The Battle of Crotoy was a naval battle which occurred on 25 June 1347 at the mouth of the Somme off the Le Crotoy, when a French fleet of 40 ships gathered in attempted to relieve Calais, where an English army under the command of King Edward III of England was besieging the French town during the Edwardian phase of the Hundred Years' War.
|Battle of Crotoy|
|Part of Hundred Years' War (1337–1360)|
|Kingdom of France||Kingdom of England|
|Commanders and leaders|
|William de Bohun, 1st Earl of Northampton, Laurence Hastings, 1st Earl of Pembroke|
|Casualties and losses|
- Tout 1969, p. 367.
- Tout, T.F. (1969). The History of England From the Accession of Henry III to the Death of Edward III. (1216–1377). New York: Haskell House Publishers.