TSO
Template:Sister project TSO may refer to:
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Science and technology
- Technical Standard Order, a minimum performance standard issued by the FAA for certain items used on civil aircraft
- Transmission system operator, an entity involved in electric power transmission or transmission of natural gas
- Trichuris suis, a species of whipworm, a parasite of pigs
Computing
- TCP segmentation offloading, a technique for increasing outbound throughput of high-bandwidth network connections
- Time Sharing Option, an interactive command line interpreter for IBM mainframe operating systems OS/360, SVS, MVS, OS/390 and z/OS
- Total store order, in microprocessor memory ordering
Music
- Taipei Symphony Orchestra
- Tasmanian Symphony Orchestra
- Tehran Symphony Orchestra
- The Summer Obsession
- Tokyo Symphony Orchestra
- Toledo Symphony Orchestra
- Toronto Symphony Orchestra
- Trans-Siberian Orchestra
- Tucson Symphony Orchestra
Transportation
- Transaero Airlines (ICAO airline designator code), a former Russian airline
- Tresco Heliport (IATA airport code), a former heliport in the Scilly islands
- Tourist Standard Open, a type of British Railways loco-hauled coach
- Trailer Standard Open, a type of British Railways coach
- Marcos TSO, a sports car manufactured by Marcos Engineering Ltd
- Transportation security officer, a federal employee of the Transportation Security Administration, a division of the U. S. Department of Homeland Security
Other uses
- Threefold social order, a sociological theory involving the relationship of economy, polity and culture
- The Sims Online, a massively multiplayer game
- The Stationery Office, a British publisher
- Total shares outstanding, the stock held by investors, including restricted shares, as well as those held by the public; see shares outstanding