Alexander Douglas

Alexander or Alex Douglas may refer to:


 * Alexander Douglas (bishop-designate) (fl. 1528), Scottish noble and cleric, bishop-elect of Moray
 * Alexander Douglas (bishop) (died 1623), Roman Catholic Bishop of Moray, Scotland
 * Sir Alexander Douglas (Orkney and Shetland) (died 1718), Member of Parliament for Orkney and Shetland, 1708–1713
 * Alexander Douglas-Hamilton, Marquess of Douglas and Clydesdale (born 1978), Scottish aristocrat
 * Alexander Edgar Douglas (1916–1981), Canadian physicist
 * Alexander Stuart Douglas (1921–1998), physician and haematologist
 * Alex Douglas (footballer), Scottish footballer
 * Alex Douglas (politician) (born 1958), Queensland Member of Parliament for Gaven
 * A.S. Douglas (Alexander Shafto Douglas, born 1921), British professor of computer science
 * Alex Douglas, a character in the 1984 American film The Ambassador