O'Donnell is a ghost town and former industrial area inside the city of Greater Sudbury, Ontario, Canada, which today is located on property owned by Vale Limited. It was located along the Algoma Eastern Railway line between two mine sites, Crean Hill and Gertrude. It functioned as a brief offshoot of the nearest major settlement along the line, the Inco company town of Copper Cliff, which today is a suburb of Sudbury.