American Mastiff vs Mastiff vs Bullmastiff Comparison - Dog breed selector: AM Mastiff or Old English Mastiff or Bullie? Find the right dog for you

"Find similarities and differences between American Mastiff vs Mastiff vs Bullmastiff" Compare American Mastiff and Mastiff. Which is better: American Mastiff or Mastiff or Bullmastiff?

Size and Weight Price and Availability Trainability and Intelligence Personality and Temperament Activity and Playfulness Adaptability and Independence Bite Characteristics Health and Lifespan Energy and Activity Diet and Weight Management Allergies and Grooming Good With As a Working Dog Reproducibility Recognition Show differences only

Name	American Mastiff	Mastiff	Bullmastiff
Origins	United States	England	England
All Dog Breeds By Country Of Origin
Group	Working Dogs	Working Dogs	Working Dogs
Popularity Rank	447	28	51
Reviews	1	3	1
User Ratings

Common Names & Aliases Compare alternative names and nicknames used for American Mastiff, Mastiff, and Bullmastiff breeds.	AM Mastiff	Old English Mastiff English Mastiff	Bullie Bully
Breed Classification How do breed classifications differ between American Mastiff, Mastiff, and Bullmastiff? Compare their breeding categories.	Purebred	Purebred	Purebred

American Mastiff vs Mastiff vs Bullmastiff Size and Weight Comparison

Size Classification Compare size differences between American Mastiff, Mastiff, and Bullmastiff. Which breed is the largest?	Giant	Giant	Large
Weight Statistics How do weights compare between American Mastiff, Mastiff, and Bullmastiff? Compare adult weight ranges.	Male: 160-200 pounds (72-90 kg), Female: 140-180 pounds (63-81 kg)	Male: 150-250 pounds (68-113 kg), Female: 120-180 pounds (54-82 kg)	Male: 110-133 pounds (50–60 kg), Female: 100-120 pounds (45-55 kg)
Average Weight Which dog has a smaller / higher average weight?	Male: 180 pounds (81 kg), Female: 160 pounds (72 kg)	Male: 200 pounds (90.5 kg), Female: 150 pounds (68 kg)	Male: 121.5 pounds (50–60 kg), Female: 110 pounds (50 kg)
Height Which is taller, American Mastiff or Mastiff or Bullmastiff? American Mastiff vs Mastiff vs Bullmastiff height comparison:	28-36 inches (65-91 cm)	Male: 30 inches (76 cm), Female: 27.5 inches (70 cm)	Male: 25-27 inches (63–69 cm), Female: 24-26 inches (61–66 cm)
Average Height Which dog has a smaller / higher average height?	32 inches (78 cm)	Male: 30 inches (76 cm), Female: 27.5 inches (70 cm)	Male: 26 inches (63–69 cm), Female: 25 inches (61–66 cm)

American Mastiff vs Mastiff vs Bullmastiff Price and Availability Comparison

Price Range Compare puppy costs for American Mastiff, Mastiff, and Bullmastiff. Find price differences between these breeds.	$1000-$1500	$1200-$1500	$1200-$1500
Availability Which is easier to get, American Mastiff or Mastiff or Bullmastiff?	Rare: You may rarely see each other in everyday life, but you might catch a glimpse of each other at dog shows.	Very frequent: The Mastiff is quite easy to get.	Very frequent: The Bullmastiff is quite easy to get.

American Mastiff vs Mastiff vs Bullmastiff Trainability and Intelligence Comparison

Intelligence Rating Compare intelligence levels between American Mastiff, Mastiff, and Bullmastiff. Which breed ranks highest?	Smart: The American Mastiff dogs have great intelligence. See more.	Average: It takes patience to teach this breed any tricks or commands, but the effort is worth it. See more.	Low to average: This canine intelligence is not the brightest one. See more.
Smartest Dog Breeds
Training Difficulty Compare training difficulty levels between American Mastiff, Mastiff, and Bullmastiff. Which is easiest to train?	American Mastiff dogs are easy to train. See more.	Mastiff dogs are quite easy to train. See more.	Bullmastiff dogs are quite easy to train. See more.
Least Obedient Dog Breeds		Dog Breeds That Easy To Train
Watchdog Rating Compare watchdog abilities of American Mastiff, Mastiff, and Bullmastiff. Which breed is most alert?	American Mastiff dogs are good watchdogs. See more.	Mastiff dogs are one of the best watchdogs. See more.	Bullmastiff dogs are one of the best watchdogs. See more.
Territorial Protection Compare territorial instincts between American Mastiff, Mastiff, and Bullmastiff. Which breed is most protective?	American Mastiff dogs strongly protect their territory. See more.	Mastiff dogs are extremely protective guard dogs. See more.	Bullmastiff dogs are extremely protective guard dogs. See more.
Guard Dog Breeds List

American Mastiff vs Mastiff vs Bullmastiff Personality and Temperament Comparison

Personality Traits How do personalities differ between American Mastiff, Mastiff, and Bullmastiff? Compare temperaments.	Dignified Protective Courageous Affectionate Good-natured Calm	Protective Alert Courageous Intelligent Affectionate Loyal Cheerful	Protective Alert Powerful Courageous Docile Reliable Loyal Devoted Calm
Sensitivity Level Which dog is more sensitive? What's the difference?	American Mastiff dogs have an average emotional level and are not the most sensitive dog breed. See more.	Mastiff dogs have an average emotional level and are not the most sensitive dog breed. See more.	They are a little bit more sensitive than other dog breeds. See more.
Most Sensitive Dog Breeds		Less Sensitive Dog Breeds
Affection Level Which is the more affectionate dog breed: American Mastiff vs Mastiff vs Bullmastiff?	Average: American Mastiff dogs are average dogs regarding their affection level. See more.	High: Mastiff dogs are genuinely loyal, soft and gentle, loving, and affectionate dogs toward their handlers. See more.	Average: Bullmastiff dogs are average dogs regarding their affection level. See more.
Most Affectionate Dog Breeds
Social Needs American Mastiff vs Mastiff vs Bullmastiff social needs comparison:	American Mastiff dogs need for social interaction is average. See more.	Mastiff dogs need for social interaction is average. See more.	Bullmastiff dogs need for social interaction is average. See more.
Impulse to Wander or Roam Which dog has a greater roaming instinct?	American Mastiff dogs have average wanderlust potential. See more.	Mastiff dogs are not the biggest explorers. See more.	Bullmastiff dogs have average wanderlust potential. See more.
Prey Drive Which dog has a higher prey drive? Which can be better for hunting?	American Mastiff dogs have a higher impulse to chase and catch something than other dog breeds. See more.	Their prey drive is low. See more.	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. See more.
Dog Breeds With Low Prey Drive		Dog Breeds With High Prey Drive

American Mastiff vs Mastiff vs Bullmastiff Activity and Playfulness Comparison

Barking Frequency Compare barking frequencies of American Mastiff, Mastiff, and Bullmastiff. Which breed is most vocal?	Low to Average: The American Mastiff rarely barks. See more.	Low: The Mastiff barks none to minimal. See more.	Low: The Bullmastiff barks none to minimal. See more.
Quiet Dog Breeds That Don't Bark		Dog Breeds That Bark The Most
Playful Nature Compare playfulness levels between American Mastiff, Mastiff, and Bullmastiff. Which breed is most playful?	Average: American Mastiffs, like any other dog breed, like playing. See more.	Mastiffs are not the most playful dog breed. See more.	Bullmastiffs are not the most playful dog breed. See more.
Most Playful Dog Breeds
Apartment Adaptability Compare apartment suitability of American Mastiff, Mastiff, and Bullmastiff. 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 American Mastiff 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 Mastiff 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 Bullmastiff indoors.
The Worst Dog Breeds for Apartment Living		Apartment Friendly Dogs List

American Mastiff vs Mastiff vs Bullmastiff Adaptability and Independence Comparison

Lifestyle Adaptability Compare adaptability between American Mastiff, Mastiff, and Bullmastiff. Which breed is most flexible?	Average: American Mastiff dogs adapt to lifestyle changes and different living environments quite okay usually.	Mastiff dogs adapt very well to lifestyle changes and basically all living environments.	Average: Bullmastiff dogs adapt to lifestyle changes and different living environments quite okay usually.
Alone Time Tolerance Which dog can be left alone: American Mastiff or Mastiff or Bullmastiff?	Just like every puppy, they are prone to panic, cry, bark, whine when they left alone by their owner.	Just like every puppy, they are prone to panic, cry, bark, whine when they left alone by their owner.	Just like every puppy, they are prone to panic, cry, bark, whine when they left alone by their owner.

American Mastiff vs Mastiff vs Bullmastiff Bite Characteristics Comparison

Bite Risk Assessment Compare biting potential between American Mastiff, Mastiff, and Bullmastiff. Which has lowest bite risk?	Moderate ⏺ The American Mastiff has an average chance of biting somebody.	Moderate ⏺ The Mastiff has an average chance of biting somebody.	Low 🔽 The Bullmastiff has a low chance of biting somebody.
Mouthing Tendency Compare mouthing tendencies between American Mastiff, Mastiff, and Bullmastiff. Which uses mouth most during play?	American Mastiff dogs have a higher than average tendency to nip, chew, playbite, or herd people. See more.	Mastiff dogs have a higher than average tendency to nip, chew, playbite, or herd people. See more.	Bullmastiff dogs have an average tendency to nip, chew, playbite, or herd people. See more.
Bite Strength Rating Compare bite forces between American Mastiff, Mastiff, and Bullmastiff. Which has the strongest bite?	Above 400 PSI 🔼 American Mastiff bite force: The Strongest.	Above 400 PSI 🔼 Mastiff bite force: The Strongest.	Between 200 and 400 PSI ⏺ Bullmastiff bite force: Ordinary.
Dog Breeds With The Lowest Bite Force		Dog Breeds With the Strongest Bite Force

American Mastiff vs Mastiff vs Bullmastiff Health and Lifespan Comparison

Average Lifespan Compare life expectancies of American Mastiff, Mastiff, and Bullmastiff. Which breed lives longest?	10-12 years The average lifespan of American Mastiff: 11 years	10-12 years The average lifespan of Mastiff: 11 years	8-10 years The average lifespan of Bullmastiff: 9 years
Calculate dog years to human years by breed here
Climate Tolerance Compare weather adaptability between American Mastiff, Mastiff, and Bullmastiff. Which handles climate changes best?	Prefers average to warm weather conditions Different dogs have different preferences when it comes to weather conditions. See more.	Prefers average to cold weather conditions The Mastiff can adapt to well to cold weather conditions, some dogs even can be a good mountain dog. See more.	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. See more.
Health Concerns Compare health problems common in American Mastiff, Mastiff, and Bullmastiff. Which has fewer health issues?	The American Mastiff is a healthy breed, but there are certain health issues that you should check with your vet regularly.	Mastiffs are commonly healthy dogs.	Very healthy dog breed.
Healthiest Dog Breeds
Vet Care Frequency Which one may need more or less veterinary visits?	Average The American Mastiff should have a complete physical check-up at least once per year.	Rare The Mastiff should have a complete physical check-up at least every 12-18 months (but preferably once per year).	Rare The Bullmastiff should have a complete physical check-up at least every 12-18 months (but preferably once per year).
Longest Living Dog Breeds
Health Problems Which one has more or less genetic/health problems: American Mastiff vs Mastiff vs Bullmastiff? What are the allergies, genetic diseases and concerns for them? American Mastiff vs Mastiff vs Bullmastiff health problems comparison:	Cataracts Hip Dysplasia Cancer Hypothyroidism Progressive retinal atrophy (PRA) Bloat Entropion Skin Infections Skin Irritation Ectropion Elbow Dysplasia Arthritis Cystine Urolithiasis Drooling Exposure Keratopathy Syndrome Heart Disease Osteoarthritis Retinal Dysplasia Snoring	Hip Dysplasia Cancer Progressive retinal atrophy (PRA) Bloat Seizures Cystinuria	Cancer Hypothyroidism Progressive retinal atrophy (PRA) Heart Problems Entropion Kidney Issues Hemangiosarcoma Lymphosarcoma Osteosarcoma

American Mastiff vs Mastiff vs Bullmastiff Energy and Activity Comparison

Energy Rating Compare energy levels between American Mastiff, Mastiff, and Bullmastiff. Which breed is most active?	American Mastiff dogs have a lower energy level than other dogs.	Mastiff dogs have a lower energy level than other dogs.	Bullmastiff dogs have a lower energy level than other dogs.
Low-Energy Dog Breeds		High-Energy Dog Breeds
Activity Requirement / Exercise Need American Mastiff vs Mastiff vs Bullmastiff exercise need comparison. Which dog needs more activity? Which dog needs the most exercise: American Mastiff or Mastiff or Bullmastiff? Which dog needs the most walking? Which dog is the laziest?	American Mastiff dogs exercise need is minimal.	Mastiff dogs exercise need is minimal.	Bullmastiff dogs exercise need is minimal.
Sleeping Need Which one sleeps the least/most: American Mastiff or Mastiff or Bullmastiff?	American Mastiff dogs like sleeping so they do sleep a lot.	Mastiff dogs like sleeping so they do sleep a lot.	Bullmastiff dogs like sleeping so they do sleep a lot.
Dog Breeds That Sleep A Lot

American Mastiff vs Mastiff vs Bullmastiff Diet and Weight Management Comparison

Obesity Tendency Compare weight gain tendencies between American Mastiff, Mastiff, and Bullmastiff. Which is most prone to obesity?	Average: The American Mastiff has an average risk for obesity. See more.	Average to High: If you don't pay attention to the Mastiff's weight, he can easily gain weight. See more.	High: The Bullmastiff breed has a strong tendency to be overweight. See more.
Dog Breeds Prone To Obesity
Food Consumption Compare food requirements between American Mastiff, Mastiff, and Bullmastiff. Which needs most food?	6 to 8 cups of high-quality dry food a day, divided into two meals.	8 to 10 cups of high-quality dry food a day, divided into two meals	3 to 4.5 cups of high-quality dry food a day, divided into two meals.
Dog Breeds That Eat A Lot

American Mastiff vs Mastiff vs Bullmastiff Allergies and Grooming Comparison

Allergy Friendliness Compare hypoallergenic qualities of American Mastiff, Mastiff, and Bullmastiff. Which is best for allergy sufferers?	No See more.	No See more.	No See more.
Hypoallergenic Dog Breeds
Coat Colors Compare color variations between American Mastiff, Mastiff, and Bullmastiff. What colors are available?	White Fawn Brindle Apricot	Fawn Brindle Apricot	Red Fawn Brindle
Grooming Requirements Compare grooming needs between American Mastiff, Mastiff, and Bullmastiff. Which requires most maintenance?	Average: The American Mastiff requires average grooming effort. See more.	Easy to groom: The Mastiff doesn't require a lot of grooming. See more.	Easy to groom: The Bullmastiff doesn't require a lot of grooming. See more.
Low-Maintenance Dog Breeds		High-Maintenance Dog Breeds
Drooling Tendency Compare drooling tendencies between American Mastiff, Mastiff, and Bullmastiff. Which drools least?	The American Mastiff is a big drooler, so if you're disgusted by slobber spots on your clothes, you should choose a dog from another breed. See more.	The Mastiff is a big drooler, so if you're disgusted by slobber spots on your clothes, you should choose a dog from another breed. See more.	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. See more.
Stinkiness Rating Compare odor levels between American Mastiff, Mastiff, and Bullmastiff. Which has least natural smell?	High 🔼 The American Mastiff has a high chance of bad smell.	High 🔼 The Mastiff has a high chance of bad smell.	High 🔼 The Bullmastiff has a high chance of bad smell.
Coat Characteristics Compare coat types between American Mastiff, Mastiff, and Bullmastiff. How do their fur characteristics differ?	Straight	Dense	Rough
Bathing Needs Compare bathing needs between American Mastiff, Mastiff, and Bullmastiff. Which requires most frequent baths?	3-4 weeks More often than average. These dog coats tend to be longer, softer, and oilier than short-haired breeds. See more.	4-6 weeks Average. Experts recommended at least every 4-6 weeks for this family pup. See more.	4-6 weeks Average. Experts recommended at least every 4-6 weeks for this family pup. See more.
Shedding Level Who sheds more American Mastiff or Mastiff or Bullmastiff? American Mastiff or Mastiff or {name3 shedding:	American Mastiff dogs shed moderately. See more.	Mastiff dogs shed moderately. See more.	Bullmastiff dogs shed moderately. See more.
Low-Shedding Dog Breeds		Dog Breeds That Shed The Most

American Mastiff vs Mastiff vs Bullmastiff Good With Comparison

Child Compatibility Compare child-friendliness between American Mastiff, Mastiff, and Bullmastiff. Which is best with kids?	American Mastiff dogs are kid-friendly dogs.	Mastiff dogs are very kid-friendly dogs.	Bullmastiff dogs are kid-friendly dogs.
Kid-Friendly Dog Breeds
Pet Compatibility Which dog breeds get along well with other animals/pets?	American Mastiff dogs are generally with other pets.	Mastiff dogs are one of the friendliest dog breeds.	Bullmastiff dogs do best when they’re the only pet at the family.
Stranger Friendly Which dog is more stranger friendly American Mastiff or Mastiff or Bullmastiff? Which dog is more friendly?	American Mastiff dogs are average friendly towards strangers.	Mastiff dogs are average friendly towards strangers.	Bullmastiff dogs are average friendly towards strangers.
Dog Breeds That Are Aloof With Strangers		Dog Breeds That Are Friendly To Strangers
Cat Friendly Which dog is more cat friendly American Mastiff or Mastiff or Bullmastiff?	American Mastiff dogs are average friendly towards cats.	Mastiff dogs are very cat-friendly dogs.	Bullmastiff dogs are not cat-friendly dogs.
Dog Breeds That Get Along Well With Cats
Dog Friendly Which dog is more dog friendly American Mastiff or Mastiff or Bullmastiff?	American Mastiff dogs are average friendly towards other dogs.	Mastiff dogs are average friendly towards other dogs.	Bullmastiff dogs are not dog-friendly.
Good For First Time Owners Which dog is good for the first-time owners: American Mastiff vs Mastiff vs Bullmastiff?	Yes American Mastiff dogs are good for novice owners, due to their easy-going personality.	Yes Mastiff dogs are good for novice owners, due to their easy-going personality.	Yes Bullmastiff dogs are good for novice owners, due to their easy-going personality.
Office Friendly Which one fits better in the office?	No American Mastiff is not the best dog breed for office environment.	No Mastiff is not the best dog breed for office environment.	No Bullmastiff is not the best dog breed for office environment.
Senior Citizens Friendly Which dog is good for elderly people?	American Mastiffs are usually recommended for elderly people.	Mastiffs are one of the best breeds for elderly people.	Bullmastiffs are usually recommended for elderly people.

American Mastiff vs Mastiff vs Bullmastiff As a Working Dog Comparison

Service Dog Capability Compare service dog potential between American Mastiff, Mastiff, and Bullmastiff. Which is best suited for service work?	Not really This breed generally not used as a service dog. See more.	Not really This breed generally not used as a service dog. See more.	Not really This breed generally not used as a service dog. See more.
Most Popular Service Dog Breeds
Therapy Work Suitability Compare therapy dog potential between American Mastiff, Mastiff, and Bullmastiff. Which excels in therapy work?	Not really This breed is generally not used as a therapy dog. See more.	Not really This breed is generally not used as a therapy dog. See more.	Yes This breed makes a perfect therapy dog. See more.
Therapy Dog Breeds
Scent Detection Ability Compare detection capabilities between American Mastiff, Mastiff, and Bullmastiff. 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 American Mastiff, Mastiff, and Bullmastiff. 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 American Mastiff, Mastiff, and Bullmastiff. Which is best suited for water work?	Not really American Mastiff breed usually doesn't like being on a boat. See more.	Not really Mastiff breed usually doesn't like being on a boat. See more.	Not really Bullmastiff breed usually doesn't like being on a boat. See more.
Draft Work Capability Compare cart pulling abilities between American Mastiff, Mastiff, and Bullmastiff. Which is best for draft work?	Yes A drafting dog or draft dog is a dog bred and used for cart pulling. See more.	Yes A drafting dog or draft dog is a dog bred and used for cart pulling. See more.	Yes A drafting dog or draft dog is a dog bred and used for cart pulling. See more.
Military Service Background Compare military service history of American Mastiff, Mastiff, and Bullmastiff. Which has most military use?	Not really In history, this breed was not really used for combat dog.	Not really In history, this breed was not really used for combat dog.	Not really In history, this breed was not really used for combat dog.

American Mastiff vs Mastiff vs Bullmastiff Reproducibility Comparison

Puppy Litter Size Compare typical litter sizes of American Mastiff, Mastiff, and Bullmastiff. Which has most puppies?	2-5 puppies	3-5 puppies	4-13 puppies, average 8
Dog Name Generator – Find A Perfect Name For Your Puppy
Pregnancy Duration Compare gestation periods of American Mastiff, Mastiff, and Bullmastiff. Any breeding differences?	60-64 days See more.	60-64 days See more.	60-64 days See more.
Breeding Frequency Compare breeding intervals between American Mastiff, Mastiff, and Bullmastiff. 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.

American Mastiff vs Mastiff vs Bullmastiff Recognition Comparison

AKC Classification Compare AKC groups for American Mastiff, Mastiff, and Bullmastiff. How are they classified?	Not recognized by the American Kennel Club.	Recognized by the American Kennel Club in 1885 as a Working breed.	Recognized by the American Kennel Club in 1934 as a Working breed.
FCI Classification Compare FCI groups for American Mastiff, Mastiff, and Bullmastiff. How are they classified internationally?	Not recognized by FCI.	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 American Mastiff, Mastiff, and Bullmastiff. Which has most recognition?	No data available	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	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

Popular Dog Compares

Despite the best intentions, there may be errors. If you find one, please let us know and we will fix it as soon as possible. Contact us here.

Rate This Comparsion - American Mastiff vs Mastiff vs Bullmastiff

Reviews