GTS may refer to: Education General Theological Seminary, in New York City Grace Theological Seminary, in Winona Lake, Indiana Great Torrington School, in Devon, England Organisations Game Technology Solutions, a Sri Lankan game development studio Game Theory Society, a society for the promotion of research, teaching and application of game theory Good Thinking Society, a British skeptical organisation Global Telecommunications System, the communication system for meteorological data Transport Gas Turbine Ship, used as a ship prefix Geelong Transit System, in Victoria, Australia The Granites Airport, IATA airport code "GTS" Gran Turismo Special, or Gran Turismo Spider, or Gran Turismo Sport, a grand tourer appellation used by several automobiles, including: Dodge Viper GTS Farboud GTS Ferrari 330 GTS Ferrari 365 GTS Holden Monaro GTS HSV GTS Lightning GTS Toyota 86 GTS Vespa GTS, a scooter manufactured by Piaggio under the Vespa brand Other uses GeForce2 GTS, a model of GPU marketed by Nvidia Geologic time scale, a system of chronological dating that relates geological strata to time Gilles de la Tourette syndrome, or Tourette's syndrome, a neurodevelopmental disorder characterised by involuntary movements and speech Global Telecommunications System, a global network for the transmission of meteorological data Global Trade Station, a location in Pokémon games GNU Triangulated Surface library, a library of algorithms for handling surface meshes Go to Sleep (wrestling), a professional wrestling attack Grand Touring Supreme, a category in the IMSA GT Championship Great Trigonometrical Survey, a geodetic survey of India Green Tobacco Sickness, a type of nicotine poisoning Greenwich Time Signal, a series of six short tones broadcast at one-second intervals by many BBC Radio stations GTS/BKN, a television channel in South Australia Giant tiny sex, fetish subculture slang for macrophilia Gran Turismo Sport, a video racing game released in 2017