Lucy Foster Madison (April 8, 1865 – March 16, 1932) was an American novelist and teacher.
Born Lucy Foster in Kirksville, Missouri, the daughter of George W. Foster and Almira Parker, she graduated from high school in Louisiana, Missouri. Her father, mother, and brother all died while she was a teen, leaving her to care for her two younger sisters. She became a school teacher in Louisiana, Missouri, then in Kansas City, Missouri. In 1890 she was married to Winfield Scott Madison.