| 1er Bataillon de Fusiliers Marins Commandos | |
|---|---|
| Active | 1942–1946 |
| Countries |  Free France (1942–44) Provisional Government of the French Republic (1944–46) |
| Branch |  Free French Naval Forces |
| Type | Commando |
| Role | Amphibious warfare Anti-tank warfare Artillery observer Close-quarters combat Coastal raiding Cold-weather warfare Direct action HUMINT Patrolling Raiding Reconnaissance Urban warfare |
| Size | Battalion |
| Part of | No. 10 (Inter-Allied) Commando |
| Engagements | |
| Commanders | |
| Notable commanders | Philippe Kieffer |
| Insignia | |
| Identification symbol |  |
1er Bataillon de Fusiliers Marins Commandos was a Fusiliers marins (Sailor Riflemen) commando unit of the Free French Navy, raised in 1942, which served during the Second World War. Its initial Commandant was then-Lieutenant de Vaisseau (Captain) Philippe Kieffer of the Free French Navy, under whose command they participated in the Normandy landings in 1944.