for 'fortified town', Spanish
) is a town of the Bidasoa-Txingudi
region in the province of Guipuscoa
Gipuzkoa) in the Basque
Autonomous Community, Spain
. Nowadays it is widely accepted by the historic researcher community that Irun
is the ancient Basque
Roman town of Oiasso
on account of the vestiges (port, factory, etc.) disclosed lately in the historic nucleus of Irun
, while the name itself may have applied to the whole surrounding area.
One of the biggest towns in Guipuscoa, its border town situation (it is located on the border between Spain and France, across the Bidasoa river from Hendaye), has made Irun into a commercial and logistic centre, with important railway infrastructure, where the SNCF rails meet the 1,668 mm (5 ft 5 in) broad gauge Renfe ones. Currently Irun features a fair ground provided with modern exhibition and telecommunication facilities just at some 100 metres away from the actual borderline at the Santiago Bridge (river Bidasoa).
Irun is part of the conurbation of Txingudi bay with Hondarribia and Hendaye, the town being also involved in the Eurocité Basque Bayonne-San Sebastián.
One of its main festivals is the Alarde, a parade recreating an episode of the Peninsula War.