAL | Global Parking Association Leaders |
| GPAT | Gold Prospectors Association of Tucson |
| GPCA | Georgia Pest Control Association |
| GPCA | Gulf Petrochemicals and Chemicals Association |
| GPCA | Gulf Petrochemicals Chemicals Association |
| GPDA | Grand Prix Drivers' Association |
| GPEAN | Global Planning Education Association Network |
| GPHA | Gateway Professional Horticulturist Association |
| GPHA | Georgia Pharmaceutical Association |
| GPHA | Georgia Pharmacists Association |
| GPHA | Georgia Pharmacy Association |
| GPHA | Georgia Polled Hereford Association |
| GPHA | Georgia Polled Hereford Association Inc |
| GPHA | Georgia Public Health Association |
| GPHA | Great Plains Hunter Association |
| GPHA | Greater Philadelphia Hotel Association |
| GPHA | Green Practice Healthcare Association |
| GPHA | Greenwood Point Homeowners Association |
| GPHA | Grenada Public Health Association |
| GPHA | Grosse Pines Homeowners Association |