Mastiff Dog Breed

English Mastiff Resting
  • Other names:
  • English Mastiff
  • Grand Mastiff

Originally bred for war, the mastiff is one of the heaviest and oldest dog breeds in the world. While the mastiff's ancestors were fierce war dogs, the mastiff today has a docile kind-hearted temperament making the breed perfect for any family that can manage the dog's size and doesn't mind a bit of drool.

The breed is known for their companionship and enduring care and love for their family. They make excellent guard and watch dogs, as most intruders (and guests) are intimidated by a 220 dog watching them approach their property. The dog's size does take a toll on their body as the average mastiff lifespan is roughly 60% the lifespan of the average dog.

Mastiff Breed Details

Breed Specs
Purebred6-10 yrs.27-32 in.120-220 lbs
  • Friendliness
  • Overall
  • Family Friendly
  • Kid Friendly
  • Pet Friendly
  • Stranger Friendly
  • Maintenance
  • Easy to Groom
  • Energy Level
  • Exercise Needs
  • General Health
  • Shedding Amount
  • Behavior
  • Barks / Howls
  • Easy to Train
  • Guard Dog
  • Playfulness
  • Watch Dog
  • Ownership
  • Apartment Friendly
  • Can Be Alone
  • Good for Busy Owners
  • Good for Novice Owners
  • Intelligence
* The more green the stronger the trait.

Below are the characteristics and traits of the mastiff dog breed.

Mastiff Breed Description

There is no doubt that the mastiff is considered a giant dog breed. Males can often exceed 220 pounds and be as tall as 30 inches from ground to shoulder. In 1989 a mastiff named Zorba set the world record by weighing 323 pounds. The potential size of an adult mastiff should be taken into consideration before adopting a mastiff into your family.

Although mastiffs can be very intimidating dogs, they are actually good natured. The breed is known for their courageous spirit and should never be shy or aggressive, but if they feel their family is threatened they will stand between you and the threat. Mastiffs love being around children, however they should be supervised as their large size can easily overwhelm a child. They do well with other pets, but do best when raised with other household animals.

The mastiff requires slightly less maintenance than the average dog breed. They will need to be brushed weekly and their wrinkles will need to be wiped with a damp cloth to keep them clean. They shed more heavily in the spring and fall, so they will need to be brushed daily during this period. The breed needs daily exercise which can be met with a 30 minute walk.

Mastiff Coloring

Below are the standard colors for the mastiff dog breed.

Mastiff Photos

Below are pictures of the Mastiff dog breed.

English Mastiff
English Mastiff Puppy
Fawn Mastiff
English Mastiff Resting

Mastiff Health

Below are health issues and concerns most common in Mastiffs

  • Bloat
  • Cancer
  • Cystinuria
  • Hip Dysplasia
  • Progressive Retinal Atrophy
  • Seizures
  • View all 6...

Mastiff Breed Recognition

The following dog breed registries and organizations recognize the Mastiff as a dog breed:

  • American Canine Registry
  • American Kennel Club
  • America's Pet Registry
  • Australian National Kennel Council
  • Canadian Kennel Club
  • Continental Kennel Club
  • Dog Registry of America Inc.
  • Federation Cynologique Internationale
  • Kennel Club of Great Britain
  • National Kennel Club
  • New Zealand Kennel Club
  • North American Purebred Registry, Inc.
  • United Kennel Club
  • American Canine Association, Inc.
  • View all 14...