White Castle lies in a field in the townland of Whitecastle, west of the town of Kinsale in County Cork in Ireland.
White Castle was built as a stronghouse, in the early 17th century by the Roches of Kinsale.
The ruin of White Castle consists of a single wall fragment of some 7 meters high. The wall is thin, leaning over and cracked and looks as if it is in danger of collapse. It has a gunloop at the lowest storey, a fireplace on the third storey and a square bartizan supported upon pyramidical corbels.
White Castle is on private farmland and can not be visited.