Houndour is a quadruped, canine Pokémon with short, black fur and a red underbelly and muzzle. Its ears and tail are both short and pointed. Two fangs protrude from its upper jaw, and its triangular nose is black. There are white bands on its ankles, and rib-like ridges on its back. Houndour appears to have a simplistic, stylized skull on its forehead with the eye orbits creating eyebrow patterning above its actual eyes. It also has circular, red paw pads on each of its three-toed paws. Houndour can typically be found around rough terrain.