Holywoo (from the Latin: Sanctus Boscus meaning "Holy wood"; also Ard Mhic Nasca meaning "the height of the son of Nasca" in Irish) is a town in County Down, Northern Ireland, on the shores of Belfast Lough, between Belfast and Bangor. It had a population of 12,037 according to the 2001 Census. Holywood Exchange and Belfast City Airport are nearby. The town hosts an annual Jazz and Blues Festival.