Duk may refer to:
Duke University is a private research university located in Durham, North Carolina, United States. Founded by Methodists and Quakers in the present-day town of Trinity in 1838, the school moved to Durham in 1892. In 1924, tobacco and electric power industrialist James Buchanan Duke established The Duke Endowment, at which time the institution changed its name to honor his deceased father, Washington Duke.
The Duke lacrosse case was a 2006 criminal case in which three members of the Duke University men's lacrosse team were falsely accused of rape.
The Duke Blue Devils are the athletic teams that represent Duke University. Its 26 varsity teams compete in the Atlantic Coast Conference.
Duke Nukem 3D is a first-person shooter video game developed by 3D Realms and published by GT Interactive Software.
Duke Energy, headquartered in Charlotte, North Carolina, is an electric power holding company in the United States, with assets also in Canada and Latin America.
Duke of Hamilton is a title in the Peerage of Scotland, created in 1643. It is the senior dukedom in that Peerage (except for the Dukedom of Rothesay held by the Sovereign's eldest son), and as such its holder is the Premier Peer of Scotland, as well as being head of both the House of Hamilton and the House of Douglas.
The Duke Blue Devils men's basketball team is the college basketball program representing Duke University.
Duke of Somerset is a title in the peerage of England that has been created several times. Derived from the county of Somerset, it is particularly associated with two families: the Beauforts who held the title from the creation of 1448, and the Seymours from the creation of 1547, in whose name the title is still held.
Edward Kennedy "Duke" Ellington (April 29, 1899 – May 24, 1974) was an American composer, pianist, and bandleader of a jazz orchestra, which he led from 1923 until his death in a career spanning over fifty years.