PCGS
| Acronym | Definition |
|---|---|
| PCGS | Professional Coin Grading Service |
| PCGS | Placer County Genealogical Society (California) |
| PCGS | Parallel Communicating Grammar System (communication) |
| PCGS | Primary Care Genetics Society (London, UK) |
| PCGS | Philadelphia Classical Guitar Society (Philadelphia, PA) |
| PCGS | Pottawattamie County Genealogical Society (Council Bluffs, IA; est. 1992) |
| PCGS | Professional Coin Grading Society |