Charles Robberts Swart, nicknamed "Blackie", was a South African politician who served as the last governor-general of the Union of South Africa from 1959 to 1961 and the first state president of the Republic of South Africa from 1961 to 1967.

The governor-general of the Union of South Africa was the highest state official in the Union of South Africa between 31 May 1910 and 31 May 1961. The Union of South Africa was founded as a self-governing Dominion of the British Empire in 1910 and the office of governor-general was established as the representative of the monarch. Fifty-one years later the country declared itself a republic and the historic link with the British monarchy was broken. The office of governor-general was abolished.