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The Bull Mastiff is a powerful dog, said to
be a cross between the English Mastiff and
the Bulldog. Originally bred to find and
immobilise poachers, the breed has proved
its value as a family pet.
25-27 inches
Very High
Very High
8-10 Years
Short, smooth, dense
Very High
Great Britain
Brindle, fawn or red, white markings
Loyal, fearless, and loving
90-130 pounds

Bullmastiff's are to be 25 to 27 inches at the withers, and 110 to 130 pounds. Females
are to be 24 to 26 inches at the withers, and 100 to 120 pounds. Any shade of brindle,
fawn, or red is allowed . A black muzzle is essential, toning off towards the eyes, with
dark markings around eyes contributing to the expression.


The Bullmastiff is courageous, loyal, calm, and loving with those it knows. It has a very
strong protective instinct and will defend its owners against anything it perceives as a
threat. However, it does not normally attack to protect. Instead, it simply knocks the
intruder over with its massive size and pins them to the ground, or, will simply stand in
front of the stranger/intruder and refuse to let them pass.   Parental supervision should
be maintained when they are with children because these dogs are so big that they
may accidentally knock smaller children down.


Bred to sneak up on poachers, the Bull mastiff barks much less often than other
breeds, but when they bark they will make your head turn, as it is dark and hollow
sounding. The Bullmastiff was recognized as a pure-bred dog in 1924 by the English
Kennel Club. In October, 1933, The American Kennel Club recognized the Bullmastiff.