Christo Van Rensburg (born October 23, 1962 in Uitenhage, South Africa) is a former tennis player from South Africa.
Van Rensburg turned professional in 1983. He won his first tour doubles title later that year at Cleveland.
Van Rensburg won 20 top-level doubles titles during his career, including one Grand Slam men's doubles title at the Australian Open in 1985 (partnering Paul Annacone).
Van Rensburg also won two top-level singles titles at Orlando in 1987, and at Johannesburg in 1989.
Van Rensburg's career high rankings were World No. 19 in singles (in 1988) and World No. 5 in doubles (in 1987). His career prize-money totalled US$1,928,431. He retired from the professional tour in 1995.