An Apache revolver is a handgun which incorporates multiple other weapons, made notorious by the French underworld figures of the early 1900s known as Les Apaches.

Due to the lack of a barrel, the revolver's effective range is very limited, but since all of its component parts can be folded inward towards the cylinder, it was easily concealable inside a pocket. It was common to leave an empty chamber with no cartridge under the hammer to prevent shooting oneself while having it concealed in a pocket or bag, as the weapon has no trigger guard or safety. This weapon is not able to be aimed precisely because of its lack of front and rear sights. Despite its limited potential, the revolver proved deadly at extremely close range.

For reloading, the cartridge cylinder must be removed and replaced with a full one.