Atu may refer to: Atu, a character in Samoan mythology Atu Bosenavulagi, an Australian rules footballer Atu, Iran, a village in Iran Atu Moli, New Zealand rugby union player Atu'u is a village on Tutuila Island, American Samoa ATU may refer to: Organizations African Telecommunications Union Allameh Tabataba'i University Amalgamated Transit Union Arkansas Tech University Atlantic Technological University ATU Network was a caucus group within the Amicus trade union Anti-Terrorist Unit (Liberia) Lučko Anti-Terrorist Unit Asian Taekwondo Union, the official governing body for Taekwondo in Asia Other uses Aarne–Thompson–Uther classification, a catalogue of folktale types Abstract Tribe Unique, rap musicians using #ATU hashtag Accumulated thermal unit Address translation unit Antenna tuning unit Finnish Rapid Deployment Force#Amphibious Task Unit Antenatal testing unit Assessment and treatment unit Autonomous territorial unit, a type of administrative division in Moldova