BALBRIGGAN, town, Co. Dublin, Ireland, 214m. N.N.E. of Dublin by the Great Northern railway. Pop. (1926) 2,278. The harbour affords a good refuge from the east or south-east gales. The town has considerable manufactures of cottons and hosiery, "Balbriggan hose" being well known. The industry was founded by Baron Hamilton in 1761. There is some coast trade in grain, etc., and also sea-fishery. Balbriggan is much frequented as a watering-place in summer.