Doneyloop, sometimes spelt Dunnyloop or Dunnaloob, is a townland and hamlet near Castlefin in the Finn Valley of east County Donegal in Ireland. It is located on the Urney Road in the civil parish of Urney. The village of Clady, County Tyrone, in Northern Ireland, is nearby. Dunnaloob townland is in the electoral division of Urney West.