Field Marshal George Hamilton, 1st Earl of Orkney KT (9 February 1666 – 29 January 1737) was a British soldier and Scottish nobleman and the first British Army officer to be promoted to the rank of Field Marshal. The son of the Duke and Duchess of Hamilton, he fought for William of Orange in Ireland and the Low Countries. He was raised to the peerage in 1695, and continued to serve with distinction in the War of the Spanish Succession. After these campaigns he retired from active service, taking on governorships and sitting as a representative peer in the House of Lords.