Thomas Bourchier was an English cleric and a prominent figure in the 15th century. He served as the Archbishop of Canterbury from 1454 until his death in 1486. Bourchier played a significant role in the Wars of the Roses, a series of civil wars for control of the English throne, and was known for his efforts to mediate between the rival factions. In addition to his ecclesiastical duties, Bourchier was involved in politics and diplomacy. He was a supporter of the House of York and participated in various councils and assemblies. His contributions to both the church and the state helped shape the political landscape of England during his lifetime.