Fanad is a peninsula that lies between Lough Swilly and Mulroy Bay on the north coast of County Donegal, Ireland. The origin of the name Fanad derives from the Irish language word Fána for "sloping ground". It is also referred to as Fannet or Fannett in older records. There are an estimated 700 people living in Fanad and 30% Irish speakers.

Lough Swilly in Ireland is a glacial fjord or sea inlet lying between the western side of the Inishowen Peninsula and the Fanad Peninsula, in County Donegal. Along with Carlingford Lough and Killary Harbour it is one of three glacial fjords in Ireland.