It or IT may refer to:

• It (pronoun), in English
• Information technology

• It (1927 film), a film starring Clara Bow
• It! The Terror from Beyond Space, a 1958 science fiction film
• It! (1967 film), a British horror film starring Roddy McDowell
• It (1989 film), a Soviet comedy film directed by Sergei Ovcharov
• It (miniseries), a 1990 television miniseries film based on Stephen King's novel
• It (Phish video), a 2004 DVD set about the Phish festival
• Incredible Tales, simply known as I.T., a 2004 Singaporean horror anthology TV series
• I.T. (film), a 2016 film starring Pierce Brosnan
• It (2017 film), a film adaptation of Stephen King's novel
  • It Chapter Two (2019), the direct sequel to the 2017 film
  • It – Welcome to Derry, an upcoming prequel television series scheduled to be released in 2025

• It, properly the Psammead, the title character of the 1902 novel Five Children and It
• It! The Living Colossus, a 1961 comic book character
• IT, a character in the 1962 novel A Wrinkle in Time
• It (character), the title character from Stephen King's 1986 novel It (also known as Pennywise)
• It, a character from the video game Baba Is You

• IT, previous name of the Irish Tatler, see Tatler (1901)
• International Times, est. 1966, a fortnightly newspaper
• Illinois Times, est. 1975, a weekly newspaper

• "It!" (short story), a 1940 short story by Theodore Sturgeon
• It (poetry collection), a 1969 book of poetry by Inger Christensen
• It (novel), a 1986 novel by Stephen King
• It, a 2013 book by British model and presenter Alexa Chung

• It (Phish festival), since 1990, the band's festivals and tours in the United States
• "IT" (XM), from 2002 to 2007, an annual radio special, with most songs aired in chronological order

• It (Pulp album), 1983
• It (Alan Vega album), 2017

• Tony Särkkä or It, a Swedish black metal musician

• "It", a 1974 song by Genesis from The Lamb Lies Down on Broadway
• "It", a 1987 song by Prince from Sign "O" the Times
• "iT" [sic], a 2014 song by Christine and the Queens from Chaleur humaine
• "It", a 2015 song by Niki & Gabi

• Tag (game), or It, since at least the fourth century BC
• It (board game), a 1978 tank battle game

• .it, the Internet top-level domain for Italy
• Inferior temporal gyrus, a.k.a. IT cortex, a region of the brain
• IT (file format), an audio file format used by Impulse Tracker
• IT, an electrical network earthing system
• Integration testing (usually I&T), a phase in software testing
• Intrathecal administration and intratracheal instillation, routes of drug administration
• Isomeric transition, a decay process in an atomic nucleus
• it drive (1998–2002), a 144 MB superfloppy drive by Caleb

• Iran Time
• Italy (ISO 3166 code)
• Italian language (ISO 639-1 code)

• Air Inter (IATA Code 1954–1997), France
• Kingfisher Airlines (IATA Code 2003–2012), India
• Intelligent Transit, a 2009–2015 bus service in West Virginia, U.S.

• As of the 1970s, a series of Yamaha Enduro motorcycles
• Dynasty IT, a 2001 car

• IT, dated between the 6th and 4th century BCE, in sutras by Pāṇini
• It, a ropes course at several locations of Jordan's Furniture, founded 1918 in New England
• I.T, founded 1988, a Hong Kong fashion conglomerate

• It girl, a charismatic young woman
• Cousin Itt, character in The Addams Family
• Getting It: The Psychology of est