Sir Dudley North (16 May 1641 in Westminster – 31 December 1691 in London) was an English merchant, politician and economist, a writer on free trade.
He was the fourth son of Dudley North, 4th Baron North. In his early years he was carried off by Gypsies but was recovered by his family. He was the brother of Francis North, 1st Baron Guilford and Roger North.
He engaged in foreign trade, especially with Turkey, and spent a number of years at Constantinople and Smyrna. Having returned to London with a fortune, he continued to trade with the Levant. His knowledge of commerce attracted the attention of the government, and he was further recommended by the influence of his brother Lord Guilford. During the Tory reaction under Charles II he was one of the sheriffs forced on the city of London in 1683 with an express view to securing verdicts for the crown in state trials.
He was knighted in 1683, and was appointed a commissioner of customs, and later of the treasury, and then again of the customs. Having been elected a member of parliament in 1685 for Banbury under James II, he took, says Roger North, the place of manager for the crown in all matters of revenue. After the Glorious Revolution he was called to account for his alleged unconstitutional proceedings in his office of sheriff.