By Sergey Uhanov (Certified Veterinarian)Dr. Sergey Uhanov Last updated: 27th February 2026

Mountain Mastiff

By

Sergey Uhanov (Certified Veterinarian) Dr. Sergey Uhanov
Last updated: 27th February 2026

A cross between the purebreds Bernese Mountain Dog and English Mastiff, the Mountain Mastiff is a giant dog characterized by a square-like, muscular body, broad skull, drooping ears, deep chest, and straight, powerful legs. Known for its wonderful personality, the Mountain Mastiff happily lives in any environment, whether it is a city condo or a country estate.

Mountain Mastiff Pictures

Quick Information

Other names Mastiff-Bernese Mountain Dog Mix
Coat Short, dense, harsh, rough
Color Black, white, silver, fawn, apricot, brown, black and tan
Breed Type Crossbreed
Group of Breed Working
Lifespan 7-12 years
Weight 150-200 lb
Size/Height Big; 28-38 in
Shedding Moderate to high
Temperament Loving, loyal, alert, energetic, protective
Hypoallergenic No
Good with Children Yes
Barking Occasional
Country Originated in USA
Competitive Registration/ Qualification Information DDKC, IDCR, ACHC, DRA, DBR

Video: Training a Mountain Mastiff

Temperament and Behavior

Mountain Mastiffs are calm, quiet, dignified, courageous, and intelligent dogs that have a carefree attitude about life. They enjoy living with their human family and are the happiest when participating in family activities. Although their size makes them appear fierce, they are kind and docile dogs that will not hesitate to protect their family when threatened by danger.

The Bernese Mountain-Mastiff mixes are known to exist in harmony with cats and other dogs. Additionally, they are gentle and friendly with children though they might injure small kids by inadvertently bumping over them. Therefore, the owner should keep watch over the interactions between a Mountain Mastiff and young children.

Care

Exercise

The exercise needs of an adult Mountain Mastiff can be satisfied with regular 20-30 minute walks. They do not make great jogging companions, as they tend to overheat and wear out their joints when running quickly. Puppies need free play, and they should be allowed to walk or play at their own convenience.

Grooming

Their coat should be brushed weekly using a rubber grooming glove, but daily brushing is required during the shedding season. For the prevention of bacterial infections, clean their wrinkles regularly by wiping with a damp cloth and then drying thoroughly. Brushing their teeth and trimming their nails are some of the other grooming requirements.

Health Problems

No health concerns related to the breed have been observed thus far. However, it can get affected by any of the diseases that are commonly seen in its parents. These include hip dysplasia, cancer, seizures, bloating, progressive retinal atrophy, and blood disorders.

Training

Mountain Mastiff is not suitable for a novice or timid owner. It needs positive reinforcement training, involving treats, praises, and hugs.

  • Obedience Training: Disciplining your Mountain Mastiff puppy is important for making a happy and healthy relationship. You can start with teaching simple commands including ‘heel’, ‘stay’, ‘sit’, and ‘recall’, as they provide an opportunity for bonding.
  • Socialization: Since Mountain Mastiffs have inherent protection instincts, they need to be well socialized with unknown people and pets. Otherwise, they can become shy or fearful of strangers, leading to biting.

Feeding

Mountain Mastiffs, being large dogs, need four-and-a-half to six cups of dry food per day.

FAQ’s

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Mountain Mastiffs are known for being calm, loyal, and protective. They are generally gentle with family members but can be reserved or wary around strangers. Early socialization is important to ensure they develop a balanced temperament.

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Mountain Mastiffs are a giant breed, with males often weighing between 140 to 170 pounds and standing around 28 to 32 inches tall at the shoulder. Females are slightly smaller but still large and powerful dogs.

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Mountain Mastiffs have a dense double coat that sheds seasonally. Regular brushing, at least once or twice a week, helps manage shedding and keeps their coat healthy. More frequent grooming is needed during heavy shedding periods.

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Mountain Mastiffs are intelligent but can be independent and stubborn, so consistent, patient training is necessary. Positive reinforcement methods work best, and early obedience training is recommended to manage their protective instincts.

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Mountain Mastiffs may be prone to joint issues like hip dysplasia and general giant breed health concerns. Regular veterinary check-ups are important to monitor their health, and any specific symptoms should be evaluated by a vet promptly.

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Mountain Mastiffs can be good with children if raised with them and properly socialized from a young age. They tend to be protective but generally calm. Supervision is recommended when they interact with small children or unfamiliar pets.

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Mountain Mastiffs require moderate daily exercise, such as long walks and some playtime, to maintain their health without overexertion. Due to their size, avoid intense or high-impact activities that could stress their joints.

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The average lifespan of a Mountain Mastiff is typically around 8 to 10 years. Providing proper nutrition, regular exercise, and routine veterinary care can help maximize their lifespan.

6 responses to “Mountain Mastiff”

  1. Patricia Lambiase says:

    Where can I get a mountain mastiff, love this dog. Puppy or rescue
    Look forward to hearing from you
    Patsy

  2. Gaetano Balsamo says:

    Hello I own a cane corso for the second time and I’m looking to own one of your dog.. Please let me know when the puppy is available.. Must be a boy. I’m looking forward to Hier from. Thanks Guy

  3. Jacque says:

    I’m also looking for a mountain mastiff anyone know of a breeder? I’ve. Been searching and can’t seem to find one

  4. Matthew Foss says:

    Hello,
    I am looking to find a breeder for these dogs. Do you know where I could find one?

  5. James Herndon says:

    I am looking forward to being a future owner to a mountain mastiff within this year! I am currently living in Anchorage Alaska. I’ve read the page and about them. I will study them further, but they just seem to be a great fit for me and my family at our home here and I know my family would be a great fit to own one ourselves! Please contact me at my email. I’d be happy for the opportunity to raise a pup around the spring or summer time! Thank you!

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