Nicklaus, NIHK luhs, Jack (1940-...), an American golfer, ranks among the greatest players in the history of the sport. Nicklaus was the first player to win all four of golf's major titles at least twice. He won the British Open in 1966, 1970, and 1978; the U.S. Open in 1962, 1967, 1972, and 1980; the Masters Tournament in 1963, 1965, 1966, 1972, 1975, and 1986; and the Professional Golfers' Association (PGA) Championship in 1963, 1971, 1973, 1975, and 1980. He also won the United States Amateur tournament in 1959 and 1961 before turning professional.