KILLEEN, or NEW-ARRAN, a village, in the parish of DROMACOO, in the barony of DUNKELLIN, county of GALWAY, and province of CONNAUGHT, 4 miles (N. E.) from Kinvarra, on the road from that place to Galway; containing, in 1831, 360, and in 1836, 600 inhabitants. It is on the bay of Galway, and has a pier.