Gleann Cholm Cille (anglicized as Glencolmcille or Glencolumbkille) is a coastal district in the southwest Gaeltacht of County Donegal, Ireland. While Gleann Cholm Cille is still an Irish-speaking community, English has been steadily replacing Irish as the main language, with only 34% of the people speaking Irish on a daily basis in 2002. Cashel (Irish: An Caiseal) is the main village in the district.