Sir Henry Marks (5 February 1861 – 5 June 1938) was an Australian-born Fijian politician, serving as a member of the Legislative Council of Fiji for over twenty years.
Alongside Robert Crompton, John Maynard Hedstrom and Henry Milne Scott, he was one of the 'big four' that heavily influenced the Fijian economy and political sphere in the first half of the 20th century.