Pai

Pai or PAI may refer to:

People

 * 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

Fictional characters

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

Places

 * 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

Games

 * Gwat Pai, Chinese dominoes set
 * Zi pjueai, Chinese card game
 * Pai Gow, Chinese gambling game
 * Pai gow poker, Americanized version

Other uses

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

Acronyms

 * 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
 * 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