Threecastles Castle
| Threecastles Castle | |
|---|---|
| Native name Caisleán Bhaile na dTrí Chaisleán (Irish) | |
| Location | Blessington, County Wicklow, Ireland |
| Coordinates | 53°10′54″N 6°29′15″W / 53.18173°N 6.48738°W |
| Built | 1500s |
| Official name | Threecastles Castle |
| Reference no. | 491 |
Threecastles Castle is a three-storey tower house situated near Blessington, County Wicklow, Ireland. It is protected as a national monument.