HAI or hai may refer to:
Films Hai (film), a 2002 Telugu film Hai, a 2017 Kannada film
People
Surname Hai, a variant on the Chinese Xǔ (surname) (許/许) Hǎi, a Chinese surname (海) Hoàng Hải (born 1982), Vietnamese singer Thanh Hải (1930–1980), Vietnamese poet Fawzia Saeed Hai (1942–1968), Pakistani model
Given name Hai Gaon (939–1038), Jewish theologian, rabbi and scholar Yu Hai (born 1987), Chinese footballer Hai Lam (footballer), Norwegian footballer Hai Du Lam, American League of Legends player
Places Hai, Lviv Oblast (Ukrainian: ), a village in Ukraine Hai (Ukrainian: ), a village in Boiany Commune, Novoselytsia Raion, Ukraine Hai District, Tanzania Hai River, China Haiti, IOC and UNDP code HAI
Technology Hai (midget submarine), a German submarine from World War II Hai (keelboat), a sloop-rigged one-design yacht class Hellenic Aerospace Industry Helicopter Association International Hemagglutination inhibition assay
Other uses Haï, a book by Jean-Marie Gustave Le Clézio Hái!, a 2003 album by The Creatures Hai (Cantonese profanity) Hai (magazine), an Indonesian weekly for teenage boys Hai (symbol) or chai, letters of the Hebrew alphabet Hai! (Live in Japan), a 1982 album by Cabaret Voltaire Hai dialect, of West Kilimanjaro language Health Action International, non-profit organization based in The Netherlands Heterosexual Anal Intercourse, see Anal sex Hospital-acquired infection, or healthcare-associated infection Humanist Association of Ireland Wolfpack Hai, a wolfpack of German U-boats during World War II Half as Interesting, a YouTube channel hosted by Sam Denby
See also Hailuoto Jai (disambiguation)