Charlotte Duggan Boyle (August 20, 1899 – October 3, 1990), also known by her married name Charlotte Clune, was an American competition swimmer who competed at the 1920 Antwerp Olympics in the 100 meter freestyle, as part of the first Olympics in which women were allowed to compete in swimming events.

Epstein also pushed for women to be allowed to compete at longer distances, and Boyle would later win a title in national competition in the 5-mile swim.

[2][3] Boyle represented the United States at the 1920 Summer Olympics in Antwerp, Belgium, where she competed in the women's 100-meter freestyle, swimming a 1:20.4 in the semi-finals, which did not advance her to the final meet.

Her fellow swimmer at the Women's Swimming Association, Ethelda Bleibtrey, won the 100 freestyle event that year in 1:13.6, a world record at the time.

[8] After her swimming career, Boyle had a long marriage with Henry Clune, a highly recognized columnist with the Rochester Democrat and Chronicle.