Baron Waterpark of Waterpark in the County of Cork, is a title in the Peerage of Ireland. It was created in 1792 for Sarah, Lady Cavendish, in honour of her husband, Sir Henry Cavendish, 2nd Baronet. Sir Henry Cavendish was a politician who represented Lismore and Killybegs in the Irish House of Commons and served as Vice-Treasurer of Ireland and as Receiver-General of Ireland. From 1768 to 1774 he sat in the British House of Commons for Lostwithiel. Cavendish and Lady Waterpark were both succeeded by their son Richard, the second Baron and third Baronet. His eldest son, the third Baron, represented Knaresborough, Derbyshire South and Lichfield in the House of Commons as a Liberal and served as a Lord-in-waiting (government whip) under Lord John Russell, Lord Aberdeen and Lord Palmerston.