John Berkeley, 1st Baron Berkeley of Stratton, English soldier and politician, Lord Lieutenant of Ireland (b. 1602)

John Berkeley, 1st Baron Berkeley of Stratton (1602 – 26 August 1678) was an English royalist soldier, politician and diplomat, of the Bruton branch of the Berkeley family. From 1648 he was closely associated with James, Duke of York, and rose to prominence, fortune, and fame. He and Sir George Carteret were the founders of the Province of New Jersey, a British colony in North America that would eventually become the U.S. state of New Jersey.