Masahiro "Massy" Kuramoto (倉本昌弘, Kuramoto Masahiko?, born 9 September 1955) is a Japanese professional golfer.
Kuramoto was born in Hiroshima. He turned professional in 1981. He has won 30 tournaments on the Japan Golf Tour, ranking fifth on the career list. He ranks sixth on the career money list with earnings of just under 1 billion ¥.
Kuramoto played 65 times on the PGA Tour from 1978 to 1997 (including 21 times in 1993). His best finish was a T-4 at the 1982 British Open (also his best finish in a major championship).