Don John

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
 * Don John, a character in the animated series ''Adventure Time