Johann Friedrich Kupferburger (10 February 1933 – December 1988) was a South African tennis player who was active in the 1950s.

[1][2] Kupferburger won the 1951 Wimbledon Boys' Singles title by beating the Egyptian player, Kamel Moubarek in the final.

His first title was in August 1955 when he won the Ontario Championships, beating Gardnar Mulloy in the final.

The next week he was successful again when he won the Cleveland House Invitation by defeating Gilbert Bogley in the final.

His best result at a Grand Slam events was reaching the third round at the 1955 US Open, before losing to Art Larsen.