Barons' War may refer to:
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First Barons' War
The First Barons' War (1215–1217) was a civil war in the Kingdom of England in which a group of rebellious major landowners (commonly referred to as English feudal barony, barons) led by Robert Fitzwalter waged war against John of England, K ...
(1215–1217) in England during the reign of John
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Second Barons' War
The Second Barons' War (1264–1267) was a civil war in Kingdom of England, England between the forces of barons led by Simon de Montfort, 6th Earl of Leicester, Simon de Montfort against the royalist forces of Henry III of England, King Hen ...
(1264–1267) in England during the reign of Henry III
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