| Acronym | Definition |
|---|
| PHA➣Phoenix (Amtrak airport station code; Phoenix, AZ) |
| PHA➣Phase |
| PHA➣Periodic Health Assessment (US Army) |
| PHA➣Public Housing Authority |
| PHA➣Public Health Association (various organizations) |
| PHA➣Phytohemagglutinin (a polyclonal T-cell activator) |
| PHA➣Process Hazard Analysis |
| PHA➣Pulmonary Hypertension Association (Silver Spring, MD; formerly United Patients Association for Pulmonary Hypertension) |
| PHA➣Pure Hyaluronic Acid |
| PHA➣Public Health Act (various locations) |
| PHA➣Philadelphia Housing Authority (Philadelphia, PA) |
| PHA➣Public Housing Assessment |
| PHA➣Public Health Advisory (US FDA) |
| PHA➣Polyhydroxyalkanoate |
| PHA➣Prince Hall Affiliated (Freemason) |
| PHA➣Personal Health Assessment |
| PHA➣Pyeong Hwa Automotive |
| PHA➣Peer Health Advocates (various schools) |
| PHA➣People living with HIV/AIDS |
| PHA➣Preliminary Hazard Analysis |
| PHA➣Peak Horizontal Acceleration (engineering) |
| PHA➣Public Health Administrator |
| PHA➣Providence Housing Authority (Rhode Island) |
| PHA➣Public Housing Administration |
| PHA➣Potentially Hazardous Asteroid |
| PHA➣Preventive Health Assessment |
| PHA➣Portland Housing Authority (Portland, ME) |
| PHA➣Pakistan Housing Authority |
| PHA➣People's Health Assembly |
| PHA➣Public Highway Authority |
| PHA➣Partnership for Health and Accountability (Georgia) |
| PHA➣Pelger-Huet Anomaly |
| PHA➣Physical Health Assessment |
| PHA➣Public Health Association of Australia |
| PHA➣Project Home Again (various locations) |
| PHA➣Philippine Hospital Association |
| PHA➣Palomino Horse Association |
| PHA➣Pinto Horse Association |
| PHA➣Protocol Handler (ATM) |
| PHA➣Push Accumulator on Stack (6502 processor instruction) |
| PHA➣Position Hazard Analysis (USACE safety management action plan) |
| PHA➣Personnel Holding Area (US Army) |
| PHA➣Preventative Health Assessment |
| PHA➣Production Handling Agreement |
| PHA➣Pullet Hatcheries Association (UK) |
| PHA➣Pulse Height Analyzer/Analysis |
| PHA➣Pyramidal-Horn Antenna |
| PHA➣Pulpwood Harvesting Area (forestry) |
| PHA➣President's House Association (Georgetown College; Kentucky) |
| PHA➣Passenger Hold Area |