​BANN, two rivers in the N. E. of Ireland—the Upper Bann, flowing into, and the Lower Bann, out of, Lough Neagh. The Upper Bann rises in the Mourne Mountains, and runs 25 miles N. N. W. through the counties of Down and Armagh. The Lower Bann, strictly the continuation of the Upper, issues from the N. W. corner of Lough Neagh, and flows 40 miles N, N. W., through Lough Beg, dividing the counties of Antrim and Londonderry. It runs past Coleraine, into the Atlantic Ocean. It has important salmon and eel fisheries.