| Acronym | Definition |
|---|
| PTH | Pass the Hash (hacking technique) |
| PTH | Parathyroid Hormone |
| PTH | Protest the Hero (band) |
| PTH | Port Huron (Amtrak station code; Port Huron, MI) |
| PTH | Path (aviation) |
| PTH | Polskie Towarzystwo Historyczne (Polish: Polish Historical Society) |
| PTH | Plated Through Hole (semiconductor manufacturing) |
| PTH | Power Threshold |
| PTH | Partially Torn Hamstring (injury) |
| PTH | Push to Hear (in-ear monitor) |
| PTH | Putonghua (Chinese: Mandarin) |
| PTH | Picture the Homeless (homeless rights organization; New York, NY) |
| PTH | Phenylthiohydantoin |
| PTH | Pin Through Hole (printed circuit boards) |
| PTH | Post-Transfusion Hepatitis (medical condition) |
| PTH | Pedagogisch Technische Hogeschool (Netherlands Technical Teacher Training) |
| PTH | Purolator Tackle Hunger (food program; Canada) |
| PTH | Peace through Health (Canada) |
| PTH | Provincial Trunk Highway (Canada) |
| PTH | Price Trace Hawes (UK) |
| PTH | Protect the Human (Amnesty International) |
| PTH | Puissance Thermique (French: Thermal Power) |
| PTH | Prime Tanning Hours |
| PTH | Planet Tony Hawk (gaming website) |
| PTH | Prelude to Hope (film by Clear Concrete Productions) |
| PTH | Put Through Hole (integrated circuits packaging) |
| PTH | Pro-femmes Twese Hamwe (Rwanda) |
| PTH | Precipitation Top Height |
