Belleek Castle, originally known as Belleek Manor, is a 19th-century manor house in Ballina, County Mayo in Ireland. Now operated as a hotel, the house was built between 1825 and 1831 in a neo-Gothic style. The 10-room hotel has a museum in its basement containing what is reputed to be Grace O'Malley's bed. It also has a collection of fossils and armoury and a bar named for the Spanish Armada in Ireland. Several structures on the site, including the manor house itself, a nearby mausoleum and 19th-century entrance archway, are included in the Record of Protected Structures maintained by Mayo County Council.