Bullmastiff Bullmastiff

Bullmastiff

Loyal Calm Protective Brave

About the Bullmastiff

The Bullmastiff was developed in 19th-century England by crossing Bulldogs with Mastiffs — the goal was a powerful, silent guardian capable of tracking and pinning poachers on large estates without mauling them. Standing 24–27 inches tall and weighing 100–130 pounds, the Bullmastiff is a massive, muscular dog with a broad head, dark muzzle, and an imposing physical presence. Their short, dense coat comes in fawn, red, or brindle — always with a black mask — and sheds moderately with minimal grooming requirements.

Temperament & Personality

Bullmastiffs are confident, loyal, and naturally protective — they are alert guardians who rely on their size and intimidating presence rather than excessive barking to deter intruders. Despite their imposing appearance, they are gentle and affectionate with their families, showing particular patience and tenderness with children. They are typically calm and quiet indoors, content to lie at their owner's feet, but they can be territorial with unfamiliar dogs and require early, consistent socialization.

Pros

  • Naturally protective — their imposing presence alone is an effective deterrent
  • Surprisingly low-energy indoors, adapting well to a calm household routine
  • Gentle and affectionate with family members, including children
  • Minimal grooming needs with their short, easy-care coat

Cons

  • Short lifespan averaging only 7–9 years
  • Prone to bloat, hip and elbow dysplasia, lymphoma, and mast cell tumors
  • Significant drooling, especially around mealtimes and in warm weather
  • Their sheer size and strength require an experienced owner capable of managing 100+ pounds of dog

A Bullmastiff offers protection and companionship in equal measure — explore adoptable Bullmastiffs on Puplister and find your gentle giant.

Bullmastiff Quick Facts

Size
100–130 lbs, 24–27 in
Lifespan
7–9 years
Exercise
Moderate
Grooming
Low
Good with Kids
Yes
Good with Pets
Not recommended

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Available Bullmastiffs

Big Boy
Adult

Bullmastiff

Los Angeles County Animal Control · Castaic, CA
Baloo
Adult
Baloo
L

Bullmastiff

Canine Rescue Coalition · Goodyear, AZ
Dottie
Adult
Dottie
M

Bullmastiff

Third Coast Pets Alive · Willis, TX
Iddie
Adult
Iddie
M

Bullmastiff

Arizona Humane Society · Phoenix, AZ
Medusa
Adult
Medusa
L

Bullmastiff

Albuquerque Animal Services Westside · Albuquerque, NM

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Frequently Asked Questions

What are the key traits of a Bullmastiff?
The Bullmastiff is known for being loyal, calm, protective and brave.
How many Bullmastiffs are available for adoption?
There are currently 5 Bullmastiffs available for adoption on Puplister. Browse the listings above to find your perfect match.
How do I adopt a Bullmastiff from Puplister?
To adopt a Bullmastiff, browse the available listings on this page, click on a pet you're interested in, and contact the shelter directly through their profile page.