Baron Castle Coote, in the County of Roscommon, was a title in the Peerage of Ireland. It was created in 1800 for Charles Coote, 7th Earl of Mountrath, with remainder to his kinsman Charles Coote. The earldom of Mountrath became extinct on his death in 1802 (see Coote baronets for earlier history of the Coote family) while he was succeeded in the barony according to the special remainder by the aforementioned Charles Coote, the second Baron, who had previously represented Queen's County and Maryborough in the Irish House of Commons. The second Baron was the son of the Very Reverend Charles Coote, Dean of Kilfenora, great-grandson of Chidley Coote, younger son of Sir Charles Coote, 1st Baronet and brother of Charles Coote, 1st Earl of Mountrath. He was succeeded by his only surviving son, E