Ramanathan Krishnan is a retired tennis player from India who was among the world's leading players in the 1950s and 1960s. He was twice a semifinalist at Wimbledon in 1960 and 1961, reaching as high as World No. 6 in Lance Tingay's amateur rankings. In 1954, he became the first Asian player to win the boy's singles title at Wimbledon, beating Ashley Cooper in the final.