Thomas Langley was an English prelate who held high ecclesiastical and political offices in the early to mid-15th century. He was Dean of York, Bishop of Durham, twice Lord Chancellor of England to three kings, and a Pseudocardinal. In turn Keeper of the King's signet and Keeper of the Privy Seal before becoming de facto England's first Foreign Secretary. He was the second longest serving Chancellor of the Middle Ages.
- Occupation
- Catholic priest, judge, Catholic bishop
- Position held
- Roman Catholic bishop of Durham
- Citizenship
- Kingdom of England
- Born
- 1363
- Died