Donald "Nipper" O'Hearn (February 14, 1928 – January 25, 2015) was a Canadian professional ice hockey goaltender who played over 200 games combined in the Pacific Coast Hockey League, United States Hockey League, American Hockey League, Maritime Major Hockey League, Quebec Hockey League, International Hockey League, and Eastern Hockey League. He was born in Halifax, Nova Scotia but grew up in St. Catharines, Ontario. He died after a long illness in a hospital at St. Catharines in 2015.