DUI (disambiguation)
A DUI, in vehicular crime, is a charge of driving under the influence of alcohol or drugs. DUI may also refer to:

Arts and entertainment 
 D.U.I. (TV series), an American reality television series (2011–2012)
 "DUI", a song by Ciara from her 2013 album Ciara
 "D.U.I. ", a 1997 punk song by The Offspring from Club Me

Government, military and politics 
 Democratic Union for Integration, a Macedonian political party
 Distinctive unit insignia, a metal heraldic device worn in the United States Army
 Documento Único de Identidad, the national identity document of El Salvador

Other uses 
 Dui (vessel), a type of bronze vessel from ancient China
 Dui, Jalgaon district, a village in Maharashtra, India
 Diving Unlimited International,  an American diving equipment designer and manufacturer
 Melvil Dui (1851–1931), also known as Melvil Dewey, an American librarian