Thomas Percy, earl of Worcester (born c. 1344—died July 23, 1403) was an English noble, brother of Henry Percy, 1st Earl of Northumberland, and uncle of Sir Henry Percy, called “Hotspur,” and a party to their rebellions against Henry IV of England.
Thomas Percy served with distinction in France during the reign of Edward III; he also held an official position on the Scottish borders, and under Richard II he was the admiral of a fleet. He deserted Richard II in 1399 and was employed and trusted by Henry IV, but in 1403 he joined the other Percys in their revolt; he was taken prisoner at the Battle of Shrewsbury (July 21, 1403) and subsequently beheaded, the earldom becoming extinct.