Donald Ring Mellett (September 26, 1891 – July 16, 1926) was an American newspaper editor, who was assassinated after confronting local organized crime in his newspaper. Mellett was born in Elwood, Indiana as the child of a newspaper editor. He followed with the family tradition by becoming a journalist, as did several of his siblings. He studied at Indiana University, where he became the editor of the school's newspaper, The Daily Student (now the Indiana Daily Student).