ITS

ITS, it's or its can mean:

* "its", the possessive adjective and possessive pronoun form of the personal pronoun it
* "it's", a contraction of "it is" or "it has"
* The "It's" man, a man with torn clothes and unkempt beard who appeared at the beginning of episodes of "Monty Python's Flying Circus"

;Art
* International Typographic Style, a graphic design style developed in Switzerland in the 1950s

;Computing
* Incompatible Timesharing System, a computer operating system
* Internet technical support, a unit of an Internet Service Provider that provides support services
* Intelligent tutoring system, an artificial intelligence system used for tutoring
* Issue tracking system, computer software packages that manage and maintain lists of issues, as needed by an organization
* Information Technology Services, a generic name for a computer support department
* iTunes Store
* Internationalization Tag Set, a W3C recommendation for internationalizing XML
* Implementation Technology Specification, in computing related to medical applications.

;Dance
* Improv Tribal Style Belly Dance, a sub-genre of Tribal Style Belly Dance

;Education
* Instructional Technology Specialist, a person who works with teachers and students to help them integrate instructional or educational technology into teaching and learning environments
* Institute of Technology, Sligo, Ireland
* Institut Teknologi Sepuluh Nopember, in Surabaya, Indonesia
* Intelligent tutoring system, an artificial intelligence system used for tutoring

;Fashion
* ITS International Talent Support, an international fashion, accessories and photo competition

;Music
* In the Shadows, a song by Finnish band The Rasmus

;Organizations
* Islamic Thinkers Society
* International Thespian Society, an honorary organization for high school and middle school theatre students
* International Tracing Service
* Identity, Tradition, Sovereignty, a former political grouping in the European Parliament

;Science and engineering
* Integrated Truss Structure, a component of the International Space Station
* Intelligent Transport Systems and Services (ITS annual World Congress)
* Intelligent Transportation System, application of IT to transportation
* ITS-90, or International Temperature Scale, which provides the defining points for temperature
* Internal transcribed spacer, a section of DNA located within a set of ribosomal genes
* International Temperature Scale of 1990, a temperature calibration standard for measurements in units of Kelvin and Celsius.

;Other
* Integrated/Embedded Mission Training Systems by Simlat
* Insertion Test Signal, A set of analogue test signals inserted on lines in the VBI. Also known as VITS.