Johanna Mary Sheehy Skeffington was a suffragette and Irish nationalist. Along with her husband Francis Sheehy Skeffington, Margaret Cousins and James Cousins, she founded the Irish Women's Franchise League in 1908 with the aim of obtaining women's voting rights. She was later a founding member of the Irish Women Workers' Union. Her son, Owen Sheehy-Skeffington became a politician and Irish senator.