Deane Winthrop (23 March 1623 – 16 March 1704) was the sixth son (the third son by his father's third marriage) of the English Puritan colonist John Winthrop, a founder and the 2nd, 6th, 9th and 12th Governor of the Massachusetts Bay Colony. His mother was Margaret Tyndal. He was named after his mother's half-brother, Sir John Deane. He outlived all of his full and half-siblings. There is no known portrait of him.