Buckingham Chantry Chapel is a 15th-century chapel and a National Trust property in Buckingham, Buckinghamshire, England. The chapel is the oldest building in Buckingham and is noted in particular for its Norman doorway. Few buildings in Buckingham date to before the 18th century, as a large fire destroyed much of the town in 1725. The chapel is a Grade II* listed building, being added to the list by English Heritage on 13 October 1952.