BALLINA, urban district, Co. Mayo, Ireland, on the river Moy, and on the Killala branch of the Great Southern railway. Pop. (1926), 4,872. In the suburb of Ardnaree is the Roman Catholic cathedral (diocese of Killala), with an east window of Munich glass, and the ruins of an Augustinian abbey (142 7) ad joining. There is a Roman Catholic diocesan college and the Protestant parish church is also in Ardnaree. A convent was erected in 1867. In trade and population Ballina is the first town in the county. The salmon-fishery and fish-curing are important branches of its trade ; and it has also breweries and flour-mills and manufactures snuff and coarse linen. In i798 Ballina was entered by the French.