Sarah Moore Grimke (November 26, 1792–December 23, 1873) was an American abolitionist and women's rights activist who was outspoken against slavery and in favor of women's suffrage. She and her sister Angelina Grimké were influential orators and writers in the abolitionist movement and for women's suffrage, and they are credited with helping to change public discourse about these issues. Grimké's work helped to pave the way for the first women's rights convention, held in Seneca Falls, New York in 1848.