Sir John Bourchier (c. 1438 – 1495) was a 15th-century English knight and nobleman. He was steward of the Honour of Richmond. Bourchier fought in the Battle of Bosworth in 1485 on the side of King Richard III. Bourchier was the fourth son of Henry Bourchier, 1st Earl of Essex and his wife Isabel of Cambridge, Countess of Essex. Bourchier left a will dated 4 June 1495 in which he requested his burial in Bilegh Abbey, Essex, next to the tomb of his parents.