Alexander John may refer to:
Prince Alexander John of Wales (1871–1871), son of King Edward VII and Queen Alexandra Alexander John (athlete) (born 1986), German track and field athlete Alexander St John (died 1657), English politician Aleksander John, alias of Slovenian-Yugoslavian musician Aleksander Mežek (born 1948)
See also John Alexander (disambiguation) Aleksander John Tenement, a building in Warsaw, Poland