Tibetan Mastiff

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 110 lb is about 6 lb lighter than the 116 lb average for those giant breeds.

The listed origin is Tibet. The coat is described as double, medium. The AKC energy score is 3 out of 5, 0.7 points below the group average of 3.7 for the Working Group. Shedding scores 4 out of 5, so coat cleanup is a regular job. Grooming scores 3 out of 5. Trainability scores 3 out of 5. Good with children scores 3 out of 5. Good with other dogs scores 3 out of 5. AKC ranked this breed number 142 in 2025.

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, Ophthalmologist Evaluation, and Thyroid Evaluation. These are screening tests, not a list of diseases the breed is guaranteed to develop.