Dooncastle
Dooncastle is a townland in County Mayo, Ireland, 4 km to the east of Westport. It is in the parish of Aughagower which is in the barony of Burrishoole.
The townland is bordered to the west by the townland of Derrygorman, to the north by the townland of Sheean, to the southwest, Meneen townland, to the south, Knockroosky townland, to the east, Cushinkeel townland, and to the northeast, Doon.
In Dooncastle townland are the remnants of Doon Castle, a former stronghold of the McPhilpin clan.
The railway line between Westport [railway station (Ireland)|Westport] and Manulla Junction passes through the southern part of the townland, the N5 road through its northern part.