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
  • ATO fuse
  • Automatic train operation
  • Assisted take off

==Military== <!-- Needs sorting into sections -->

  • 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

  • Ato, another name for dap-ay, traditional meeting places of various ethnic groups in the northern Philippines
  • Account takeover, a form of payments and online fraud
  • Assemble To Order, see build to order
  • Asset turnover
  • ATO, the Amtrak station code for Atco (NJT station), New Jersey, U.S.A.
  • Atmos Energy Corporation's ticker symbol on the New York Stock Exchange
  • Authority to Operate, part of a Risk Management Framework
  • Amateur Try-Out, a type of ice hockey contract
  • Noah Ato-Zandanga (born 2003), Central African footballer

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