Sir Ebenezer John Buchanan (8 March 1844 – 11 October 1930) was a journalist, politician and judge of the Colony of the Cape of Good Hope.

He received his schooling in Pietermaritzburg, after which he began his journalistic career with The Natal Witness.

He also entered politics and in 1877 he became the member for the Worcester in the Cape Legislative Assembly.

On several occasions, when Lord de Villiers was not available, he acted as chief justice and in this capacity, he presided over the Cape Legislative Council in the parliamentary sessions of 1894, 1897, 1900 and 1905.

[3] In the field of education, Buchanan was a member of the council of the University of the Cape of Good Hope from 1888 until 1918, and its vice-chancellor from 1901 to 1905.