great dane bullmastiff mix

Bull Daniff (Great Dane & Bullmastiff Mix) Info, Pictures, Facts

Bull Daniff (Great Dane & Bullmastiff Mix) Info, Pictures, Facts

Are you looking for a loyal, loving dog that is both gentle and strong? Look no further than the Great Dane Bullmastiff Mix. This special breed of canine combines two impressive and well-known breeds: the delicate beauty of the Great Dane and bulldog-like strength of a Bullmastiff.

These remarkable hybrid dogs are intelligent, eager to please, protective yet affectionate – making them perfect family pets. Whether you’re an experienced dog owner or a first time pet parent, this lovable mix has something to offer everyone! Read on to learn all about this truly unique breed so you can decide if it's right for your home.

What Is A Great Dane Bullmastiff Mix?

The Great Dane Bullmastiff mix is an affectionate and loyal crossbreed. This unique canine combination is the result of crossing two robustly-built parent breeds: The Great Dane and the Bullmastiff.

These dogs are easy to spot thanks to their huge size; they have powerful chests and well-defined muscles. They typically weigh anywhere between 70 and 120 pounds, making them one of the biggest dogs around - great for pet owners who appreciate a gentle giant in their lives.

Great Dane

Great Danes are a giant breed of dogs originally used for hunting big game such as wild boar and deer. One of the most recognizable characteristics of this breed is their height; they can easily stand over 30 inches at the shoulder.

Generally Great Danes have a short lifespan, with an average age range falling between 6-8 years. They are known to be gentle giants, which makes them a great family pet. Great Danes have different coat types, ranging from fawn, brindle, blue, black and more.

black and white great dane


The Bullmastiff is a large dog breed that values loyalty and strength above all else. They are known for their impressive size and power, with males typically growing up to 27 inches tall, weighing up to 130 pounds. This strong yet gentle breed makes a fantastic companion to any family, offering fierce protection but always keeping an even temperament.

They also tend to form extremely close bonds with their owners and are extraordinarily obedient, willing to learn whatever commands you have in mind. The Bullmastiff is the perfect blend of strength, intelligence, and loyalty, making them one of the most beloved canine companions around.

Great Dane Bullmastiff Mix Personality & Temperament

A Great Dane Bullmastiff mix personality is a unique combination of the two large and independent breeds. These hearty hybrid dogs are known for their loving and gentle nature as well as their loyal and protective tendencies.

Great Danes have been bred over the generations to be calm yet dignified, while Bullmastiffs are slightly more alert and guard-oriented. Generally, Great Dane Bullmastiff mixes make wonderful family pets who love attention and enjoy plenty of snuggles.

They will happily take part in cuddle sessions with their owners but tend to display more independent behavior if they feel overloaded by attention. This mixed breed truly has the best of both worlds when it comes to affectionate companionship mixed with protective instincts.

Great Dane Bullmastiff Mix Appearance & Grooming


A Great Dane Bullmastiff Mix breed is a unique canine, boasting an impressive combination of characteristics from both breeds. This powerful pooch favors its Great Dane half, typically standing between 22 and 28 inches tall and weighing anywhere from 100 to 160 pounds.

The coat tends to be short to medium in length and heavily sheds throughout the year. Common colors tend to vary widely with black, white, tan, fawn, reddish-brown, and brindle all being prevalent.

Great Dane Bullmastiff Mixes often possess a muscular build and adorably floppy ears that give them a playful aura. These dogs also generally have strong jawlines and wide chests while usually having one of their parent’s characteristic wrinkles around their face and neck regions.


Thanks to their short coats, it's fairly easy to maintain the Great Dane Bullmastiff Mix's fur through weekly brushing sessions - this will help to prevent mats and tangles from forming, as well as reduce shedding throughout the home.

Regular bathing is also warranted to keep bacteria at bay; however, too much bathing can lead to dry skin, so it's best to stick with no more than once every few months.

The ears should be checked regularly for wax buildups and debris, while nails must be trimmed when they become overly long. Lastly, regular teeth brushing is essential to keep your dog healthy. With proper grooming, your Great Dane Bullmastiff mix can stay healthy and look great!

tan and white great dane bullmastiff mix standing outside

What Is The Lifespan Of A Great Dane Bullmastiff Mix?

The Great Dane Bullmastiff mix typically have life spans of 10 to 12 years, though this can vary significantly based on individual cases. While it's impossible to guarantee a lifespan for any breed, most Great Dane Bullmastiff mixes have been found to live about as long as either of their parent breeds. Of course, this can be affected further by the specifics of any individual’s genetics as well as their diet and level of exercise over their lifetime.

Great Dane Bullmastiff Mix General Health & Common Conditions

Great Dane Bullmastiffs can make excellent, loyal family pets and should be considered if you are looking for a large mixed breed dog. But it is important to know the characteristics of this combination in order to keep them happy and healthy.

Thankfully, they tend to maintain generally good health when raised properly, which means plenty of exercise and a well-balanced diet. On the other hand, this breed can be affected by the following health conditions:

Hip and Elbow Dysplasia

Hip and elbow dysplasia are two of the most common health problems that affect Great Dane Bullmastiffs. Both of these conditions are caused by a malformation of the hip or elbow joint, which can lead to pain and lameness. Hip and elbow dysplasia are both hereditary conditions, so it is important to choose a breeder who has clearances for both conditions.

Cardiac Disease

Cardiac disease is another common health problem in Great Dane Bullmastiffs. The most common type of cardiac disease in this breed is called dilated cardiomyopathy, which is a condition that causes the heart muscle to weaken and fail. Dilated cardiomyopathy can be fatal, so it is important to have your dog's heart checked regularly by a veterinarian.

great dane bullmastiff puppy on a bed

Gastric Dilatation Volvulus (GDV)

Gastric dilatation volvulus, or GDV, is a condition that affects the stomach and can be very dangerous for dogs. GDV occurs when the stomach twists on itself, trapping gas and fluid inside.

This can cause the stomach to bloat, which can be fatal if not treated immediately. GDV is more common in large breeds like the Great Dane Bullmastiff, so it is important to be aware of the signs and symptoms.


Allergies are a common health problem in Great Dane Bullmastiffs. The most common allergies in the breed are environmental allergies, such as pollen, dust, and mold spores. Treatment for allergies typically involves avoidance of the allergen and medication to control the symptoms


Bloat is a condition that affects the stomach and can be very dangerous for dogs. Bloat occurs when the stomach fills with gas and fluid and then twists on itself. This can cause the stomach to swell, which can be fatal if not treated immediately. Bloat is more common in large breeds like the Great Dane Bullmastiff, so it is important to be aware of the signs and symptoms.

Great Dane Bullmastiff Mix Exercise Needs

If you're the proud human companion of a Great Dane Bullmastiff Mix, then you know they can grow to be quite large and full of energy. Knowing how much exercise this dog needs daily can help ensure they stay healthy and happy. Generally, these dogs need at least two hours of physical activity every day that includes stimulation like running, walking and playing games.

Without enough exercise, these dogs become destructive and can develop behavior issues as well as a wide range of health problems from obesity to high blood pressure. The best way to keep your Great Dane Bullmastiff Mix content and healthy is with plenty of daily playtime activities.

mixed great dane bullmastiff outside

How Much Training Does A Great Dane Bullmastiff Mix Need?

This hybrid breed generally requires quite a bit of training in order to stay well behaved. As with any breed, it's important to start training early on, teaching basic commands and socializing the pup so that they understand their place in the household hierarchy.

Walking your Great Dane Bullmastiff Mix on a regular basis is essential as it not only keeps them physically fit, but provides daily mental stimulation as well. Consistency is key when training this breed. It may need more repetition when learning new tricks or commands than other breeds and will benefit from positive reinforcement like treats or praise when they get it right.

Great Dane Bullmastiff Mix Nutrition & Feeding

For any Great Dane Bullmastiff Mix owner, proper nutrition and feeding is essential for the health of their dog. As with any dog breed, good quality food should be chosen carefully for it to be able to provide the right nutrients for your particular pup. Since this hybrid breed does have a larger size than most breeds, it is recommended that they consume two or possibly three meals per day.

This can help maintain a healthy weight and energy level. Consider using adult large-breed specific dry kibble as your base source of protein and carbohydrates. Additionally, fresh vegetables like carrots or green beans as well as unseasoned canned pumpkin can make an excellent supplement to help balance out their diet.

great dane bullmastiff with a red collar looking at camera

Do Great Dane Bullmastiffs Get Along With Children & Other Pets?

For those wanting an affectionate, family-friendly pet, the Great Dane Bullmastiff is a great choice. Generally, this type of dog gets along well with young children, as they were originally bred to be guard dogs and are very loyal and protective of their families.

They usually have gentle dispositions and enjoy playing with kids while also being big enough to handle their energy levels. In addition to being good around children, the Great Dane Bullmastiff can also typically get along with other pets in the house such as cats and small animals.

Of course this goes both ways; cats or smaller creatures must be properly handled as well to ensure they haven't misunderstood the Great Dane Bullmastiff's playfulness for something more aggressive. With proper socialization and training, these giants can become great companions for the whole family that will provide lots of love!

Breed Review: Great Dane Bullmastiff Mix

For those looking for a large, loyal and protective companion, the Great Dane Bullmastiff mix is an ideal choice. These mixes have all the active characteristics of a Great Dane coupled with the steadfast loyalty and affection of a Bullmastiff.

Due to their sizable frame and alert demeanor, Great Dane Bullmastiffs can serve as excellent guard dogs for families or property owners. They are very intelligent and learn quickly, however their tenderhearted personality necessitates that owners be consistent but gentle in training them to commands.

When treated kindly and thoroughly socialized from an early age, these majestic creatures reward owners with abundant love, energy and companionship throughout their relatively long lives. Thanks for reading and we hope this article was informative and helpful in your search for the perfect pooch!

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