Sir John Duckworth, 1st Baronet, English admiral and politician, Commodore Governor of Newfoundland (died 1817)

Admiral of the Blue Sir John Thomas Duckworth, 1st Baronet, GCB was a Royal Navy officer, colonial administrator and politician who served in the Seven Years' War, American War of Independence, French Revolutionary and Napoleonic Wars and War of 1812. In addition to serving as the governor of Newfoundland, he was also a member of the British House of Commons during his semi-retirement. Duckworth, a vicar's son, achieved much in a naval career that began at the age of 11.

The following is a list of governors, commodore-governors, and lieutenant governors of Newfoundland and Labrador. Though the present day office of the lieutenant governor in Newfoundland and Labrador came into being only upon the province's entry into Canadian Confederation in 1949, the post is a continuation from the first governorship of Newfoundland in 1610.