Stranorlar is a town, townland and civil parish in the Finn Valley of County Donegal, in Ireland. Stranorlar and Ballybofey form the Twin Towns.

The River Finn is a river in the west of Ulster, the northern province in Ireland. The river mainly flows through County Donegal, part of the Republic of Ireland, while a short stretch of the river also partially flows through County Tyrone, part of Northern Ireland. From Lough Finn, the river goes to Ballybofey and Stranorlar before joining the River Mourne at Lifford and Strabane.