DDR or ddr may refer to:
Arts and media Dance Dance Revolution, a musical video game series produced by Konami Dolores del Río, Mexican actress Dr Disrespect, an American live streamer (born 1982)
Transport infrastructure Dadar railway station, Mumbai, India (station code "DDR") Dordrecht railway station, Dordrecht, the Netherlands (station code "Ddr") Shigatse Tingri Airport, Tibet, China (IATA airport code DDR)
Science and technology DASD Dump Restore, an IBM utility DNA-damage response, for repairing damaged DNA Double data rate, a data transfer strategy of a computer bus DDR SDRAM, a computer memory standard that uses double-data-rate transfers
Other uses , official name of the former East Germany (1949–1990) Dhudhuroa language (ISO 639-3 code "ddr") Disarmament, demobilization and reintegration, a component of peace processes DDr., title for a double doctorate in Germany Developers Diversified Reality and DDR Corp., former names for SITE Centers Corp