Leonor Kretzer Sullivan (August 21, 1902 in St. Louis, Missouri – September 1, 1988 in St. Louis) was a member of the United States House of Representatives from Missouri. She was a Democrat and the first woman in Congress from Missouri.Sullivan attended Washington University in St. Louis and was a teacher and director at St. Louis Comptometer school. She was married to John B. Sullivan, who served four terms in Congress, and she served as his administrative aide.