Terblanche is a surname. Notable people with the surname include:
Claire Terblanche (born 1984), South African cricketer Daleen Terblanche (born 1969), South African cricketer De-Jay Terblanche (born 1985), South African rugby union footballer Des Terblanche (born 1965), South African golfer J. Terblanche, South African paralympic swimmer Juanita Terblanche (born 1970), South African politician Nicolene Terblanche (born 1988), South African field hockey player Pierre Terblanche (born 1956), South African motorcycle designer Romano Terblanche (born 1986), South African cricketer Stefan Terblanche (born 1975), South African rugby union player