William Cammack Campbell (May 5, 1923 – August 30, 2013), often known as Bill Campbell or William C. Campbell, was an American amateur golfer and two-time President of the United States Golf Association (USGA). He was inducted to the World Golf Hall of Fame in 1990.

Campbell was born in Huntington, West Virginia. He served in the U.S. Army during World War II, and graduated from Princeton University in 1947 with a degree in history.

In his amateur golfing career, Campbell played in 37 U.S. Amateurs, including 33 consecutively from 1941–77, and won the event in 1964. He played on eight Walker Cup teams from 1951 to 1975, captaining the 1955 team, and finished with an overall record of 11-4-3 (7-0-1 in singles matches). He was runner-up in the 1954 British Amateur. He was three times runner-up in the Canadian Amateur Championship, in 1952, 1954, and 1965. He won three West Virginia Opens, four North and South Amateurs, and fifteen West Virginia Amateur titles. He won the U.S. Senior Amateur in 1979 and 1980 (medalist in 1979, 1980, and 1984), and finished 2nd overall in the 1980 U.S. Senior Open.

Campbell served on the Executive Committee of the USGA from 1962–1965, and again from 1977-1984. He was the treasurer in 1978-1979, vice-president in 1980-1981, then served as president in 1982 and 1983. In 1987, he was named Captain of The Royal and Ancient Golf Club of St Andrews, just the third American to hold that post, becoming the first person to head both of golf's main governing bodies.

In 1956, Campbell was awarded the Bob Jones Award, the USGA's highest honor. He also received the 1991 Old Tom Morris Award from the Golf Course Superintendents Association of America, GCSAA's highest honor. He was inducted into the West Virginia Golf Hall of Fame in 2009 with Sam Snead.

Campbell was also the stepfather of Academy Award-nominated actor Brad Dourif.

Tournament wins (32)

• 1941 Eastern Interscholastic Champion
• 1943 Eastern Intercollegiate Champion
• 1946 Eastern Intercollegiate Champion
• 1948 Tam O'Shanter World Amateur
• 1949 Tam O'Shanter World Amateur, West Virginia Amateur
• 1950 West Virginia Open, North and South Amateur, West Virginia Amateur
• 1951 West Virginia Amateur
• 1953 West Virginia Open, North and South Amateur
• 1955 West Virginia Open, West Virginia Amateur
• 1956 Mexican Amateur
• 1957 North and South Amateur, West Virginia Amateur
• 1959 West Virginia Amateur
• 1962 West Virginia Amateur
• 1964 U.S. Amateur
• 1965 West Virginia Amateur
• 1967 Ontario Amateur, North and South Amateur, West Virginia Amateur
• 1968 West Virginia Amateur
• 1970 West Virginia Amateur
• 1972 West Virginia Amateur
• 1973 West Virginia Amateur
• 1974 West Virginia Amateur
• 1975 West Virginia Amateur
• 1979 U.S. Senior Amateur
• 1980 U.S. Senior Amateur