General Douglas Hamilton (8 April 1818 – 20 January 1892) was a British Indian Army officer, gazetted to the 21st Regiment of the Madras Native Infantry from 1837 to 1871. He was a well known surveyor of the early British hill stations in South India and a famous sportsman, shikari, big-game hunter and trophy collector. He was an acute observer of nature and a gentleman. He legitimately shot more game in the Nilgiri Hills than any other sportsman.

Douglas-Hamilton is the family surname of the Dukes of Hamilton and Earls of Selkirk. The name originates from the marriage of Anne Hamilton, 3rd Duchess of Hamilton to William Douglas, 1st Earl of Selkirk in 1656. Anne was Duchess in her own right and head of the "House of Hamilton". William was a younger son of the Marquess of Douglas.