Donal Coonan (born 1981), British internet personality and television presenter
Edward Cummiskey (died 1976), New York mobster who served as a mentor to Jimmy Coonan, leader of the Westies
From 2007 to 2008, Coonan attended Philippe Gaulier's L'École Philippe Gaulier in Paris.
In October 2005, Coonan released a plan for a staged rollout of Digital Audio Broadcasting using the "Eureka 147" technology, starting in metropolitan areas.