Mrs. Charles Frances Adams Cup

The Mrs. Charles Frances Adams Cup, or Adams Cup for short, was the competition for the United States Women's Sailing Championship.

In a sport with hundreds of different classes of boats and a national champion for each, the point of the Adams Cup was to determine an overall champion for the sport of women's sailing in the United States. Run by the U.S. Sailing Association, eliminations were held throughout the country, and the finals were raced in a different type of boat each year to eliminate any advantage a sailor from any particular class might otherwise have. Competitors sailed boats provided by the host club, and teams were required to race each boat at the event once so that nobody would have an advantage in terms of equipment, similar to high school and collegiate sailing.

As with national championships in other sports, the top three finishers received gold, silver and bronze medals, respectively. The winner likewise held the Mrs. Charles Frances Adams Cup itself until the following year's champion was crowned.

The Adams Cup was first held in 1924 and was raced annually until 2011. Now retired, the Mrs. Charles Frances Adams Trophy is on display in the Reading Room of the Tom Morris Library at the National Sailing Hall of Fame.

In 2013 the Clifford Day Mallory Cup, which had previously been the United States Men's Sailing Championship, became the United States Adult Sailing Championship, open to both men and women.