Esther Hobart Morris (August 8, 1814 – April 2, 1902) was an American judge who was the first woman justice of the peace in the United States. She began her tenure as justice in South Pass City, Wyoming, on February 14, 1870, serving a term of nearly nine months. The Sweetwater County Board of County Commissioners appointed Morris as justice of the peace after the previous justice, R. S. Barr, resigned in protest of Wyoming Territory's passage of the women's suffrage amendment in December 1869.
Popular stories and historical accounts, as well as by state and federal public monuments, point to Morris as a leader in the passage of Wyoming's suffrage amendment. However, Morris's leadership role in the legislation is disputed.