Europe-Places.com has listed approx 9 castles in Co. Dublin. Some of the Top rated castles in Co. Dublin are- Malahide Castle & Gardens, Malahide Castle & Gardens, Ardgillian Castle Skerrie's view, Dalkey Castle & Heritage Centre, Castleknock Castle, Castleknock Castle, Castleknock Castle, Dalkey Castle & Heritage Centre & Ardgillian Castle Skerrie's view.