Badenhorst is an Afrikaans surname. Notable people with the surname include:
Anna Lemmer Badenhorst Rudolph (1924–1995), South African author and composer Beverley Badenhorst, South African politician Brummer Badenhorst (born 1990), South African rugby union player Daantjie Badenhorst (born 1967), South African quiz show contestant and writer Felix Badenhorst (born 1989), Swazi footballer Gerrit Badenhorst (born 1962), South African powerlifter and strongman competitor Henry Badenhorst, British businessman Joany Badenhorst (born 1994), South African-born Australian Paralympian Pieter Badenhorst, South African Paralympic athlete Roald Badenhorst (born 1991), South African-born New Zealand cricketer Skipper Badenhorst (born 1978), South African rugby union player Witkop Badenhorst (1940–2012), South African Army general