Harriot Eaton Blatch (née Stanton; January 20, 1856 – November 20, 1940) was an American writer and suffragist.

Their first daughter, Nora Stanton Blatch Barney, continued the family tradition as a suffragist, was the first U.S. woman to earn a degree in civil engineering, and was briefly married to Lee de Forest, before entering a longer second marriage.

In 1881, Harriot Stanton worked with her mother, Matilda Joslyn Gage, and Susan B. Anthony on the History of Woman Suffrage.

On returning to the United States in 1902, Blatch sought to reinvigorate the American women's suffrage movement, which had stagnated.

The core membership of the league comprised 20,000 factory, laundry, and garment workers from the Lower East Side of New York City.

She could organize militant street protests while still working expertly in backroom politics to neutralize the opposition of Tammany Hall politicians who feared the women would vote for prohibition.

[citation needed] In 1939, Blatch suffered a fractured hip and moved to a nursing home in Greenwich, Connecticut.