An Clochán Liath, known in English as Dungloe or Dunglow and formerly as Cloghanlea, is a small town on the west coast of County Donegal, Ireland. It is the main town in The Rosses district and the largest in the Donegal Gaeltacht. It developed as a town in the mid 18th century, and now serves as the administrative and retail centre for the west of County Donegal, and in particular The Rosses, with the only mainland secondary school for the area.