Prior to the establishment of a Republic the ceremonial heads of government in die old Union of South Africa were Governors-General.
Charles Robberts (Blackie) Swart 31 May 1961 – 31 May 1967
Theophilus Ebenhaezer (Eben) Dönges (Elected, but never inaugurated due to ill-health) 31 May 1967 – 1 June 1967
Jozua Francois Naude (acting) 1 June 1967 – 10 April 1968
Jacobus Johannes (Jim) Fouché 10 April 1968 – 9 April 1975
Johannes de Klerk 9 – 19 April 1975
Nicolaas Johannes (Nic) Diederichs 19 April 1975 – 21 August 1978 (Died in office)
Marais Viljoen (acting) 21 August – 10 October 1978
Balthazar Johannes (John) Vorster 10 October 1978 – 4 June 1979 (Resigned)
Marais Viljoen 4 – 19 June 1979 (Acting)
Marais Viljoen 20 June 1979 – 2 September 1984
Executive Presidents of South Africa:
Pieter Willem (PW) Botha 3 September 1984 – 15 August 1989 (Resigned)
Chris Heunis 19 January – 15 March 1989
Frederik Willem (FW) de Klerk 15 August 1989 – 9 May 1994
Post-Apartheid Presidents of South Africa:
Names of the Presidents with executive powers who were elected in the new democracy in South Africa after 1994. This was accomplished after the abolishment of apartheid in 1992 by the then ruling National Party and the unbanning of “Black” political movements such as the ANC, PAC, SACP and others. Since the 1994, the rulling African National Congress has ruled with roughly a 2/3 majority vote.
Nelson Mandela 10 May 1994 – 16 June 1999
Thabo Mvuyelwa Mbeki 16 June 1999 – 24 September 2008 (Recalled from office)
Petrus Kgalema Mothlanthe 25 September 2008 – 9 May 2009
Jacob Gedleyihlekisa Zuma 9 May 2008 –