Sir John Radcliffe KG (died 1441), of Attleborough, was an English knight and administrator who served as Seneschal of Gascony, 2nd Baron of the Court of Exchequer (Ireland), Joint Chief Butler of Ireland, Bailli of Evreux and Constable of Bordeaux.
John spent his early years in the entourage of Thomas of Lancaster.
[1] It is unclear if he had any legal qualifications: despite their senior judicial office, Irish Barons were not then invariably lawyers.
He was appointed in April 1406, Joint Chief Butler of Ireland by Thomas.
Radcliffe married firstly, Cecilia, daughter of Thomas Mortimer and Mary Parke.