Abstract: A mechanical hackamore is described which includes a loop formed by a nose band and stabilizer chin strap to be received over the muzzle of an animal such as a horse. Pivots on opposite sides of the loop mount a pair of leverage frame members. A curb strap is attached across rearward ends of the leverage frame members. Reins and a forward stabilizer bar are situated at forwards ends of the leverage frame members. Leverage action may be applied through the geometry of this arrangement for stopping forces. Each frame member is constructed to span a relatively large surface area of the cheek. Turning forces may be applied through the frame members in such a manner that a turning pull on a rein along one side of the animal's head will result in pressure applied against the muzzle to influence turning of the head in the desired direction.