The words Dog Breed Info with the letter D inside of a black paw print

The Purebred Pyrenean Mastiff

Information and Pictures

Left Profile - A very large white with grey Pyrenean Mastiff dog that is standing on grass and there is a person kneeling behind it.

Breton Grande Y Grato (Australia) the Pyrenean Mastiff

Other Names
  • Perro Mastin del Pireneo
  • Mastin d'Aragon
  • Mastín del Pirineo
  • Mostín d'o Pireneu

pahyuhr-neen Mah-stif


The Pyrenean Mastiff has a dense, double coat. Coat colors include white with brown, gray and black spots.


A brave, gentle, calm giant. They are protective over their families. Very loyal and good with children.

Height, Weight

Height: male 30-31 inches (76-79 cm) female 25-30 inches (63-76 cm)
Weight: 120-240 pounds (54-109 kg)

Health Problems

Generally healthy

Living Conditions

The Pyrenean Mastiff will do okay in an apartment if sufficiently exercised. They are relatively inactive indoors and a small yard is sufficient.


The Pyrenean Mastiff is quite content to laze around the house, but still needs to be taken on a daily walk. While out on the walk the dog must be made to heel beside or behind the person holding the lead, as in a dog's mind the leader leads the way, and that leader needs to be the human. It will enjoy frequent opportunities to swim and frolic.

Life Expectancy

About 10-13 years

Litter Size

About 5-10 puppies


Regular brushing of the long double coat will keep it in good condition, but extra care is needed when the dog is shedding its dense undercoat. The outer coat does not mat unless there is a burr, foxtail or some other outside object that gets stuck to the coat. Bathe or dry shampoo only when necessary. The Pyrenean Mastiff sheds its coat twice a year. They tend to drool.





  • ACA = American Canine Association Inc.
  • AKC/FSS = American Kennel Club Foundation Stock Service® Program
  • DRA = Dog Registry of America, Inc.
Close up head shot - A white with grey and black Pyrenean Mastiff is looking to the right.

Breton Grande Y Grato (Australia) the Pyrenean Mastiff

Close up head shot - A white with grey and black Pyrenean Mastiff is sitting in grass and it is looking to the right. There is a green bush behind it.

This is Yola de la Tajadera del Tio Roy the Pyrenean Mastiff.

Side view - A white with black Pyrenean Mastiff puppy is laying across a concrete surface and it is looking forward.

Momo the black and white Pyrenean Mastiff as a puppy