By Avatar photoShiloh Nevada Last updated: 18th October 2022

Spanish Mastiff


Avatar photo Shiloh Nevada
Last updated: 18th October 2022

The large, stocky, hardy breed of dogs, Spanish Mastiff, originating in Spain, with a massive chest, a muscled, rectangular structure, fall under category mountain dog that are popular as pets as also in exhibitions and shows.

Spanish Mastiff Pictures

Quick Information

Also known asMastín Español, Mastín Leonés
CoatDense, short
Basic ColorsWolf-sable, fawn, brindle, red, yellow, black
Breed TypePurebred
Group (of Breed)Mastiff, Flock guard
Lifespan10-11 years
WeightMales: 185 – 220 pounds; Females: 145 – 170 pounds
Height (size)
Large; 28-35 inches
TemperamentLoyal, loving, noble, intelligent
Good with ChildYes
Health ConcernsHip dysplasia, heart problems, entropion, obesity
SheddingHeavily, twice a year
Competitive RegistrationCKC, FCI, UKC, NKC, ARBA, APRI, ACR, DRA, NAPR, AKC/FSS, ACA


Mastiffs, being one of the most ancient dogs, have their ancestors dating back to 5000 years that were ferocious war dogs, different from today’s affectionate mastiffs. These dogs were originally bred as guardian dogs for livestock for protection against wolves etc.


There are two types of Spanish mastiff:

  1. The hefty, strong type Mastin Pesado (or, the Heavy Mastiff), more populous in mountainous Spain, taking part in expositions and dog shows.
  2. A lighter, refined steppe type named Mastin Ligero (or, the Light Mastiff).


The extremely calm and gentle dog is pretty tolerant towards children and strangers and protector of its whole family. They are not suitable for urban life for their booming voice, as they might pester their neighbors and even its own owner, especially, if living in an apartment. So it’s better to give a thought before adopting them.



A daily walk for an hour twice a day and an open but enclosed space to freely move around with their huge size is enough. They take a long time to grow up to be an adult. Because their activity level is low, they need only some moderate exercise.


Regularly, brush their short, dense coat, clean ears, trim nails from time to time and brush their teeth 2 to 3 times weekly to keep away away bacteria and tartar build-up.

Health Problems

Other than common problems like hip dysplasia, entropion (inversion of the eyelids) and heart problems, pano-ostiosis, bloating, slobbering, drooling, snoring loudly are also common to the Spanish mastiff.


Right from puppyhood days train them properly to get used to other dogs, since they can hardly tolerate other breeds. Teach them to refrain from barking when ordered. Their self-assured, determined personality helps them pick up training quickly.


Provide them with 6 to 8 cups of high-quality dog food every day, divided into two meals.

Interesting Facts

  • The Spanish Mastiff is the largest of all the Spanish native dog breeds and is the heaviest of the LGDs.
  • The Anatolian Shepherd Dog is one of the closest cousins to the Spanish Mastiff.
  • They are not recommended for those who are looking for a breed to play Frisbees with, move out for a jog or run alongside bikes.

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