| Acronym | Definition |
|---|
| PHT | Petrol Hedge Trimmer (gardening tool) |
| PHT | Peak Hour Traffic (various locations) |
| PHT | Physician Heal Thyself (various locations) |
| PHT | Pro Hockey Talk (NBC Sports) |
| PHT | Public Health Trust (Miami-Dade County, Florida) |
| PHT | Pseudo Hadamard Transform |
| PHT | Phenytoin (antiepileptic, Dilantin) |
| PHT | Pulmonary Hypertension |
| PHT | Pharmacy Technician |
| PHT | Preliminary Hearing Transcript (law) |
| PHT | Post-Harvest Technology |
| PHT | Pressure Half Time |
| PHT | Passive Hemagglutination Test |
| PHT | Pattern History Table |
| PHT | Philippine Time (time zone; aka Philippine Standard Time; also seen as PST) |
| PHT | Primary Heat Transport (nuclear power plants) |
| PHT | Potomac Heritage Trail (est. 1983) |
| PHT | Penile Hair Tourniquet (ischemia) |
| PHT | Pseudo-Hadamard Transform (Twofish, SAFER) |
| PHT | Parallel Hybrid Truck (General Motors) |
| PHT | Phototube |
| PHT | Prisoner Handling Team (UK) |
| PHT | Public Health Team |
| PHT | Performance Health Technologies Inc. |
| PHT | Packaging, Handling & Transportation |
| PHT | Putting Hubby Thru |
| PHT | Professional Horse Trainer (certification) |
| PHT | Peace, Harmony & Tranquility |
| PHT | Parameterized Hypertext (web server side scripting languages) |