| Acronym | Definition |
|---|
| PTHC | Philadelphia Trans-Health Conference (Philadelphia, PA) |
| PTHC | Percutaneous Transhepatic Cholangiography |
| PTHC | Peterborough Town Hockey Club (UK) |
| PTHC | Personal Touch Home Care, Inc. |
| PTHC | Pre-Teen Hard Core (illegal child pornography) |
| PTHC | Peripheral Thyroid Hormone Conversion |
| PTHC | Peters Township Hockey Club (Pennsylvania) |
| PTHC | Palm Trademark Holding Company |
| PTHC | pigmented terminal hair cysts |
| PTHC | Panning the Thames for Humble Contributions (Birchgrove Group) |
| PTHC | Pressure, Temperature, and Humidity Control |
| PTHC | Professional Tree Health Care, LLC (Bradley, WV) |