Its

• It's, an English contraction of it is or it has • Its (pronoun), the possessive form of the pronoun it • Itsekiri language (ISO 639 language code its), a language found in Nigeria and the Niger Delta ==Arts and entertainment==

• Improvisational Tribal Style, a subgenre of Tribal Style belly dance • ''It's'' (EP), by Teen Top, 2012 ==Businesses==

• Illinois Traction System, an American railroad • Industrial Tomography Systems, a manufacturer of process visualization systems based upon the principles of tomography • International Transportation Service, an American container terminal company ==Education==

• Indian Theological Seminary, an interdenominational seminary in India • Sepuluh Nopember Institute of Technology (Institut Teknologi Sepuluh Nopember), a public engineering institute in Surabaya, Indonesia • Institute for Transport Studies, University of Leeds (ITS Leeds) • Institute of Technological Studies, Sri Lanka • Institute of Technology, Sligo, Ireland • Institute of Transportation Studies, University of California Berkeley, Davis, Irvine and Los Angeles ==Organizations==

• Identity, Tradition, Sovereignty, a former political grouping in the European Parliament • Indian Telecommunication Service, an organised civil service of Government of India • Indian Trade Service • International Thespian Society, an honorary organization for high school and middle school theatre students • International Tracing Service • International trade secretariat • International Typographers' Secretariat, a former international trade secretariat • Irish Texts Society, promoting the study of literature • Irish Thoracic Society • Islamic Texts Society, an educational charity based in Cambridge, UK • Islamic Thinkers Society • Individualists Tending to the Wild (), an eco-extremist terrorist group in Mexico ==Science and technology==

Computing • Incompatible Timesharing System, a computer operating system • Intelligent tutoring system, an artificial intelligence system used for tutoring • Internationalization Tag Set, a W3C recommendation for internationalizing XML • Issue tracking system, computer software that manages product issues Other science and technology • Inverse transform sampling, a method for generating random numbers from various probability distribution • Internal transcribed spacer, a section of DNA located within a set of ribosomal genes • Interrupted time series, a time series of data known to be affected by interventions ==Vehicular and transport==

• ITS, a ship prefix formerly used by the Italian Navy of the Republic of Italy • Intelligent transportation system, transportation infrastructure information technology • Interplanetary Transport System, a project by SpaceX to develop a system capable of transporting humans and cargo to Mars and other destinations in space • Inter-State Aviation (ICAO airline code ITS), U.S. airline; see List of airline codes (I) ==Other uses==

• Integrated Truss Structure, a component of the International Space Station ==See also==