| Acronym | Definition |
|---|
| PGSA | Polish Genealogical Society of America |
| PGSA | Phosphatidylglycerophosphate Synthase |
| PGSA | Physics Graduate Student Association |
| PGSA | Post-Graduate Students Association |
| PGSA | Psychology Graduate Student Association |
| PGSA | Pennsylvania Governor's School for the Arts |
| PGSA | Philosophy Graduate Student Association |
| PGSA | Pitt-Greenville Soccer Association |
| PGSA | Pharmacy Graduate Student's Association |
| PGSA | Pasauline Galvos Skausmu Asociacija |
| PGSA | Pleasanton Girls Soccer Association |
| PGSA | Pearland Girls Softball Association |
| PGSA | Professional Gamers Association |
| PGSA | Prince George Squash Association |
| PGSA | Pasadena Girls Softball Association |
| PGSA | Pre-Professional & Graduate School Advising |
| PGSA | Paola Girls Softball Association |
| PGSA | Programa General de Simplificación Administrativa (Mexico) |
| PGSA | Petaluma Girls Softball Association |
| PGSA | Producción de Gas de Síntesis del Amoníaco |
| PGSA | Plano Girls Softball Association |
| PGSA | Princeton Girl's Softball Association |
| PGSA | Professional Gastroenterology & Surgery Associates |
| PGSA | PyroTechnics Guild of Southern Africa |
| PGSA | Poly Glycerol-co Sebacic Acid |
| PGSA | Peter Garnham Security Associates |
| PGSA | Port Glasgow Salvation Army |
| PGSA | Pointe Girls Soccer Association |
| PGSA | Preliminary Gas Sales Agreement |