Viljoen is an Afrikaans surname, derived from the French Villion. It was brought to South Africa in 1671 by French Huguenots who subsequently intermarried with the local Dutch population.
The progenitors of the extended Viljoen clan are François Villion (born Clermont, Île-de-France) and Cornelia Campenaar (born Middelburg, Zeeland). Married in the Cape of Good Hope, they later farmed for a living near Stellenbosch. Some of their descendants include:
Annari Viljoen (born 1987), South African Olympic badminton playerBarend Viljoen (born 1908), South African military commanderBen Viljoen (born 1869), South African military commanderChristi Viljoen (born 1987), Namibian cricketerColin Viljoen (born 1948), South African born former English international footballerDirk Viljoen (born 1977), former cricketerConstand Viljoen (born 1933), former South African military commander and politicianGerrit Viljoen (born 1926), former South African government ministerHardus Viljoen (born 1989), South African cricketerIrene van Dyk, née Viljoen (born 1972), South African and New Zealand international netballerJoggie Viljoen (born 1976), South African rugby union footballerJohannes Viljoen (1904–1976), South African Olympic track and field athleteJurie Viljoen (born 1942), Namibian politicianKen Viljoen (1910–1974), South African cricketer and cricket managerLettie Viljoen, pseudonym of the South African author Ingrid WinterbachMarais Viljoen (1915–2007), ceremonial State President of South AfricaNik Viljoen, New Zealand international football (soccer) playerSunette Viljoen (born 1983), South African javelin throwerWillem Viljoen (born 1987), South African Olympic badminton player, brother of Annari