ATO may refer to:
Technology Abort to Orbit, an intact abort procedure for Space Shuttle launches Arsenic trioxide, a potent chemotherapeutic agent for acute promyelocytic leukemia Assisted take off ATO fuse Automatic train operation
Military Air Tasking Order, (United States Air Force) Air Training Officer, a former position at the United States Air Force Academy Ammunition Technical Officer, a designation in several armed forces Anti-Terrorist Operation in Ukraine, the Ukrainian government's operation in the war in Donbas (after 2018 it was called the Joint Forces Operation [JFO]) ATO zone, the official name for territory where the war in Donbas took place A US Navy hull classification symbol: Fleet tug, old (ATO)
Organizations Alpha Tau Omega, an American student fraternity Alpha Tau Omega (Philippines), a Filipino student fraternity Alternative Trading Organization, an NGO focusing on Fair Trade exports Air Traffic Organization, a division of the Federal Aviation Administration Air Transportation Office (Philippines), agency of the Philippine government Arab Towns Organization, a network to promote cooperation between and development of Arab cities ATO Records, a record label Australian Taxation Office, the Australian government tax agency
Other Account takeover, a form of payments and online fraud Amateur Try-Out, a type of ice hockey contract Assemble To Order, see build to order Asset turnover Atmos Energy Corporation's ticker symbol on the New York Stock Exchange Ato, another name for dap-ay, traditional meeting places of various ethnic groups in the northern Philippines ATO, the Amtrak station code for Atco (NJT station), New Jersey, U.S.A. ATO, abbreviation for atorvastatin Noah Ato-Zandanga (born 2003), Central African footballer Authority to Operate, part of a Risk Management Framework
Places Ato, Yamaguchi – a Japanese town Ato Station
See also Osman Ali Atto also written Osman Ali Ato, a Somali warlord One of three 2002 Football World Cup mascots