UI

UI, Ui, or ui may refer to:

Arts and entertainment

 * Ui (band), an American post-rock band
 * UI (film), an Indian Kannada-language film set for release in 2024
 * Ui Hirasawa, a character from the manga series K-On!
 * Ui Miyazaki (born 1981), Japanese voice actress
 * Ui Shigure, Japanese illustrator
 * Arturo Ui, a fictional character from The Resistible Rise of Arturo Ui by Bertolt Brecht
 * Youichi Ui (born 1972), Japanese motorcycle road racer
 * Manami Ui (born 1986), Japanese model

Universities

 * University of Ibadan, Nigeria
 * University of Iceland
 * University of Idaho, US
 * University of Illinois, US
 * University of Iloilo, Philippines
 * University of Indonesia
 * University of Innsbruck, Austria
 * University of Iowa, US
 * Universities Ireland, Northern Ireland
 * University of Isfahan, Iran

Other businesses and organizations

 * The United Illuminating Company, a regional electric distribution company in the northeastern US
 * Eurocypria Airlines (IATA airline designator UI)
 * Ubiquiti, an American technology company
 * Unix International, an open-standard association

Computing

 * Unit interval (data transmission), also pulse time or signal duration time
 * User interface, between human and machine

Other uses in science, technology, and mathematics

 * International unit, typically used for medication dose
 * Unit injector for diesel engines
 * Urinary incontinence

Other uses

 * Ui (digraph), used in some writing systems
 * Unauthorised information; see Glossary of contract bridge terms
 * Unemployment insurance
 * United Ireland, a proposed state
 * Universitas Indonesia railway station at the University of Indonesia