Mary Ann Sorden Stuart (February 12, 1828 – April 19, 1893) was an American suffragist who served as a representative of the women's suffrage movement from Delaware and attended the National Woman Suffrage Association conventions in Washington, DC.

[2] Stuart organized the first women's suffrage group in Wilmington, Delaware, in 1869.

[3] Stuart spoke in favor of women's suffrage in front of the United States Senate Judiciary Committee in 1878.

[4] She also became the Delaware representative to the National Woman Suffrage Association (NWSA).

[4] Stuart also testified to the Delaware General Assembly in 1881 on allowing women's suffrage in the state constitution.