An animal muzzle intended for use on brachycephalic breeds has a manually deformable muzzle frame bounding a frontal opening that is covered at least in part or in whole by a frontal barrier to help prevent the animal from biting. The entire muzzle frame may be manually deformable, or one or more frame segments of the muzzle frame can be rigid and joined to one or more deformable segments of the muzzle frame. An animals owner can shape the muzzle frame to fit the animals face to provide a comfortable fit and not obstruct the animals eyes. The deformable muzzle frame has one or more halter attachment locations on it for attaching a halter to secure the deformable muzzle frame to the animals head.
