Rheta Childe Dorr (1868–1948) was an American author, journalist (muckraker) and social worker.
She was born at Omaha, Nebraska in 1868. After studying for two years at the University of Nebraska she became editor of the woman's department of the New York Evening Post (1902–1906), and a member of the staff of Hampton's Magazine (1908–1911). She made special investigations as a worker in factories, mills, and department stores in order to study the labor conditions for women and children. She was war correspondent for a syndicate of 21 newspapers during 1917–1918, and became foreign correspondent with headquarters at Prague in 1920. She died on August 8, 1948.