George Granville William Sutherland-Leveson-Gower, 3rd Duke of Sutherland KG FRS (19 December 1828 – 22 September 1892), styled Viscount Trentham until 1833, Earl Gower in 1833 and Marquess of Stafford between 1833 and 1861, was a British politician from the Leveson-Gower family.
Sutherland was the son of George Sutherland-Leveson-Gower, 2nd Duke of Sutherland. He was born at Hamilton Place, London, and was educated at Eton College and King's College London.
Sutherland was LiberalMember of Parliament for Sutherland from 1852 until he succeeded his father as Duke in 1861.
He took part in a number of state occasions. He was one of the British delegation to the coronation of Tsar Alexander II of Russia in 1856, hosted the public visit by Garibaldi to Britain in 1864, attended the opening of the Suez Canal in 1869, and accompanied the Prince of Wales (later Edward VII) on his state visit to India in 1876.
He was Lord Lieutenant for the county of Cromarty from 1852 to his death.
Sutherland was Colonel of the Sutherland Regiment of Highland Volunteers from 1864 to 1882, and of the 20th Middlesex Rifle Volunteers in 1867. He was awarded Honorary Membership of the Institution of Engineers and Shipbuilders in Scotland in 1859. He was made KG in 1864, and FRS in 1870. He was a Knight Grand Cross of the Order of the Redeemer of Greece.