Rossnowlagh or Rosnowlagh (Irish: Ros Neamhlach, meaning "heavenly headland") is a seaside village in south County Donegal, Ireland. It is about 8.5 km north of Ballyshannon and 16.0 km southwest of Donegal Town. The area's 3 km long beach is popular with families and is frequented by walkers, surfers, wind-surfers, kite-surfers and swimmers.