John M. "Cockeye" Dunn (d. July 7, 1949) was a New York mobster involved in the numbers racket and labor racketeering as a top enforcer for brother-in-law Edward McGrath. He was later convicted with Andrew Sheridan of the 1946 murder of Greenwich Village stevedore Andy Hintz and executed by the elecrtic chair on July 7, 1949.