John Crosbie, 2nd Earl of Glandore PC, FRS (25 May 1753 – 23 October 1815), styled Viscount Crosbie between 1777 and 1781, was an Irish politician. Crosbie was the only surviving son of William Crosbie, 1st Earl of Glandore, by his first wife Lady Theodosia, daughter of John Bligh, 1st Earl of Darnley. He was educated at Trinity College, Cambridge. In 1775 he was returned to the Irish House of Commons for Athboy. The following year he was elected for both Tralee and Ardfert. He chose to sit for the latter, and held the seat until 1781, when he succeeded his father in the earldom and entered the Irish House of Lords. He was sworn of the Irish Privy Council in 1785. In 1789, he was appointed Joint Master of the Rolls in Ireland alongside the Earl of Carysfort. They both held the post until 1