GPCA
| Acronym | Definition |
|---|---|
| GPCA | Green Party of California (est. 1985) |
| GPCA | Great Pyrenees Club of America |
| GPCA | Generalized Principal Component Analysis |
| GPCA | Greater Philadelphia Cultural Alliance (est. 1972; Pennsylvania) |
| GPCA | General Purpose California (est. 2015) |
| GPCA | Gulf Petrochemicals & Chemicals Association (Dubai, UAE) |
| GPCA | Greater Patapsco Community Association (Maryland) |
| GPCA | Georgia Plant Conservation Alliance |
| GPCA | Gastric Parietal Cell Antibody |