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Bullmastiff vs American Bulldog vs Great Pyrenees Comparison - Dog breed selector: Bullie or AM Bulldog or Chien De Montagne Des Pyrénées? Find the right dog for you

"Find similarities and differences between Bullmastiff vs American Bulldog vs Great Pyrenees" Compare Bullmastiff and American Bulldog. Which is better: Bullmastiff or American Bulldog or Great Pyrenees?
 
 
 
Name Bullmastiff American Bulldog Great Pyrenees
OriginsEngland flagEngland United States flagUnited States Spain flagSpain France flagFrance
Group Working Dogs Guard Dogs Pastoral / Herding Dogs
Popularity Rank5127266
Reviews135
User Ratings

Common Names & Aliases
Compare alternative names and nicknames used for Bullmastiff, American Bulldog, and Great Pyrenees breeds.
Bullie
Bully
AM Bulldog
American Bulldogge
American Bulldoggee
Old Country Bulldog
AmBulldog
Chien De Montagne Des Pyrénées
Chien Des Pyrénées
Gos De Muntanya Dels Pirineus
Montañés Del Pirineo
Patou
Great Pyrenees
Breed Classification
How do breed classifications differ between Bullmastiff, American Bulldog, and Great Pyrenees? Compare their breeding categories.
Purebred Purebred Purebred

Bullmastiff vs American Bulldog vs Great Pyrenees Size and Weight Comparison

Size Classification
Compare size differences between Bullmastiff, American Bulldog, and Great Pyrenees. Which breed is the largest?
Large Large Giant
Weight Statistics
How do weights compare between Bullmastiff, American Bulldog, and Great Pyrenees? Compare adult weight ranges.
Male: 110-133 pounds (50–60 kg), Female: 100-120 pounds (45-55 kg) Male: 70-120 pounds (32-54 kg), Female: 60-100 pounds (27-45 kg) Male: from 100 pounds (45 kg), Female: from 85 pounds (38 kg)
Average Weight
Which dog has a smaller / higher average weight?
Male: 121.5 pounds (50–60 kg), Female: 110 pounds (50 kg) Male: 95 pounds (43 kg), Female: 80 pounds (36 kg) Male: from 100 pounds (45 kg), Female: from 85 pounds (38 kg)
Height
Which is taller, Bullmastiff or American Bulldog or Great Pyrenees? Bullmastiff vs American Bulldog vs Great Pyrenees height comparison:
Male: 25-27 inches (63–69 cm), Female: 24-26 inches (61–66 cm) Male: 22-28 inches (55-70 cm), Female: 20-26 inches (52-65 cm) Male: 27-32 inches (69-81 cm), Female: 25-29 inches (63-74 cm)
Average Height
Which dog has a smaller / higher average height?
Male: 26 inches (63–69 cm), Female: 25 inches (61–66 cm) Male: 25 inches (62.5 cm), Female: 23 inches (58.5 cm) Male: 29.5 inches (75 cm), Female: 27 inches (68.5 cm)

Bullmastiff vs American Bulldog vs Great Pyrenees Price and Availability Comparison

Price Range
Compare puppy costs for Bullmastiff, American Bulldog, and Great Pyrenees. Find price differences between these breeds.
$1200-$1500 $500-$600 $500-$600
Availability
Which is easier to get, Bullmastiff or American Bulldog or Great Pyrenees?
Very frequent: The Bullmastiff is quite easy to get.
Average: The American Bulldog is a commonly available dog breed.
Very frequent: The Great Pyrenees is quite easy to get.

Bullmastiff vs American Bulldog vs Great Pyrenees Trainability and Intelligence Comparison

Intelligence Rating
Compare intelligence levels between Bullmastiff, American Bulldog, and Great Pyrenees. Which breed ranks highest?
Low to average: This canine intelligence is not the brightest one.
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Average: It takes patience to teach this breed any tricks or commands, but the effort is worth it.
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Average: It takes patience to teach this breed any tricks or commands, but the effort is worth it.
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Training Difficulty
Compare training difficulty levels between Bullmastiff, American Bulldog, and Great Pyrenees. Which is easiest to train?
Bullmastiff dogs are quite easy to train.
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American Bulldog dogs are quite easy to train.
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Great Pyrenees dogs are easy to train.
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Watchdog Rating
Compare watchdog abilities of Bullmastiff, American Bulldog, and Great Pyrenees. Which breed is most alert?
Bullmastiff dogs are one of the best watchdogs.
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American Bulldog dogs are one of the best watchdogs.
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Great Pyrenees dogs are one of the best watchdogs.
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Territorial Protection
Compare territorial instincts between Bullmastiff, American Bulldog, and Great Pyrenees. Which breed is most protective?
Bullmastiff dogs are extremely protective guard dogs.
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American Bulldog dogs are extremely protective guard dogs.
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Great Pyrenees dogs strongly protect their territory.
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Bullmastiff vs American Bulldog vs Great Pyrenees Personality and Temperament Comparison

Personality Traits
How do personalities differ between Bullmastiff, American Bulldog, and Great Pyrenees? Compare temperaments.
Protective
Alert
Powerful
Courageous
Docile
Reliable
Loyal
Devoted
Calm
Loving
Energetic
Alert
Courageous
Affectionate
Gentle
Going
Social
Confident
Affectionate
Patient
Gentle
Strong
Willed
Fearless
Sensitivity Level
Which dog is more sensitive? What's the difference?
They are a little bit more sensitive than other dog breeds.
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They are a little bit more sensitive than other dog breeds.
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They are a little bit more sensitive than other dog breeds.
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Affection Level
Which is the more affectionate dog breed: Bullmastiff vs American Bulldog vs Great Pyrenees?
Average: Bullmastiff dogs are average dogs regarding their affection level.
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High: American Bulldog dogs are genuinely loyal, soft and gentle, loving, and affectionate dogs toward their handlers.
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Average: Great Pyrenees dogs are average dogs regarding their affection level.
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Social Needs
Bullmastiff vs American Bulldog vs Great Pyrenees social needs comparison:
Bullmastiff dogs need for social interaction is average.
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American Bulldog dogs are a social breed.
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Great Pyrenees dogs are a social breed.
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Impulse to Wander or Roam
Which dog has a greater roaming instinct?
Bullmastiff dogs have average wanderlust potential.
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American Bulldog dogs tend to escape less than other breeds.
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Great Pyrenees dogs have high wanderlust potential, which means that this breed has a strong desire for exploring the world.
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Prey Drive
Which dog has a higher prey drive? Which can be better for hunting?
Bullmastiff dogs have an average prey drive, which means that they don't have a high impulse to chase and catch something like a cat or any other small aminals, but it might happen.
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American Bulldog dogs have an average prey drive, which means that they don't have a high impulse to chase and catch something like a cat or any other small aminals, but it might happen.
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Great Pyrenees dogs have a high impulse to chase and catch something.
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Bullmastiff vs American Bulldog vs Great Pyrenees Activity and Playfulness Comparison

Barking Frequency
Compare barking frequencies of Bullmastiff, American Bulldog, and Great Pyrenees. Which breed is most vocal?
Low: The Bullmastiff barks none to minimal.
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Low to Average: The American Bulldog rarely barks.
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Average to High: The Great Pyrenees is a vocal breed.
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Playful Nature
Compare playfulness levels between Bullmastiff, American Bulldog, and Great Pyrenees. Which breed is most playful?
Bullmastiffs are not the most playful dog breed.
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The American Bulldog is a playful breed.
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Great Pyreneess are not the most playful dog breed.
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Apartment Adaptability
Compare apartment suitability of Bullmastiff, American Bulldog, and Great Pyrenees. Which adapts best to small spaces?
It is not the best choice if you want to keep them indoors, however, with careful exercise and several walks a day, they will tolerate the indoor environment, so it is possible to keep Bullmastiff indoors.
It is not the best choice if you want to keep them indoors, however, with careful exercise and several walks a day, they will tolerate the indoor environment, so it is possible to keep American Bulldog indoors.
It is not recommended to keep the Great Pyrenees breed in the home.

Bullmastiff vs American Bulldog vs Great Pyrenees Adaptability and Independence Comparison

Lifestyle Adaptability
Compare adaptability between Bullmastiff, American Bulldog, and Great Pyrenees. Which breed is most flexible?
Average: Bullmastiff dogs adapt to lifestyle changes and different living environments quite okay usually.
American Bulldog dogs adapt well to lifestyle changes and different living environments.
Great Pyrenees dogs adapt well to lifestyle changes and different living environments.
Alone Time Tolerance
Which dog can be left alone: Bullmastiff or American Bulldog or Great Pyrenees?
Just like every puppy, they are prone to panic, cry, bark, whine when they left alone by their owner.
American Bulldog dogs do best when a family member is at home during the day or if their workplace is dog-friendly so they can take the dog at work.
Great Pyrenees dogs do best when a family member is at home during the day or if their workplace is dog-friendly so they can take the dog at work.

Bullmastiff vs American Bulldog vs Great Pyrenees Bite Characteristics Comparison

Bite Risk Assessment
Compare biting potential between Bullmastiff, American Bulldog, and Great Pyrenees. Which has lowest bite risk?

Low 🔽

The Bullmastiff has a low chance of biting somebody.

Moderate

The American Bulldog has an average chance of biting somebody.

Low 🔽

The Great Pyrenees has a low chance of biting somebody.
Mouthing Tendency
Compare mouthing tendencies between Bullmastiff, American Bulldog, and Great Pyrenees. Which uses mouth most during play?
Bullmastiff dogs have an average tendency to nip, chew, playbite, or herd people.
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American Bulldog dogs have a lower than average tendency to nip, chew, playbite, or herd people.
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Great Pyrenees dogs have a lower than average tendency to nip, chew, playbite, or herd people.
See more.
Bite Strength Rating
Compare bite forces between Bullmastiff, American Bulldog, and Great Pyrenees. Which has the strongest bite?

Between 200 and 400 PSI

Bullmastiff bite force: Ordinary.

Between 200 and 400 PSI

American Bulldog bite force: Ordinary.

Above 400 PSI 🔼

Great Pyrenees bite force: The Strongest.

Bullmastiff vs American Bulldog vs Great Pyrenees Health and Lifespan Comparison

Average Lifespan
Compare life expectancies of Bullmastiff, American Bulldog, and Great Pyrenees. Which breed lives longest?
8-10 years
The average lifespan of Bullmastiff: 9 years
10-12 years
The average lifespan of American Bulldog: 11 years
10-12 years
The average lifespan of Great Pyrenees: 11 years
Climate Tolerance
Compare weather adaptability between Bullmastiff, American Bulldog, and Great Pyrenees. Which handles climate changes best?
Prefers average to cold weather conditions
The Bullmastiff can adapt to well to cold weather conditions, some dogs even can be a good mountain dog.
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Prefers average to warm weather conditions
Different dogs have different preferences when it comes to weather conditions.
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Prefers cold weather
The Great Pyrenees can adapt well to harsh weather conditions, and also can be a good mountain dog.
See more.
Health Concerns
Compare health problems common in Bullmastiff, American Bulldog, and Great Pyrenees. Which has fewer health issues?
Very healthy dog breed.
American Bulldogs tend to have more frequent health issues than other breeds.
Great Pyreneess are commonly healthy dogs.
Vet Care Frequency
Which one may need more or less veterinary visits?
Rare
The Bullmastiff should have a complete physical check-up at least every 12-18 months (but preferably once per year).
Frequent
The American Bulldog should have a complete physical check-up at least once (but preferably twice) per year.
Rare
The Great Pyrenees should have a complete physical check-up at least every 12-18 months (but preferably once per year).
Health Problems
Which one has more or less genetic/health problems: Bullmastiff vs American Bulldog vs Great Pyrenees? What are the allergies, genetic diseases and concerns for them? Bullmastiff vs American Bulldog vs Great Pyrenees health problems comparison:
Cancer
Hypothyroidism
Progressive retinal atrophy (PRA)
Heart Problems
Entropion
Kidney Issues
Hemangiosarcoma
Lymphosarcoma
Osteosarcoma
Hip Dysplasia
Allergies
Cancer
Entropion
Cherry Eye
Ectropion
Elbow Dysplasia
Cataracts
Hip Dysplasia
Patellar Luxation
Bloat
Entropion
Drug Sensitivity
Elbow Dysplasia
Addison's Disease

Bullmastiff vs American Bulldog vs Great Pyrenees Energy and Activity Comparison

Energy Rating
Compare energy levels between Bullmastiff, American Bulldog, and Great Pyrenees. Which breed is most active?
Bullmastiff dogs have a lower energy level than other dogs.
American Bulldog dogs have a higher energy level than other dog breeds.
Great Pyrenees dogs have a higher energy level than other dog breeds.
Activity Requirement / Exercise Need
Bullmastiff vs American Bulldog vs Great Pyrenees exercise need comparison. Which dog needs more activity? Which dog needs the most exercise: Bullmastiff or American Bulldog or Great Pyrenees? Which dog needs the most walking? Which dog is the laziest?
Bullmastiff dogs exercise need is minimal.
American Bulldog dogs have an average exercise need.
Great Pyrenees dogs have an average exercise need.
Sleeping Need
Which one sleeps the least/most: Bullmastiff or American Bulldog or Great Pyrenees?
Bullmastiff dogs like sleeping so they do sleep a lot.
American Bulldog dogs like sleeping so they do sleep a lot.
Great Pyrenees dogs don't need too much sleep.

Bullmastiff vs American Bulldog vs Great Pyrenees Diet and Weight Management Comparison

Obesity Tendency
Compare weight gain tendencies between Bullmastiff, American Bulldog, and Great Pyrenees. Which is most prone to obesity?
High: The Bullmastiff breed has a strong tendency to be overweight.
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Low to Average: The American Bulldog has a low to the average risk for obesity.
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Average to High: If you don't pay attention to the Great Pyrenees's weight, he can easily gain weight.
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Food Consumption
Compare food requirements between Bullmastiff, American Bulldog, and Great Pyrenees. Which needs most food?
3 to 4.5 cups of high-quality dry food a day, divided into two meals. 3 to 5 cups of a high-quality dog food daily, divided into two meals. 8 to 10 cups of high-quality dry food a day, divided into two meals

Bullmastiff vs American Bulldog vs Great Pyrenees Allergies and Grooming Comparison

Allergy Friendliness
Compare hypoallergenic qualities of Bullmastiff, American Bulldog, and Great Pyrenees. Which is best for allergy sufferers?
No See more. No See more. No See more.
Coat Colors
Compare color variations between Bullmastiff, American Bulldog, and Great Pyrenees. What colors are available?
Red
Fawn
Brindle
Black
White
Brown
Fawn
White
Grooming Requirements
Compare grooming needs between Bullmastiff, American Bulldog, and Great Pyrenees. Which requires most maintenance?
Easy to groom: The Bullmastiff doesn't require a lot of grooming.
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Effortless: The American Bulldog requires minimal grooming.
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Average: The Great Pyrenees requires average grooming effort.
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Drooling Tendency
Compare drooling tendencies between Bullmastiff, American Bulldog, and Great Pyrenees. Which drools least?
The Bullmastiff is a big drooler, so if you're disgusted by slobber spots on your clothes, you should choose a dog from another breed.
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The American Bulldog drools quite a lot, so if you dislike being covered by slobber spots on your clothes, you may want to choose another dog breed.
See more.
The Great Pyrenees is a perfect example of a low drooling tendency.
See more.
Stinkiness Rating
Compare odor levels between Bullmastiff, American Bulldog, and Great Pyrenees. Which has least natural smell?

High 🔼

The Bullmastiff has a high chance of bad smell.

Medium

The American Bulldog has an average chance of bad smell.

Medium

The Great Pyrenees has an average chance of bad smell.
Coat Characteristics
Compare coat types between Bullmastiff, American Bulldog, and Great Pyrenees. How do their fur characteristics differ?
Rough Fine Dense
Double
Bathing Needs
Compare bathing needs between Bullmastiff, American Bulldog, and Great Pyrenees. Which requires most frequent baths?
4-6 weeks
Average. Experts recommended at least every 4-6 weeks for this family pup.
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3-4 weeks
More often than average. These dog coats tend to be longer, softer, and oilier than short-haired breeds.
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3-4 weeks
More often than average. These dog coats tend to be longer, softer, and oilier than short-haired breeds.
See more.
Shedding Level
Who sheds more Bullmastiff or American Bulldog or Great Pyrenees? Bullmastiff or American Bulldog or {name3 shedding:
Bullmastiff dogs shed moderately.
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American Bulldog dogs shed moderately.
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Great Pyrenees dogs shed above average.
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Bullmastiff vs American Bulldog vs Great Pyrenees Good With Comparison

Child Compatibility
Compare child-friendliness between Bullmastiff, American Bulldog, and Great Pyrenees. Which is best with kids?
Bullmastiff dogs are kid-friendly dogs.
American Bulldog dogs are kid-friendly dogs.
Great Pyrenees dogs are kid-friendly dogs.
Pet Compatibility
Which dog breeds get along well with other animals/pets?
Bullmastiff dogs do best when they’re the only pet at the family.
American Bulldog dogs usually don’t get on well with other pets.
Great Pyrenees dogs are usually friendly towards other pets.
Stranger Friendly
Which dog is more stranger friendly Bullmastiff or American Bulldog or Great Pyrenees? Which dog is more friendly?
Bullmastiff dogs are average friendly towards strangers.
American Bulldog dogs are not the most stranger-friendly dogs.
Great Pyrenees dogs are average friendly towards strangers.
Cat Friendly
Which dog is more cat friendly Bullmastiff or American Bulldog or Great Pyrenees?
Bullmastiff dogs are not cat-friendly dogs.
American Bulldog dogs are not the most cat-friendly dogs.
Great Pyrenees dogs are cat-friendly dogs.
Dog Friendly
Which dog is more dog friendly Bullmastiff or American Bulldog or Great Pyrenees?
Bullmastiff dogs are not dog-friendly.
American Bulldog dogs are average friendly towards other dogs.
Great Pyrenees dogs are average friendly towards other dogs.
Good For First Time Owners
Which dog is good for the first-time owners: Bullmastiff vs American Bulldog vs Great Pyrenees?
Yes
Bullmastiff dogs are good for novice owners, due to their easy-going personality.
Yes
American Bulldog dogs are good for novice owners, due to their easy-going personality.
Yes
Great Pyrenees dogs are good for novice owners, due to their easy-going personality.
Office Friendly
Which one fits better in the office?
No
Bullmastiff is not the best dog breed for office environment.
No
American Bulldog is not the best dog breed for office environment.
No
Great Pyrenees is not the best dog breed for office environment.
Senior Citizens Friendly
Which dog is good for elderly people?
Bullmastiffs are usually recommended for elderly people.
American Bulldogs are usually recommended for elderly people.
Great Pyreneess are usually recommended for elderly people.

Bullmastiff vs American Bulldog vs Great Pyrenees As a Working Dog Comparison

Service Dog Capability
Compare service dog potential between Bullmastiff, American Bulldog, and Great Pyrenees. Which is best suited for service work?

Not really

This breed generally not used as a service dog.
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Not really

This breed generally not used as a service dog.
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Not really

This breed generally not used as a service dog.
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Therapy Work Suitability
Compare therapy dog potential between Bullmastiff, American Bulldog, and Great Pyrenees. Which excels in therapy work?

Yes

This breed makes a perfect therapy dog.
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Not really

This breed is generally not used as a therapy dog.
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Not really

This breed is generally not used as a therapy dog.
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Scent Detection Ability
Compare detection capabilities between Bullmastiff, American Bulldog, and Great Pyrenees. Which has best nose work ability?

Not really

They are not typically employed for this type of work, but there may be exceptional cases.

Not really

They are not typically employed for this type of work, but there may be exceptional cases.

Not really

They are not typically employed for this type of work, but there may be exceptional cases.
Search & Rescue Potential
Compare search and rescue potential between Bullmastiff, American Bulldog, and Great Pyrenees. Which is best for SAR work?

Not really

This dog breed is not typically used as a search and rescue dog.

Not really

This dog breed is not typically used as a search and rescue dog.

Not really

This dog breed is not typically used as a search and rescue dog.
Maritime Work Ability
Compare boating aptitude between Bullmastiff, American Bulldog, and Great Pyrenees. Which is best suited for water work?

Not really

Bullmastiff breed usually doesn't like being on a boat.
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Not really

American Bulldog breed usually doesn't like being on a boat.
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Not really

Great Pyrenees breed usually doesn't like being on a boat.
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Draft Work Capability
Compare cart pulling abilities between Bullmastiff, American Bulldog, and Great Pyrenees. Which is best for draft work?

Yes

A drafting dog or draft dog is a dog bred and used for cart pulling.
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Yes

A drafting dog or draft dog is a dog bred and used for cart pulling.
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Yes

A drafting dog or draft dog is a dog bred and used for cart pulling.
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Military Service Background
Compare military service history of Bullmastiff, American Bulldog, and Great Pyrenees. Which has most military use?

Not really

In history, this breed was not really used for combat dog.

Yes

In history, this breed was unfortunately used for combat dogs.

Not really

In history, this breed was not really used for combat dog.

Bullmastiff vs American Bulldog vs Great Pyrenees Reproducibility Comparison

Puppy Litter Size
Compare typical litter sizes of Bullmastiff, American Bulldog, and Great Pyrenees. Which has most puppies?
4-13 puppies, average 8 7-14 puppies 6-9 puppies
Pregnancy Duration
Compare gestation periods of Bullmastiff, American Bulldog, and Great Pyrenees. Any breeding differences?
60-64 days See more. 60-64 days See more. 60-64 days See more.
Breeding Frequency
Compare breeding intervals between Bullmastiff, American Bulldog, and Great Pyrenees. What's recommended?

Once a year.

More frequent breeding is not healthy.
See more.

Once a year.

More frequent breeding is not healthy.
See more.

Once a year.

More frequent breeding is not healthy.
See more.

Bullmastiff vs American Bulldog vs Great Pyrenees Recognition Comparison

AKC Classification
Compare AKC groups for Bullmastiff, American Bulldog, and Great Pyrenees. How are they classified?
Recognized by the American Kennel Club in 1934 as a Working breed. Not recognized by the American Kennel Club. Recognized by the American Kennel Club in 1933 as a Working breed.
FCI Classification
Compare FCI groups for Bullmastiff, American Bulldog, and Great Pyrenees. How are they classified internationally?
Recognized by FCI in the Pinscher and Schnauzer - Molossoid and Swiss Mountain and Cattledogs group, in the Molossian type section. Not recognized by FCI. Recognized by FCI in the Pinscher and Schnauzer - Molossoid and Swiss Mountain and Cattledogs group, in the Molossian type section.
Kennel Club Recognition
Compare breed recognition status of Bullmastiff, American Bulldog, and Great Pyrenees. Which has most recognition?
American Canine Registry
American Kennel Club
America's Pet Registry
Canadian Kennel Club
Dog Registry of America Inc.
Federation Cynologique Internationale
Kennel Club of Great Britain
North American Purebred Registry, Inc.
American Canine Association, Inc.
Australian National Kennel Council
Continental Kennel Club
National Kennel Club
New Zealand Kennel Club
American Canine Registry
America's Pet Registry
Dog Registry of America Inc.
North American Purebred Registry, Inc.
Continental Kennel Club
National Kennel Club
United Kennel Club
Backwoods Bulldog Club
Animal Research Foundation
American Rare Breed Association
American Bulldog Association
National American Bulldog Association
John D Johnson Bulldog Registry
American Bulldog Club Of Canada
All American Bulldog Club
American Canine Registry
American Kennel Club
America's Pet Registry
Canadian Kennel Club
Dog Registry of America Inc.
Federation Cynologique Internationale
Kennel Club of Great Britain
North American Purebred Registry, Inc.
American Canine Association, Inc.
Australian National Kennel Council
Continental Kennel Club
National Kennel Club
New Zealand Kennel Club
United Kennel Club

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