Kiltartan Castle is a tower house and National Monument located in County Galway, Ireland.
Kiltartan Castle lies in the civil parish of Kiltartan. It is north of Gort, on the west bank of the Gort River.
The tower house was built in the 1280s, during the reign of Edward I as Lord of Ireland.
It was ruined in the 1650s during the Cromwellian conquest.
Two storeys partially remain, with a three-storey spiral stairway and numerous arrowslits.