ATO
From Free net encyclopedia
ATO may stand for:
- Air Training Officer, a former position at the United States Air Force Academy
- Alpha Tau Omega, an American student fraternity
- Alternative trading organization, a non-governmental organization which promotes trade
- Ammunition Technical Officer, a designation in the British Armed Forces
- Atmos Energy Corporation's ticker symbol on the New York Stock Exchange
- Australian Taxation Office, the Australian government agency which collects taxes and enforces taxation legislation
- Authority To Operate
- Automatic train operation