Harry Johnston (disambiguation)

Harry Johnston (1858–1927) was a British explorer, botanist and colonial administrator.

Harry Johnston may also refer to:
 * Harry Johnston (surveyor) (1853–1915), Australian Surveyor General
 * Harry Johnston (American politician) (born 1931), American politician
 * Harry Johnston (footballer, born 1871) (1871–1936), Scottish footballer (Sunderland AFC)
 * Harry Johnston (footballer, born 1919) (1919–1973), English footballer (Blackpool FC, national team)
 * Harry Johnston (footballer, born 1949), Scottish footballer (Montrose, Partick) and cricketer
 * Harry Johnston (Irish footballer), Irish footballer, active in the 1920s
 * Harry Johnston (Canadian politician) (1887–1943), British Columbia MLA
 * Harry Herron Johnston (1888–1970), American football coach for the Doane College Tigers