Gavin Hamilton, 2nd Baron Hamilton of Dalzell

Gavin George Hamilton, 2nd Baron Hamilton of Dalzell, (29 June 1872 – 23 June 1952), was a Scottish Liberal politician.

Hamilton was the second but eldest surviving son of John Hamilton, 1st Baron Hamilton of Dalzell, and his wife Lady Emily Eleanor, daughter of Alexander Leslie-Melville, 10th Earl of Leven. He was educated at Eton College and later pursued a career in the military. Attached to the 28th (Bedfordshire) company, he left Albert Docks in the SS Kent in early February 1900, and arrived at South Africa the following month, where he was Lord-in-waiting to the Prince Arthur, Duke of Connaught and Strathearn. He also became Lord-in-waiting to Edward VII between 1905 and 1910, and George V, 1910–1911. and served as Lord-Lieutenant of Lanarkshire between 1938 and 1952. In 1909 he was made a Knight of the Thistle. He also received foreign awards: the Order of Alexander Nevsky from Russia, the Order of Saints Maurice and Lazarus from Italy, the Norwegian Order of St. Olav, and the Legion of Honour.