Sir John York or Yorke (died 1569?) was an English merchant who became Master of the Mint and a Member of Parliament.
He was the third son of John Yorke, by his wife Katherine Patterdale or Patterdall. On 3 September 1535 he arrived at Calais from Antwerp with intelligence of a sermon preached against King Henry VIII, by a friar in Antwerp. In 1544 he was appointed assay master to the Mint. In 1547 he was promoted to be Master of the Mint at Southwark, established in the former mansion of Charles Brandon, Duke of Suffolk.
In 1549 he was sheriff of London. In October of this year the quarrel had broken out between the Protector Somerset and John Dudley, Earl of Warwick. Somerset as a defensive move had retired with King Edward VI to Hampton Court, and asked the City of London to furnish him with a thousand men for the royal protection. Warwick, in order to counteract him, moved into the city and stayed at York's house in Walbrook from 6 October 1549. The city came onto Warwick's side. On 8 October the confederate lords dined together at York's house, and on the following day the common council responded to their summons of aid by promising a contingent of soldiers to support them. As a reward for his services Edward VI visited York at his official residence in Southwark on 17 October, and, after dining there, knighted him. Somerset, having been confined in the Tower of London, was brought to York's house at Walbrook on 6 February following, and there released on his recognisances. Here the privy council again sat two days after, probably for security.