ATO

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

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 the British Armed Force
Anti-Terrorist Operation in Ukraine, the Ukrainian government's operation in the
war in Donbas
, 2014-current time, since 2018 it has been called Joint Forces Operation.
- ATO zone
  , the official name for territory where the war in Donbas takes place
A US Navy hull classification symbol: Fleet tug, old (ATO)

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

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