The United States Amateur Championship, commonly known as the U.S. Amateur, is the leading annual golf tournament in the United States for amateur golfers. It is organized by the United States Golf Association and is currently held each August over a 7-day period.

The United States Golf Association (USGA) is the United States national association of golf courses, clubs and facilities and the governing body of golf for the U.S. and Mexico. Together with The R&A, the USGA produces and interprets the rules of golf. The USGA also provides a national handicap system for golfers, conducts 14 national championships, including the U.S. Open, U.S. Women's Open and U.S. Senior Open, and tests golf equipment for conformity with regulations. The USGA and the USGA Museum are located in Liberty Corner, New Jersey.