:John Marshall (bishop)

{{Short description|Bishop of Llandaff (died 1496)}}

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John Marshall (or Marshal) (died 1496){{Cite web|url=https://churchmonumentssociety.org/monument-of-the-month/the-tomb-of-john-marshall-in-llandaff-cathedral|title=Monument of the month – the tomb of John Marshall|website=churchmonumentssociety.org}} was a Bishop of Llandaff in Wales.

John was a fellow of Merton College, Oxford and a canon of Windsor. On 6 September 1478, he was consecrated Bishop of Llandaff. He is well remembered for having repaired the damage done to the cathedral during Owain Glyndŵr's reign. He also erected a new bishop's throne and a reredos, parts of which survives. He died in January or February 1496 and was buried in Llandaff Cathedral where his monumental effigy may still be seen.