The N15 road is a National Primary Route in the Republic of Ireland, running through County Donegal and the northwest of Ireland to connect Sligo to Stranorlar, Lifford and onwards to Strabane and Derry. A typical Irish road sign in Mullingar, County Westmeath Ireland, both north and south of the border, has an extensive network of roads. ... For other uses, see Donegal (disambiguation) Donegal (Irish: Dún na nGall) is a county in the northwest of Ireland. ... Sligo (Sligeach in Irish) is the county town of County Sligo in the Republic of Ireland. ... Stranorlar is a small town which forms part of the Twin Towns together with Ballybofey. ... Lifford (Leifear in Irish) is the county town of Donegal in the Republic of Ireland and the seat of Donegal County Council. ... Strabane (Irish Gaelic, an Srath Bán, which translates as The White Strand) is a town in the west of County Tyrone in Northern Ireland on the border with County Donegal. ... Derry or Londonderry (in Irish, Doire or Doire Cholm Chille), often called the Maiden City, is a city in Northern Ireland. ...

The route leaves Sligo Town to the north, skirting the coastline before heading northeast to Bundoran. From here, the route passes through Ballyshannon, where the N3 road meets it, and on northwards to bypass Donegal Town, with the N56 branching off here. The road continues northeast through the mountains to reach Stranorlar. The N13 road leaves the N15 to head north to Letterkenny, while the N15 continues east to Lifford, where it meets the N14 road. The route continues across the border as the A5 road to Strabane and Derry. Bundoran (Bun Dobhrain in Irish) is a very popular tourist town on the coast of County Donegal, Ireland. ... Ballyshannon (Béal Atha Seanaidh in Irish) is a town in County Donegal, Ireland. ... The N3 road is a National Primary Route in the Republic of Ireland, running from Dublin to Cavan Town and the border area of Ireland. ... Donegal (Dún na nGall in Irish) is a town in County Donegal, Ireland. ... Stranorlar is a small town which forms part of the Twin Towns together with Ballybofey. ... The N13 road is a National Primary Route in Ireland, running in County Donegal from Stranorlar to the border near Derry. ... Letterkenny (Leitir Ceanainn in Irish) is the largest town in County Donegal in the Republic of Ireland, located 35 miles north of Donegal Town and 20 miles west of Derry in Northern Ireland. ... Lifford (Leifear in Irish) is the county town of Donegal in the Republic of Ireland and the seat of Donegal County Council. ... The N14 road is a National Primary Route in Ireland, connecting the towns of Letterkenny and Lifford in County Donegal, and running to the border with Northern Ireland to connect with Strabane. ... Strabane (Irish Gaelic, an Srath Bán, which translates as The White Strand) is a town in the west of County Tyrone in Northern Ireland on the border with County Donegal. ... Derry or Londonderry (in Irish, Doire or Doire Cholm Chille), often called the Maiden City, is a city in Northern Ireland. ...

See also: Roads in Ireland