BALLYHACK, a village, in the parish of ST-JAMES, barony of SHELBURNE, county of WEXFORD, and province of LEINSTER, 6½ miles (N. W.) from Fethard; containing 258 inhabitants. This place is situated at the outlet of the rivers Barrow, Suir, and Nore, in Waterford harbour, and is chiefly supported by the shipping that anchor in the estuary, where, both at the quay and in the anchorage grounds, large vessels may ride securely in all states of the weather: the decrease in the amount of its population, within the last seven years, is attributable to the growth of Arthurstown, in the same parish. It is a fishing station; and a small trade is carried on in corn and pigs for the Waterford market. Fairs are held on the Thursday after Trinity Sunday, March 25th, June 17th, 24th, and 29th, July 26th, Aug. 24th, and Sept. 29th, Here are the ruins of a castle; and there was anciently a commandery, which belonged to the grand priory of Kilmainham, and was subordinate to that of Kilcloghan. See JAMES (ST.).