Tory Island, or simply Tory, is an island 14.5 kilometres off the north-west coast of County Donegal, Ireland. It is officially known by its Irish name Toraigh, which, although spelled thus, is pronounced the same as the English version. It is the most remote inhabited island of Ireland. The name toraigh means "place of steep rocky heights".

County Donegal is a county of Ireland in the province of Ulster and in the Northern and Western Region. It is named after the town of Donegal in the south of the county. It has also been known as County Tyrconnell or Tirconaill, after the historic territory. Donegal County Council is the local council and Lifford is the county town.