Marie C. Cox (1920-2005) was a Comanche activist who worked on legislation for Native American children. She received many accolades for her efforts including the 1974 Indian Leadership Award from the Bureau of Indian Affairs and state recognition that same year as the Outstanding Citizen of Oklahoma from Governor David Hall. She was named as an Outstanding Indian Woman of 1977 by the North American Indian Women's Association, and served on the National Advisory Council on Indian Education from 1983 to 1990. In 1993, she was inducted into the Oklahoma Women's Hall of Fame for her work with foster children and the founding of the North American Indian Women’s Association.