Doris Isaac Grumbach (born July 12, 1918) is an American novelist, memoirist, biographer, literary critic, and essayist. In 1979, Grumbach published the novel "Chamber Music", which was critically well received and helped establish her reputation as a novelist. In six years, three more books followed: "The Missing Person" (1981), "The Ladies" (1984), and "The Magician's Girl" (1987).