Marion Fairfax (October 24, 1875 – October 2, 1970) was an American screenwriter and playwright. Born as Marion Neiswanger in Richmond, Virginia, After she graduated from Chicago’s South Division High School, she enrolled in Emerson College in Boston, Massachusetts. She was married to actor Tully Marshall for forty-three years. Fairfax worked as a company director, director, editor, editorial director, playwright, producer, screenwriter and theatre actress.