N5

The N5 road is a national primary road in Ireland, connecting Longford town with Westport. It is the main access route from Dublin (via the M4/N4) to most of County Mayo, including the county's largest towns, Castlebar, Ballina (via the N26), and Westport.

Almost all of the route has been improved during the 2000s with the construction of bypasses and extensive resurfacing works on stretches not bypassed. From Longford, the N5 passes through Strokestown and Ballaghaderreen, before crossing the N17 at an interchange near Ireland West Airport Knock. The N26 to Ballina leaves the N5 just outside Swinford. The road is 134 kilometres (83 mi) long.