Don John may refer to: People John of Austria (1547–1578), Habsburg admiral John of Austria the Younger (1629–1679), Habsburg general Other uses Don John (horse), a British Thoroughbred racehorse Don John, a character in Much Ado About Nothing Don John, an 1882 novel by Jean Ingelow See also Don Jon, a 2013 film The Jester Don John of Austria, a 1633 portrait by Diego Velázquez Donjon (disambiguation) Donald John (disambiguation) Don Juan (disambiguation)