William Hamilton and Company was a British shipyard in Port Glasgow, Scotland. The company was bought by Lithgow Ltd., which later became Scott Lithgow and was nationalised as part of British Shipbuilders in 1977.

The Bangor-class minesweepers were a class of warships operated by the Royal Navy (RN), Royal Canadian Navy (RCN), Imperial Japanese Navy (IJN), and Royal Indian Navy (RIN) during the Second World War.