| Abbreviation | Definition |
|---|---|
| GPLRA | Global Psychology and Language Research Association |
| GPMA | Grand Prix Manufacturers Association |
| GPPA | Georgia Perennial Plant Association |
| GPPA | Georgia Professional Photographers Association |
| GPPA | Georgia Psychiatric Physicians Association |
| GPPA | Greater Pittsburgh Psychological Association |
| GPPA | Grenada Planned Parenthood Association |
| GPRA | Global Phenolic Resins Association |
| GPSA | Gas Processors Suppliers Association |
| GPSA | Georgia Political Science Association |
| GPTA | Gateway Plaza Tenants Association |
| GPTA | Georgia Pinhoti Trail Association |
| GPTA | Georgia Professional Tennis Association |
| GPTA | Global Professional Tutors Association |
| GPTA | Greater Pensacola Tennis Association |
| GPTA | Greater Portland Telugu Association |
| GPTA | Greater Pottstown Tennis Association |
| GPTA | Guatemala Produce Trade Association |
| GPWA | Gambling Portal Webmaster Association |
| GPWA | Gambling Portal Webmasters Association |