Pai

Pai or PAI may refer to:

• Pai (surname), Indian surname from coastal Karnataka and Goa plus people with the name
• Pai (Chinese surname), includes Chinese name origin, plus people with the name

• Pai (Manga character), a character from "3x3 Eyes"
• Pie (Tokyo Mew Mew), a villain from the manga and anime series Tokyo Mew Mew

• Pai, Iran, a village in Isfahan Province
• Pai, Thailand, a small town in Mae Hong Son Province
  • Pai District, the district around the town
  • Pai River
  • Pai Airport
• Pai, Tank, a union council in Pakistan
• Pai Northern Thai Kitchen, a restaurant chain in Toronto, Canada

• Gwat Pai, Chinese dominoes set
• Pai Gow, Chinese gambling game
  • Pai gow poker, Americanized version

• Pai languages (Paipai, Walapai, Havasupai)
• Pai dialect of the Northern Sotho language
• Pai (fish trap)
• "Pai", a 2016 song by Bad Gyal

• PAI Partners, a French private equity firm
• PAI (Personal Activity Intelligence), a fitness indicator developed by researcher Ulrik Wisløff
• Parachute Association of Ireland, a representative/regulatory body for skydivers in Ireland
• Parti Africain de l’Indépendance (African Independence Party), a former political party in Bourkina Faso
• PartnerAid International, a German-based Christian humanitarian organization
• Partnership on AI, US-based tech nonprofit committed to responsible AI use
• Pathogenicity island, a distinct class of genomic island which is acquired by horizontal transfer
• Periodic annual increment
• Persatuan Arab Indonesia, an association of Arab Indonesians
• Personality Assessment Inventory, a test given by psychologists
• Photoacoustic imaging
• Plasminogen activator inhibitor-1 (PAI-1), a protein that inhibits fibrinolysis (breakdown of blood clots)
• Plasminogen activator inhibitor-2 (PAI-2), another protein that inhibits fibrinolysis
• Poalei Agudat Yisrael, an Israeli political party
• Polizia dell'Africa Italiana (Italian Police of Africa, police force in the Italian colonies
• Polyamide-imide, a thermoplastic polymer
• Polyatomic ion
• Population Action International
• Primary adrenal insufficiency (primary adrenocortical insufficiency), that is, Addison's disease, a rare endocrine disorder
• Public Accountability Initiative