John Douglass may refer to:
John Douglass (bishop) (1743–1812), English Catholic vicar-apostolic John J. Douglass (1873–1939), U.S. Representative John Thomas Douglass (1847–1886), American composer and violinist John W. Douglass (born 1941), American military officer and politician John W. Douglass (politician), Maryland politician John W. Douglass (IRS Commissioner) John Watkinson Douglass (1827–1909), American politician Jack Douglass (John Patrick Douglass, born 1988), internet personality
See also John Douglas (disambiguation) Jonathon Douglass, Christian musician