STO

STO may refer to:

Government

 * Science & Technology Organization, a NATO organization
 * Service du travail obligatoire, French men & women between certain ages deported to Germany during WWII to work as slave labour
 * Société de transport de l'Outaouais, a public transit operator in Gatineau, Quebec, Canada
 * Sojourner Truth Organization, a defunct American leftist group
 * Sovet Truda i Oborony (Совет труда и обороны): Council of Labor and Defense, a Soviet central planning agency of the 1920s
 * United States Air Force Special Tactics Officer

Non-governmental organizations

 * State Trading Organization, a publicly owned Maldivian company
 * Statoil, a publicly traded Norwegian oil company

Science and technology

 * Semi-automatic train operation
 * Slater-type orbital, atomic orbitals
 * STO-nG basis sets, of orbitals

Sports

 * Space Tornado Ogawa, a professional wrestling throw
 * SportsTime Ohio, a regional sports network in northeast Ohio, United States

Arts and entertainment

 * Soldiers of the One, a group in the TV series Caprica
 * Star Trek Online, a massively multiplayer online role-playing game
 * STO, a posture emoticon used for representing a great admiration or great despair, see Emoticon
 * Sto, pen name of illustrator Sergio Tofano

Transport

 * STO, the National Rail station code for South Tottenham railway station, London, England
 * The airports of Stockholm, Sweden, by IATA code

Other uses

 * Safe Torque Off, an electronic signal used in industrial drives for safety function
 * Security token offering, a type of public offering in which tokenized digital securities, are sold in cryptocurrency exchanges
 * Stø, a village in Norway
 * Stoney language (ISO 639-3 code)
 * STO (professional wrestling), a maneuver in professional wrestling