Dunoon, small burgh (town), Argyll and Bute council area, historic county of Argyllshire, western Scotland, on the northwestern shore of the Firth of Clyde. It grew as a seaside resort (especially for Glaswegians) from the early 19th century to the latter part of the 20th century, when its prominence as a tourist destination declined. Since then its residents have been a mix of local workers, retirees, and commuters. Dunoon’s marine frontage includes former hotels and villas (many of which have been converted to flats) along the esplanade, which extends for 2 miles (3 km) to the entrance of Holy Loch at Hunter’s Quay. Holy Loch was the site of a forward U.S. Navy nuclear submarine base from 1960 to 1992. Hunter’s Quay was the site of the headquarters of the Royal Clyde Yacht Club, which merged with the older Royal Northern Yacht Club in 1978 to become the Royal Northern & Clyde Yacht Club, with headquarters in Rhu near Helensburgh. Pop. (2001) 8,251; (2011) 8,454.