Ballinskelligs Castle is a castle located near Ballinskelligs on the Iveragh Peninsula in County Kerry, Ireland.[1] The castle is situated on the western shore of Ballinskelligs Bay, on a narrow promontory which is subject to heavy erosion.[2] The castle was constructed by the MacCarthy Mórs in the 16th century to protect the bay from pirates, and possibly in order to charge a tariff on incoming trade vessels.[1]