William Crosbie, 1st Earl of Glandore (May 1716 – 11 April 1781), known as The Lord Brandon between 1762 and 1771 and as The Viscount Crosbie between 1771 and 1776, was an Irish politician.
Crosbie was the son of Maurice Crosbie, 1st Baron Brandon, by Lady Elizabeth Anne, daughter of Thomas FitzMaurice, 1st Earl of Kerry.[1] He was educated at Trinity College Dublin.[2]
He was returned to the Irish House of Commons for Ardfert in 1735, a seat he held until 1762, when he succeeded his father in the barony and entered the Irish House of Lords.[3] In 1770 he was appointed Custos Rotulorum of Kerry.[4] He was created Viscount Crosbie, of Ardfert in the County of Kerry, in 1771,[5] and was further honoured when he was made Earl of Glandore, in the County of Cork, in 1776.[6]