Baron Radstock, of Castletown in the Queen's County,[1] was a title in the Peerage of Ireland.
It was created in 1800 for Vice-Admiral the Honourable William Waldegrave.
On his death, the title passed to his son, the third Baron.
Two of his sons, the fourth and fifth Barons, both succeeded in the title.
Despite its territorial designation and the fact that it was in the Peerage of Ireland, the title referred to Radstock in Somerset.