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Irún(ēro͞on`), town (1990 pop. 55,200), Guipúzcoa prov., N Spain, in the Basque region near the French border, on the Bidassoa River near the Bay of Biscay. It is a commercial and manufacturing center producing paper and leather goods. Lead and iron mines are nearby. Irún was staunchly defended by the Loyalists in the civil war of 1936–1939.
a city in northern Spain, in the Basque province of Guipúzcoa on the Bidassoa River. Population, 29,800 (1960). Irún is a railroad customs station at the Franco-Spanish border. Transport and electrical machinery and cement are produced in the city.