History: The surname Theunissen is of Dutch origin, derived from the given name Theunis, a diminutive of Antonius, meaning “son of Theunis.” It was introduced to South Africa by Dutch settlers and has since become common among Afrikaner communities. The name is prevalent in South Africa, reflecting the Dutch heritage of many early settlers. Notable individuals with this surname include:

  • Jan Theunissen: South African cricketer known for his contributions to the sport.