| Acronym | Definition |
|---|
| PTSG➣Plasma Theory and Simulation Group (University of California, Berkeley) |
| PTSG➣Gesetz Zur Sicherstellung des Postwesens Und der Telekommunikation (German) |
| PTSG➣Partnership Technical Support Group (various organizations) |
| PTSG➣Parent Teacher Support Group (various locations) |
| PTSG➣Pittsburgh Transsexual Support Group (Pennsylvania) |
| PTSG➣Pancreatic Tumor Study Group (University of Texas MD Anderson Cancer Center; Houston, TX) |