George John Milles, 4th Baron Sondes (20 January 1794 – 17 December 1874), styled Hon. George Watson until 1820 and Hon. George Milles from 1820 to 1836, was an English peer.
He was commissioned a captain in the 2nd Regiment of Norfolk Yeomanry Cavalry on 27 June 1826.[8] In 1830, he served as High Sheriff of Norfolk.[9] On 31 March 1831, he was promoted to major in the Norfolk Yeomanry.[10]
He succeeded his brother in the peerage on 14 March 1836. On 20 September 1836, he was commissioned a captain in the East Kent Regiment of Yeomanry Cavalry,[11] and resigned his commission in the Norfolk Yeomanry in April 1838.[12] He was present to give homage in person at the coronation of Queen Victoria in June 1838.[13]
Sondes was a shareholder in the Faversham Public Rooms Company, which was wound up in 1871.[14] He died on 17 December 1874 and was succeeded by his eldest son George Milles, 1st Earl Sondes.