DCU may refer to:D.C. United, an American professional soccer team based in Washington, D.C., United States DC Universe, the fictional universe that serves as a setting for DC Comics stories DC Universe (franchise), a media franchise Daegu Catholic University, a university in South Korea Dublin City University DCU GAA, a Gaelic games club in Dublin City University Digital Federal Credit Union, a credit union based in Marlborough, Massachusetts, United States DCU Center, an indoor arena in Worcester, Massachusetts, United States Delphi Compiled Unit, an object file for the programming language Delphi (software) Desert Camouflage Uniform, a U.S. military uniform that was used in arid areas during the 1990s and 2000s Detached Carrier Unit of the United States Postal Service Pryor Field Regional Airport, an airport Decatur, Alabama, United States, with the IATA code DCU Dicyclohexylurea, an organic compound Door control unit, an automotive electronic system Diabetes Care Unit, a unit at University of Malaya Medical Centre, Kuala Lumpur, Malaysia