Gavan Neil Levenson (born 18 December 1953) is a South African professional golfer. Levenson was born in Johannesburg. He represented South Africa in the 1976 Eisenhower Trophy and won several major amateur tournaments including the French and Rhodesian Open Amateur Championships in 1978. He turned professional later that year and joined the European Tour the following year, winning the Belgian Open and finishing in 29th place on the Order of Merit in his rookie season.