| Conflict: | Battle of Cassel |
| Part Of: | Hundred Years' War |
| Date: | 1347 |
| Place: | Cassel, Northern France |
| Result: | Flemish Victory |
| Combatant1: | Kingdom of France |
| Combatant2: | County of Flanders |
| Commander1: | John, Duke of Normandy |
| Commander2: | Unknown |
| Casualties1: | Unknown |
| Casualties2: | Unknown |
The Battle of Cassel, was an action by the French to secure their flanks during the English siege of Calais in 1347.