Thomas Butler, 6th Earl of Ossory, Irish admiral and politician, Lord Lieutenant of Ireland (b. 1634)
Vice-Admiral Thomas Butler, 6th Earl of Ossory, KG, PC, PC (Ire) (1634–1680) was an Irish soldier and politician. He was the eldest son of James Butler, 1st Duke of Ormond but predeceased his father and therefore never became duke.