Banagh (Irish: Báinigh[l 1]) is a historic barony in County Donegal in Ireland.

[3] Banagh is bordered by the baronies of Boylagh to the north, Raphoe South to the northeast, and Tirhugh to the east.

[4] Donegal Bay is to the south, and the open Atlantic Ocean to the west.

[4] The barony contains the following civil parishes:[1] Settlements in the barony include Ardara,[l 2] Carrick,[l 2] Donegal,[l 2] Dunkineely,[l 2] Frosses,[l 3] Glencolumbkille,[l 2] Inver,[l 3] Killybegs,[l 2] Kilcar,[l 2] Mountcharles,[l 2] and Teelin.

[l 3] Other features in the barony include Lough Eske,[l 4] Slieve League,[l 5] and the Bluestack Mountains.