How long does a Pyrenean Mastiff live?

The listed lifespan for a Pyrenean Mastiff is 10–12 years.

How tall is a Pyrenean Mastiff?

The listed height for a Pyrenean Mastiff is 30–31 in (male), 28–30 in (female).

Is a Pyrenean Mastiff good with children?

The AKC good-with-children score for a Pyrenean Mastiff is 4 out of 5.

When is a Pyrenean Mastiff full grown?

The growth size band for a Pyrenean Mastiff is up to 24 months.

Miscellaneous Class

Pyrenean Mastiff

Pyrenean Mastiff is a giant dog in the Miscellaneous Class. Adult weight is 120–190 lb, height is 30–31 in (male), 28–30 in (female), and the listed lifespan is 10–12 years. AKC describes the temperament as Gentle, Brave, Noble.

Last reviewed November 1, 2026.

Lifespan10–12 years

Weight120–190 lb

SizeGiant GroupMiscellaneous Class

Height

30–31 in (male), 28–30 in (female)

Energy

2 / 5

Shedding

4 / 5

Grooming

3 / 5

Trainability

2 / 5

Good with kids

4 / 5

The breed record

Across 36 single-size giant breeds, a lifespan midpoint of 11 years is about 0.8 years longer than the 10.2-year average. A midpoint adult weight of 155 lb is about 39 lb heavier than the 116 lb average for those giant breeds.

The listed origin is Spain. The coat is described as double, medium. The AKC energy score is 2 out of 5, 1.5 points below the group average of 3.5 for the Miscellaneous Class. Shedding scores 4 out of 5, so coat cleanup is a regular job. Grooming scores 3 out of 5. Trainability scores 2 out of 5, so short sessions tend to work better than long drills. Good with children scores 4 out of 5. Good with other dogs scores 4 out of 5.

Adult size is usually reached in up to 24 months (size-band statement (Salt et al. 2017): larger breeds require up to 24 months). AKC parent-club recommended health screenings: Hip Evaluation, Elbow Evaluation, Cardiac Exam, and Degenerative Myelopathy DNA Test. These are screening tests, not a list of diseases the breed is guaranteed to develop.

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