PHA

• Phytohaemagglutinin, a type of lectin in plants
• Polycyclic aromatic hydrocarbons
• Polyhydroxyalkanoate, natural polyesters
• Potentially hazardous asteroid
• Process hazard analysis of an industrial process
• Pseudohypoaldosteronism, a condition that mimics hypoaldosteronism but with high levels of aldosteron
• Pulse-height analyzer, an electronic instrument

• Partnership for a Healthier America, US
• Pakistan Housing Authority
• Parks and Horticulture Authority, Lahore, Pakistan
• Philadelphia Housing Authority, US
• Prince Hall Affiliated, US
• Private Hospitals Association (Jordan)
• Pulmonary Hypertension Association, US
• Puntland Highway Authority, Somalia

• Amphoe Pha Khao, Loei Province, Thailand
• Amphoe Phu Pha Man, Khon Kaen Province, Thailand
• Amphoe Tha Wang Pha, Nan Province, northern Thailand
• Amphoe Thong Pha Phum, Kanchanaburi Province, Thailand
• Cẩm Phả, Quảng Ninh Province, Vietnam
• Ko Pha Ngan, an island in the Gulf of Thailand
• Pha Oudom District, Bokeo Province, Laos
• Pha Taem, a national park in Thailand
• Pha That Luang, a Buddhist stupa in Vientiane, and a national symbol of Laos
• Than Sadet–Ko Pha-ngan National Park, Thailand

• Hso Khan Pha (1938–2016), Burmese geologist
• Jazze Pha (stage name of Phalon Anton Alexander), American rapper, songwriter and producer
• Jazze Pha production discography
• Pha Terrell (1910–1945), American jazz singer

• Anime Syuukan DX! Mi-Pha-Pu, a Japanese anime series
• Pha Lai Power Station, Vietnam
• Peripheral Heart Action Training in bodybuilding
• Pha (Indic), a consonant

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