Sir Henry Hamilton Johnston GCMG KCB (12 June 1858 – 31 July 1927) was a British explorer, botanist, artist, colonial administrator, and linguist who travelled widely across Africa to speak some of the languages spoken by people on that continent. He published 40 books on subjects related to the continent of Africa and was one of the key players in the Scramble for Africa that occurred at the end of the 19th century.