Eric Anderson Walker (6 September 1886 – 23 February 1976) was King George V Professor of History at the University of Cape Town and Vere Harmsworth Professor of Imperial and Naval History at the University of Cambridge. He was a pioneer in writing the history of South Africa and later an important historian of the British Empire, though by the end of his life his work was seen as dated and "Eurocentric".
Walker was born in Streatham, London on 6 September 1886 to a father of Scottish origin. He was educated at Mill Hill School, followed by a scholarship to Merton College, Oxford, from where he graduated in 1908.
He was employed as a lecturer at the University of Bristol, but in 1911 took up a lectureship at the South African College in Cape Town, subsequently the University of Cape Town, where he was soon appointed Professor of History at age only 24.
He was a prolific author, writing school text books through to Cambridge histories, and his years in Cape Town were among his most productive. He wrote the first historical atlas of South Africa in 1922, the first one-volume history of South Africa for use in schools in 1926, and in 1928, the first important general history of South Africa written before World War II. He was an accomplished biographer, writing the lives of Lord Henry de Villiers, the former chief justice of the Cape (1925), and W.P. Schreiner (1937). He felt his most readable and long-lasting work was his history of The Great Trek (1934) which he told as a romantic adventure story and which went through many editions.
In 1930 Walker gave an influential lecture in Oxford, printed as The frontier tradition in South African history (Oxford University Press, London, 1930), in which Walker outlined his theory that the origins of the apartheid system in South Africa lay in conflict between blacks and whites on the frontier regions in the nineteenth century which was then imported into the interior where it was institutionalised in the constitutions of the Orange Free State and the South African Republic. Walker's theory owed much to Frederick Jackson Turner and The Oxford History of Historical Writing described him as "in some respects the George Stanley of South Africa". His ideas in this area have since been largely rebutted.