Information about the Bullmastiff

The Bullmastiff is a large breed of domestic dog. It has a solid build and a short muzzle. The Bullmastiff shares the characteristics of Molosser dogs, and was originally developed by 19th-century gamekeepers in England to guard estates and immobilize poachers. The breed’s bloodlines are drawn from the English Mastiff and Old English Bulldog. It was recognized as a purebred dog by the English Kennel Club in 1924. They are a very quiet dog; they very rarely bark.

Males should be 25 to 27 inches (63 to 69 cm) tall (AKC Std.) at the withers and 110 to 130 pounds (50 to 59 kg). Females should be 24 to 26 inches (61 to 66 cm) at the withers, and 100 to 120 pounds (45 to 54 kg). Exceeding these dimensions is discouraged by breeders.

A bullmastiff’s coat may appear in fawn, red, or brindle. These are the only acceptable colors in the AKC standard. The fawn can range from a very light brown to a reddish brown. Red can range from a light red-fawn to a dark rich red. Brindles are a striped overlay of the fawn or red. A Bullmastiff should have no white markings, except for on the chest where a little white is allowed.

Bred by English gamekeepers in the 19th to assist English wardens or gamekeepers guard estates. As a result the Bullmastiff is known as the Gamekeeper’s Night Dog. The Bullmastiff was a cross of 40% Old English Bulldog (not the short, chubby Bulldog of today) and 60% English Mastiff for its size, strength and loyalty. They bark much less often than other breeds; however, they will bark on alarm.