DK may refer to:

• .dk, the country code top level domain for Denmark
• DK (album), the abbreviation for the 2006 debut album by Danity Kane
• DK (car), a Danish automobile from the early 1950s
• Dakshina Kannada, a district in Karnataka, India
• Darryl Kile (1968-2002), American professional baseball pitcher
• Darren Knott, British disc jockey and record producer
• Dead Kennedys, an American hardcore punk band
• Denmark, a country in northern Europe
• Diels-Kranz, or Hermann Alexander Diels (1848-1922), German classical scholar
• Diskeeper, a disk defragmenter for Microsoft Windows and Open VMS
• Democratic Kampuchea, the government of present-day Cambodia from 1975-1979
• Dorling Kindersley, an international book publisher
• Dravidar Kazhagam, a political party in India
• Eastland Air, IATA airline code DK
• Derek "DK" Kitson, a character in the television series Third Watch

See also

• Donkey Kong (disambiguation)