Ker Baillie-Hamilton CB (13 July 1804 – 6 February 1889) was a British colonial administrator. He was born in Cleveland, England, and died in Tunbridge Wells, England.

Hamilton was educated at the Royal Military College, Woolwich, where he went on to serve in Mauritius and the Cape of Good Hope. In 1846 became governor of Grenada. Beginning in 1851 he was the administrator of Barbados and the Windward Islands. In 1852 Hamilton was appointed governor of Newfoundland.

Hamilton antagonized the Newfoundland Liberal Party by impeding the decision of the British government in 1854 to grant responsible government. He was quickly transferred by the colonial office and appointed governor of Antigua and the Leeward Islands in March 1855. He was appointed a Companion of the Order of the Bath in the 1862 Birthday Honours.^[1]

• Governors of Newfoundland
• List of people from Newfoundland and Labrador