A dud is an ammunition round or explosive that fails to fire or detonate.
Dud, DUD, Duds or Dudd may also refer to:
Film and television Duds (film), a 1920 American silent mystery Dud, a comedy character; see Pete and Dud Dudd, in Spanish animated series Glumpers Dudley A. "Dud" Wash, one of The Darlings, on The Andy Griffith Show
People In sport Dud Beattie (1934–2016), Australian rugby league player Dud Branom (1897–1980), American baseball infielder Dudley DeGroot (1899–1970), American football coach Ernest Dud Lee (1899–1971), American baseball infielder Dud Millard (1901–1954), Australian rugby league player Dudley Perkins (motorcyclist) (1893–1978), American motorbike dealer and racer Dudley Richards (1932–1961), American figure skater
Others Dudd (died between 781 and 785), Bishop of Winchester William Odell Dud Bascomb (1916–1972), American jazz trumpeter Dudd or Dud Dudley (1600–1684), English metallurgist, soldier, military engineer and munitions supplier Dud Lastrapes (born 1929), American businessman and politician - see List of mayors of Lafayette, Louisiana Dud Murra of Wadai (1881–1927), last ruler of Wadai, Central Africa Yuri Dud (born 1986), Russian journalist and YouTuber
Places Delap-Uliga-Djarrit, Majuro, Marshall Islands Dud, Târnova, Arad, Romania Dunedin Airport, New Zealand (IATA:DUD)
Other uses Duds, slang for clothing Hun-Saare language, spoken in Nigeria (ISO 636:dud)
See also Milk Duds, a candy , a US Navy floating derrick