Country of OriginUnited Kingdom
Nicknames and Other NamesNone
Scientific NameCanis lupus familiaris
Breed TypePurebred
GroupGuardian Dog
Working Group
Bred ForGuard estates
Life Span7-9 years
Ideal WeightMale: 110-130 pounds
Female: 100-120 pounds
Ideal HeightMale: 25-27 inches
Female: 24-26 inches
Fur Typedense, short, weather-resistant
Common ColorsFawn, Red Brindle, Red,
Red Fawn Brindle, Fawn Brindle
MarkingsBlack Mask
AvailabilityModerately available
AchievementsFeatured in movies and show
Suitable for ApartmentsNo
Used in World WarNo
Most Similar ToMastiff

The Bullmastiff is a large and powerfully build dog having a big head that has a black patch on the face, wrinkled head, and dark hazel eyes. They have V-shaped dark ears. They are very protective of their people and property which make them a great watchdog.

Bullmastiff does well with people but are somewhat aggressive towards other animals, especially towards male dogs. They have a strong prey drive and are not suitable to live with small animals like cats.

Origin and History

The Bullmastiff was developed in the 19th century by crossing Bulldogs and Mastiffs together. They were bred to protect English estate from illegal hunters. They were not bred to attack any intruder but to hold them until the owner returns.

The Bullmastiff is recognized by the American Kennel Club in 1993 and currently ranked 48 of 193 other registered breed.

Is Bullmastiff Child-Friendly?

Bullmastiff does very well with children. They are patient and tolerant of them but due to their large built body, they might knock over small children. They should be watched and supervised.

Baby Patting Bullmastiff

Behavior, Temperament and Personality

Bullmastiff is loving and affectionate towards family members. They are loyal and protective of their people and do well as a family pet. However, they are very suspicious of strangers and should be socialized with variety of people at its early age.

Things to know about Bullmastiff before owning them

Bullmastiff makes a great watchdog and will warn his master if he sees anything suspicious around them. Although they are powerful and originally bred to protect property, they are not likely to attack an intruder. In fact, they will hold them until their master comes back.


Bullmastiff is easy to train if it falls on the hand of a consistent and confident leader. They are not for a first-time dog owner or a person with a soft heart. They need positive reinforcement methods of training that includes treats and lots of vocal praises. However, don’t include only treats as a reward as they will only obey you if you have some treat on your hand.


  • Bullmastiff was not trained to bark or bite. They were trained to track the intruder and hold them.
  • Although they have a powerful body, they only need moderate exercise to keep them content.
  • Bullmastiff were used in police and army service in past.

Health Issues

Bullmastiff is prone to hereditary defect and is less likely to suffer from any serious health problems. The average life expectancy of this breed is 8-10 years, which is less compared to many other dog breeds. Some of the common canine diseases that they might suffer are listed below:

  • Hip Dysplasia
  • Bloat
  • Allergies
  • Elbow Dysplasia

Coats and Colors

Bullmastiff has a short and dense coat that shed moderately throughout the year. Their coat comes in three colors, red, fawn or brindle.


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Bullmastiff Puppies


The average cost of Bullmastiff puppy is between $1500- $2000. If you want to adopt then it will cost around $300 with the expenses of taking care of the puppy.


The height of the male Bullmastiff is from 25 to 27 inches and female is from 24-26 inches. The weight of the male Bullmastiff is between 110 to 130 pounds and female is between 100 to 120 pounds.

Similar Dog Breeds to Bullmastiff

German Wirehaired Pointer

German Wirehaired Pointer

English Bulldog

English Bulldog

Visit Doglime for more breed information about dog behavior.