George Heaton Nicholls, PC (1876 – 25 September 1959) was a British-born South African politician.
Born in England, Nicholls served with the British Army in India, and saw action in the Burma and Tirah campaigns.
He joined the British South Africa Police in 1902, and accompanied Chief Lewanika to the coronation of King Edward VII.
Returning to South Africa to engage in sugar farming in Umfolozi, Nicholls was elected to the Union Parliament for the Zululand constituency in 1920.
He was Administrator of Natal from 1942 to 1944, High Commissioner for the Union of South Africa in London from 1944 to 1947, head of the South African delegation to the preparatory conference and Assembly of the United Nations in London in 1946, then a delegate to the UN Assembly, New York.