UI
UI stands for:
- UI-Cup, a European football cup competition, see UEFA Intertoto Cup
- Unit Interval , an auxiliary unit of measurement for evaluating jitter
- United Internet , German telecommunications company
- United Ireland , proposed national reorganization of the island of Ireland
- Universal indicator in chemistry
- University of Idaho
- University of Iowa
- Unix International , one of the predecessor organizations of the Open Group promoting Unix
- User Interface , German user interface
- Russian Federation (ICAO code)
- Ilmenau station (DS100 code)
- Eurocypria (IATA code), Cypriot airline
UI as a distinguishing mark on license plates:
- Northern Ireland: City of Derry (Londonderry)
Ui stands for:
- Ui (band) , American rock band
- Ui (Irtysh) , a tributary of the Irtysh in Russia
- Ui (Tobol) , a tributary of the Tobol in Russia
Ui is the name or family name of the following people / characters:
- Arturo Ui , character in the play The Resistant Rise of Arturo Ui by Bertolt Brecht
- Ui Hakuju (1882–1963), Japanese expert on Indian philosophy
- Michio Ui (* 1933), Japanese biochemist
- Yōichi Ui (* 1972), Japanese motorcycle racer
U i stands for:
- U i , induced voltage, see electromagnetic induction
