ITS, its or it's may refer to:

Language

* 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 The International Thespian Society (ITS) is an honor society for high school A secondary school, high school, or senior school, is an institution that provides secondary education. Some secondary schools provide both ''lower secondary educ ...

, 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 intelligent tutoring system (ITS) is a computer system that imitates human tutors and aims to provide immediate and customized instruction or feedback to learners, usually without requiring intervention from a human teacher. ITSs have the comm ...

, 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 Internal transcribed spacer (ITS) is the spacer DNA situated between the small-subunit ribosomal RNA (rRNA) and large-subunit rRNA genes in the chromosome or the corresponding transcribed region in the polycistronic rRNA precursor transcript. ...

, 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 associated with the Marina Militare, the Italian Navy of the Republic of Italy *

Intelligent transportation system An intelligent transportation system (ITS) is an advanced application that aims to provide services relating to different modes of transport and traffic management and enable users to be better informed and make safer, more coordinated, and 's ...

, 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