Mary Willing Clymer (1770–1852) was an American socialite in Philadelphia during the city's time as capital of the United States.

[1] Her father was a former Mayor of Philadelphia (1763-64) and a Pennsylvania Supreme Court justice (1767-1777).

Mary wed Henry Clymer on July 9, 1794[3] and the couple had eight children.

[5] Mary sat for a portrait by famed painter Gilbert Stuart in 1797.

The portrait's caption notes that she was, "one of Philadelphia's premier social figures during the era when the city was the nation's capital".