Holywood (Irish: Ard Mhic Nasca dt .: "The level of MacNasca") is a city in the northeast of Ireland in County Down in Northern Ireland. Holywood is located in the north of Northern Ireland's County Down on the southern shores of Belfast Lough (Belfast Bay), which is the mouth of the River Lagan. The nearest cities are Belfast (10 km southwest) and Bangor (twelve kilometers east). It belongs administratively to District Ards and North Down. The George Best Belfast City Airport is a few kilometers away. The English name of the place originally in Latin Sanctus Boscus ( "holy wood"), dates back to the Normans that this enterprise was founded before 640 Convent related to the surrounding woodland. The anglicized form appeared first documented in the 14th century as Haliwode on. The pronunciation of the name today is identical to the Hollywood. The inhabitants Holywoods was determined at Census 2001, 12,037 people; of which were Catholic and 68.6\% Protestant 23.0\%. By 1900 the city had about 3,500 inhabitants. In the Palace Barracks in Holywood, the headquarters of the Security Service ( "MI5") in Northern Ireland is.