Pyrenean Mastiff
Also known as Mastín del Pirineo · Matin des Pyrenees · Pyrenäen-Mastiff
Spain, Molossian type
- Size
- Giant
- Height
- 72–81 cm
- Weight
- 55–80 kg
- Life expectancy
- 10–12 yrs
- Calm
- Protective
- Loyal
- Independent
Heights and weights are typical adult ranges; individual dogs vary.
About the Pyrenean Mastiff
The Pyrenean Mastiff, from the Spanish side of the Pyrenees, is a giant guardian breed developed to protect flocks from wolves and bears. It is a massive, heavy-boned dog with a broad head, dewlaps and a thick coat, often white with patches of other colours and a dark mask. It is calm, powerful and needs space.
Temperament
Usually calm, steady and affectionate with its family, but strongly protective of its territory and stock. Needs careful early socialisation and calm, consistent handling. May be independent.
Exercise
The Pyrenean Mastiff is a calm giant that is content with daily walks and room to patrol in a secure space. Keep exercise gentle for young dogs, and avoid hot hours of the day.
Grooming
Thick double coat that sheds heavily. Brush a few times a week, and more in the shedding season.
Care & wellbeing
They overheat in warm weather. Check ears and the lips and jowls for dampness.
Daily needs at a glance
For a typical 67.5 kg adult- Water
- 2.7 L–4.1 L
- a day
- Energy
- ≈ 2,640 kcal
- a day, neutered adult
- Exercise
- 30–60 min
- a day
- Grooming
- Brushing a few times a week
Starting points from the same formulas as our calculators. Your pet's age, weight, activity and food all change the numbers. Work it out for your pet
Living with a Pyrenean Mastiff
Typical tendencies for the breed. Upbringing, training and the individual matter as much.
History
A very large guardian breed from the Pyrenees on the Spanish side, used by shepherds to protect flocks from wolves and bears. Its great size and calm, watchful nature were valued in the mountains, and it is now kept mainly as a family guardian.
Health
The breed can be prone to
Health tests to ask a breeder about
- Hip and elbow scores
- Elbow scores
Not every Pyrenean Mastiff is affected, and this isn't a diagnosis. Read about common conditions and when to see a vet.
Cost to keep
Highest than average- Food, insurance and medicines cost more for a big dog
- Little or no professional grooming needed
- A 10–12 year commitment
- Budget for breed-related health checks or insurance
A relative guide, not a price — costs vary a lot by country, insurer and lifestyle.
Is a Pyrenean Mastiff right for you?
Could suit
- Calmer households and owners who prefer gentle walks
Think twice if
- Space, food and vet costs are a concern — giant breeds need more of all three
Not sure? Try the breed finder or read choosing the right dog breed.
Common questions
How big does a Pyrenean Mastiff get?
Adult Pyrenean Mastiffs typically stand about 72–81 cm at the shoulder and weigh around 55–80 kg. Individuals vary, and males are often larger than females.
How long do Pyrenean Mastiffs live?
Typically 10–12 years. Keeping them lean, active and up to date with vet checks gives the best chance of a long, healthy life.
How much exercise does a Pyrenean Mastiff need?
As a guide, around 30–60 minutes a day, split between walks, play and sniffing time. Puppies and older dogs need shorter, gentler sessions.
How much grooming does a Pyrenean Mastiff need?
Brushing a few times a week. Check ears, teeth and nails as part of the routine.
Are Pyrenean Mastiffs easy to train?
Generally trainable with consistent, reward-based practice.
Do Pyrenean Mastiffs shed?
A moderate amount. Regular brushing keeps loose hair under control.
Are Pyrenean Mastiffs good with children?
Many get on well with children. Always supervise young children with any dog, and teach them to give the dog space.
Can a Pyrenean Mastiff live in a flat?
It's usually a challenge — as long as they get enough daily exercise and time outdoors.
What health problems do Pyrenean Mastiffs have?
The breed can be prone to hip and elbow dysplasia, bloat (gastric dilatation-volvulus). Not every Pyrenean Mastiff is affected — ask a breeder about health testing, and your vet about what to watch for.
Written by Petopedia as general guidance, not veterinary advice. Ask your vet about health screening for this breed.
Breed details
- Country of origin
- Spain
- Type
- Molossian type
- Internationally recognised
- 1954