The U.S. Senior Women's Open is one of fourteen U.S. national golf championships organized by the United States Golf Association. The newest USGA championship, it is open to women whose 50th birthday falls on or before the first day of competition and hold a handicap index not exceeding 7.4. It is part of the Legends of the LPGA Tour. The inaugural championship was held in 2018 at the Chicago Golf Club in Wheaton, Illinois.