Claud Hamilton of Cochno was a Scottish landowner and Captain of Dumbarton Castle.
He was a son of Andrew Hamilton of Cochno, captain of Dumbarton Castle and Margaret Noble.
The family were supporters of Mary, Queen of Scots, and in 1568 Regent Moray and Lord Sempill took possession of the House of Cochno.
John Menteith in Lettir, whose father rented his lands from David Haldane, Tutor of Gleneagles, with other neighbours, had stolen oxen grazing on the Muir of Cochno which belonged to Claud Hamilton and his tenants.
[2] Alexander Seton, 1st Earl of Dunfermline wrote in 1621 that he knew "Claud of the Cochno", father of the Minister of Paisley, and he was a very honest man.