At first glance, the Broholmer and Bullmastiff may seem like similar dogs. Both are large, powerful, short-coated mastiff breeds with a history of guarding. But they come from different countries, were developed for different roles, and can be quite different to find in the United States.
The Broholmer is a rare Danish breed known for its calm, watchful nature, while the Bullmastiff was developed in England to protect estates from poachers. Both can be devoted family companions, but their size, strength, and guarding backgrounds deserve careful consideration.
If you’re considering one of these gentle giants, it helps to look beyond their impressive appearance and understand what daily life with each breed really involves.
Quick Answer: The Broholmer and Bullmastiff are both large, powerful dogs with guarding histories. The Broholmer originated in Denmark and is known for its calm, friendly, and watchful temperament. The Bullmastiff originated in England and is known for loyalty, affection, and protective instincts. Both require responsible ownership, early socialization, consistent training, and careful attention to health and handling.
Last Updated: October 20, 2026
Broholmer vs. Bullmastiff at a Glance
Broholmer
Also Known As: Danish Mastiff
Historical Role: Estate and farm guardian; roots in stag hunting
Temperament: Calm, friendly, watchful
Coat: Short with an undercoat
U.S. Availability: Rare; AKC Foundation Stock Service
Bullmastiff
Historical Role: Estate guardian developed to assist gamekeepers
Temperament: Loyal, affectionate, protective
Coat: Short and dense
U.S. Availability: More established than the Broholmer
Important Needs: Socialization, training, and safe handling
Two Gentle Giants With Different Histories
Although both breeds share mastiff ancestry and guarding backgrounds, their histories reveal important differences in how they were developed and the roles they traditionally performed.
The Broholmer: Denmark’s Watchful Companion
The Broholmer, also called the Danish Mastiff, is a large breed originating in Denmark. Historically, Broholmers guarded estates and farms, and the breed also has roots in stag hunting.
The modern breed standard describes the Broholmer as calm, friendly, good-tempered, and watchful. This combination of characteristics reflects its traditional role as a substantial guardian that could remain attentive without being constantly active.
Broholmers remain uncommon in the United States. The American Kennel Club lists the breed in its Foundation Stock Service, a program that maintains records for breeds not yet fully recognized by the AKC.
The Bullmastiff: England’s Estate Guardian
The Bullmastiff was developed in England to assist gamekeepers in protecting estates from poachers. Its powerful build and guarding instincts reflect this demanding historical role.
Today, Bullmastiffs are often valued for their loyalty and affection toward family members. However, their size and protective instincts make early socialization, clear boundaries, and consistent training particularly important.
Bullmastiffs are more established in the United States than Broholmers, which may make them easier to find. However, greater availability should never replace careful research into a breeder’s practices or an individual dog’s temperament.
Broholmer vs. Bullmastiff Temperament
Both breeds can be devoted companions, but their temperaments should be considered alongside their guarding backgrounds, individual personalities, and training needs.
Broholmer Personality
The Broholmer is generally characterized as calm, friendly, and watchful. Its traditional role as an estate guardian suggests the importance of confidence, stability, and attentiveness. Individual dogs may differ in sociability and reactions to unfamiliar situations.
Bullmastiff Personality
The Bullmastiff is known for loyalty, affection, and a strong guarding background. Many form close relationships with their families, but responsible socialization and training are important for managing their strength and responses to unfamiliar people or situations.
Breed descriptions offer useful guidance, but they are not guarantees. Genetics, socialization, past experiences, health, and the individual dog’s temperament all influence behavior.
Size, Grooming, and Everyday Care
Both the Broholmer and Bullmastiff are very large, muscular dogs. Broholmers can be especially tall, while Bullmastiffs are generally shorter on average but remain heavy and powerful.
Neither breed has a long coat that requires extensive trimming. The Broholmer has a short coat with an undercoat, while the Bullmastiff has a short, dense coat.
Both breeds still require routine brushing, nail trimming, dental care, appropriate exercise, and regular veterinary visits.
What Large-Dog Ownership Really Involves
- Leash handling: Owners need to manage a strong dog safely during walks and unexpected distractions.
- Transportation: Vehicles must accommodate the dog’s size comfortably and securely.
- Home environment: Large dogs need sufficient space to move, rest, and interact safely.
- Guest introductions: Calm greetings and reliable manners are important around visitors.
- Routine care: Food, bedding, medications, and veterinary services can cost more for very large dogs.
- Physical safety: Even a friendly dog may accidentally knock over a child or an older adult.
Training and Socialization: Why They Matter
Training is important for every dog, but it becomes especially valuable when a dog is large enough to overpower its handler or unintentionally injure someone.
Both Broholmers and Bullmastiffs benefit from early socialization and consistent, reward-based training. Positive experiences with different people, environments, sounds, and situations can help develop confidence and appropriate behavior.
Owners should prioritize reliable everyday manners rather than expecting guarding instincts alone to determine how the dog behaves.
Essential Training Priorities
- Loose-leash walking: Teach polite leash behavior before the dog reaches full adult strength.
- Recall: Practice responding when called in progressively more distracting environments.
- Calm greetings: Prevent jumping and overly enthusiastic approaches to visitors.
- Socialization: Provide positive, controlled exposure to everyday experiences.
- Handling: Teach cooperation with grooming, veterinary examinations, and routine care.
- Impulse control: Reward calm, appropriate behavior around exciting situations.
Health and Responsible Breeding
Health screening is an important consideration when choosing either breed. Large dogs may face orthopedic and other health challenges, making responsible breeding practices and preventive veterinary care especially valuable.
When speaking with a breeder, request documented health screening results rather than relying on verbal assurances that the parents are healthy.
For Bullmastiffs, the American Kennel Club lists several evaluations among the breed club’s recommended health tests.
Bullmastiff Health Screening to Ask About
- Hip evaluations
- Elbow evaluations
- Cardiac examinations
- Eye examinations
- Thyroid evaluation
For Broholmers, ask breeders which health screenings are recommended for their breeding dogs and request the relevant results. Breed-specific recommendations may differ.
A veterinarian can help prospective owners understand health screening results, inherited risks, and appropriate preventive care.
Learn more about the importance of responsible dog breeding and the warning signs associated with puppy mills and backyard breeders.
Broholmer vs. Bullmastiff: Key Differences
| Characteristic | Broholmer | Bullmastiff |
|---|---|---|
| Origin | Denmark | England |
| Historical Role | Estate and farm guardian | Gamekeeper’s estate guardian |
| Temperament | Calm, friendly, watchful | Loyal, affectionate, protective |
| Build | Large, often taller | Powerful, generally shorter and stockier |
| Coat | Short with undercoat | Short and dense |
| U.S. Availability | Rare | More established |
| Ownership Priority | Responsible sourcing and safe handling | Socialization, training, and safe handling |
Which Breed Could Be Right for You?
Choosing between a Broholmer and a Bullmastiff should involve more than appearance, rarity, or breed popularity. Your experience, living environment, daily routine, and ability to manage a very large dog all matter.
The Broholmer May Appeal to You If…
- You are interested in a rare Danish breed.
- You appreciate a calm, watchful temperament.
- You are prepared for the responsibilities of owning a very large dog.
- You are willing to invest time researching and locating a responsible breeder.
The Bullmastiff May Appeal to You If…
- You want a devoted family companion.
- You understand the responsibilities associated with guarding breeds.
- You can provide early socialization and consistent training.
- You are comfortable managing a powerful dog throughout its life.
Neither breed is automatically the right choice for every household. The individual dog’s temperament, health, age, upbringing, and compatibility with your lifestyle should guide your decision.
Our guide to the best dog breeds for different lifestyles can help you explore other possibilities.
A Reminder About Buying Puppies Responsibly
Finding a healthy, well-socialized puppy starts with choosing a responsible source. Avoid purchasing puppies sight unseen, from unverified online sellers, or through pet stores that cannot provide transparent information about the breeding dogs and their care.
A responsible breeder should welcome questions about health testing, temperament, living conditions, and socialization. They should also be willing to discuss whether the breed is suitable for your household.
Be cautious of sellers who pressure you to send immediate payments, refuse reasonable verification, or cannot provide documentation of recommended health screening.
Adoption is another option worth exploring. Visit our guide to finding dogs for adoption near you to learn more.
Frequently Asked Questions About Broholmers and Bullmastiffs
What is the main difference between a Broholmer and a Bullmastiff?
The Broholmer originated in Denmark as an estate and farm guardian, while the Bullmastiff was developed in England to help gamekeepers protect estates. Their histories, typical appearance, and availability in the United States differ.
Are Broholmers and Bullmastiffs good family dogs?
Both may become devoted family companions in suitable households. Their size, strength, individual temperament, and guarding backgrounds make training, supervision, and appropriate socialization important.
Which breed is bigger?
Broholmers can be taller on average, while Bullmastiffs are generally shorter and heavily built. Individual size varies, so prospective owners should meet adult dogs whenever possible.
Do Broholmers and Bullmastiffs require a lot of grooming?
Neither breed has a long coat requiring extensive trimming. Both benefit from routine brushing, nail care, dental hygiene, and regular health checks.
Are Broholmers rare in the United States?
Yes. Broholmers are uncommon in the United States and are listed in the AKC Foundation Stock Service rather than being fully AKC recognized.
What health testing should I ask about?
For Bullmastiffs, recommended screening includes hip and elbow evaluations, cardiac and eye examinations, and thyroid evaluation. For Broholmers, ask breeders about the health screening recommendations relevant to their breed and breeding dogs.
Final Thoughts: Two Gentle Giants, Two Different Histories
The Broholmer and Bullmastiff share impressive size, strength, and a history of guarding, but they are not interchangeable breeds. Their different origins, temperaments, and availability make each worth researching carefully.
Whether you’re drawn to the rare Danish Broholmer or the loyal English Bullmastiff, the most important question is whether you can provide the training, companionship, care, and safe environment that a powerful dog needs throughout its life.
Choose the Match, Not Just the Look
The right dog is not simply the biggest, rarest, or most impressive breed. It is the individual dog whose temperament, care requirements, and companionship needs fit the life you can realistically provide.
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