Sir Claud Hamilton (died 1640) was constable of the Fort of Toome in County Antrim, Ulster, Ireland.
His father's family probably was a cadet branch of the House of Hamilton founded by Walter fitz Gilbert of Cadzow.
[b] His wife's father was an undertaker in the Plantation of Ulster and settled at Badoney, Barony Strabane, County Tyrone, which he renamed Ellieston.
[5] Claud and Anne had four children, his son Robert who died young and three daughters whose names are not known.
According to James Balfour Paul, Hamilton died on 5 June 1640 at Roscrea, County Tipperary and was buried in the monastery.