John de Mowbray, 4th Duke of Norfolk, KG (18 October 1444 – 14 January 1476), known as 1st Earl of Surrey between 1451 and 1461, was the only son of John de Mowbray, 3rd Duke of Norfolk and Eleanor Bourchier. His maternal grandparents were William Bourchier, Count of Eu and Anne of Gloucester. In 1451 the earldom of Surrey was revived for him. Mowbray was descended from a sister of the last earl of the previous creation. Norfolk was invested as a Knight of the Garter in 1472. He died very suddenly, having apparently been in good health the day before.