Giant Dog Breeds

Giant dog breeds are generally classified based on average adult height and weight ranges.

Giant breeds weigh over 100 lbs. Their development happens in two phases—bone growth first, followed by muscle. They reach adulthood around 24 months. Lean growth is important to avoid joint and bone disorders. Calcium supplements should be avoided as they may contribute to deformities.

Labernard
Labernard

The Labernard is a friendly, affectionate, and sociable breed, drawing its personality from its parent breeds: the energetic Labrador Retriever and the gentle Saint Bernard, both of which were originally developed for work purposes. This breed falls into the large to giant category and requires a firm and consistent training approach due to its stubborn nature; therefore, starting training early is recommended. Labernards come in a range of colors, such as white, yellow, brown, tan, black, and red, and possess a short, dense coat with a thick double layer that can lead to discomfort in warmer climates. They shed moderately, so regular grooming is essential to keep their coat healthy. With a strong need for physical activity, the Labernard makes an excellent companion for active families who enjoy outdoor pursuits.

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Grand Bleu De Gascogne
Grand Bleu De Gascogne

The Grand Bleu de Gascogne is a large, ancient breed believed to have descended from dogs kept by the Gauls and Phoenicians. Recognized for their historical importance and genetic contributions, they are one of the two primary breeds that have influenced the development of many modern hound types over the last thousand years or more. These dogs are adept hunters, known for their slow and steady approach, yet they are methodical and efficient, having been used for centuries to track significant game like deer, wolves, and boar—aptly reflected in their name, "grand," which denotes their impressive targets. Traditionally, they have hunted in packs, which has cultivated a friendly nature and a remarkably strong, almost musical voice that facilitates communication among pack members and with hunters. With a well-balanced temperament, they are typically sociable and amiable at home, but they display a lively enthusiasm when out in the field. Regrettably, the decline of pack hunting—partly due to evolving needs and the expenses associated with such practices—has made the Grand Bleu de Gascogne a rare breed. Their population has significantly decreased during periods of conflict and continues to diminish in contemporary times. However, passionate breed advocates are striving to sustain their numbers, albeit on a small scale. While this breed originates from France, its near-cult following in the United States has led many to perceive that they are more prevalent and favored there than anywhere else in the world.

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Gran Mastin de Borinquen
Gran Mastin de Borinquen

The Gran Mastin de Borinquen, a breed native to Puerto Rico, has traditionally been used as a guard dog and has participated in blood sports. Believed to have originated in the 16th century, this ancient breed is a descendant of the Spanish Mastiff and various local canines. While their primary role has been protection, they have also been involved in dog fighting and hunting wild boar. Their tenacious character has made them a favored choice in Puerto Rico, but their sometimes unpredictable behavior may not be ideal for families with young children. Known for their loyalty, the Gran Mastin de Borinquen requires a strong and assertive owner to ensure they are properly managed.

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Caucasian Ovcharka
Caucasian Ovcharka

This ancient breed exudes a sense of strength and authority. Hailing from the rugged Caucasus Mountains, which lie between Europe and Asia, it is known by several names, the most common being the Caucasian Ovcharka or Caucasian Shepherd. These large dogs were originally bred to protect sheep from various threats, both human and animal. As a result, the temperament of the Caucasian Mountain Dog can vary widely. They can be affectionate and gentle with their families or, conversely, display aggressive and unruly behavior. The key to their demeanor often lies in the owner's approach to training, which should strike a balance between firmness and compassion. While their protective nature can be appealing, this breed may not be the best choice for inexperienced dog owners. Although these large, fluffy dogs were initially intended for guarding flocks, they are increasingly being kept as family pets. Nonetheless, their aggressive and protective instincts have historically hindered their popularity. As interest in the Caucasian Mountain Dog continues to rise, it is likely that selective breeding efforts will focus on moderating their overly protective traits.

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Bully Bordeaux
Bully Bordeaux

The Bully Bordeaux is a hybrid breed that emerges from the crossbreeding of the Bull Mastiff and the Dogue de Bordeaux. This breed is categorized as giant-sized and predominantly exhibits traits inherited from its Bull Mastiff ancestry. Renowned for its affectionate nature and compatibility with children, the Bully Bordeaux flourishes in a family environment and prefers to spend time indoors with its human companions. Although regular exercise is necessary, this dog enjoys participating in activities alongside its owner. Its coat is coarse and requires minimal upkeep, simplifying the grooming process. Primarily a companion animal, this large dog often seeks to snuggle in its owner's lap whenever the opportunity arises.

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Greater Swiss Mountain Dog
Greater Swiss Mountain Dog

The Greater Swiss Mountain Dog, commonly known as the Swissy, is a gentle and affectionate breed that delights in making its owners happy. Although they are intelligent and can sometimes be a bit headstrong, their steadfast loyalty more than makes up for these tendencies. Generally, they are calm around children, other animals, and friendly guests, but they also make excellent watchdogs thanks to their sharp awareness. Originating from Switzerland, this breed has a rich history that dates back nearly 2,000 years, making it one of the oldest dog breeds in the country. Originally developed for herding, guarding, and draft work, the Greater Swiss Mountain Dog has transformed into a versatile companion, thriving in various activities such as competitive obedience, carting, tracking, and protection.

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New Rottland
New Rottland

The New Rottland is an extraordinary hybrid breed that merges the traits of the Newfoundland and the Rottweiler. Both parent breeds are known for their large size and gentle demeanor, making them excellent family companions while also serving as dependable guard dogs due to their impressive stature and steadfast loyalty. Typically, these dogs weigh approximately 130 pounds and stand between 28 to 30 inches tall. The New Rottland boasts a dense, medium-length coat that often displays a mix of black, brown, fawn, and cream, reflecting the unique coloration of the Rottweiler combined with the Newfoundland's fur. Renowned for their intelligence and playful disposition, these dogs thrive on interaction with children and other pets, relishing activities such as fetching balls and sticks.

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Mountain Mastiff
Mountain Mastiff

The Mountain Mastiff is a hybrid breed resulting from the combination of a Bernese Mountain Dog and a Mastiff. Weighing in at an impressive 150 to 200 pounds, these dogs are notable for their large stature. However, what truly sets them apart is their affectionate, gentle, and loyal nature towards their families. As guardians, their size and inherent caution around strangers equip them well for protection duties. They also demonstrate skills in tracking and weight pulling. Although they are intelligent, their sensitivity necessitates a gentle training approach. These devoted companions flourish in a family setting, making them exceptional pets.

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Dogue De Bordeaux
Dogue De Bordeaux

The Dogue de Bordeaux, commonly referred to as the French Mastiff, is a sizable breed with a lineage that remains somewhat ambiguous. Typically, these dogs stand around two feet tall at the shoulder and can weigh more than 99 pounds, distinguished by their prominent heads and short snouts. Unfortunately, they are susceptible to a range of health problems, including heart disease, various cancers, and hip and elbow dysplasia, which contribute to a relatively brief lifespan of five to eight years, though some may live longer. A notable case is Beasley, a nine-year-old Dogue de Bordeaux who appeared alongside Tom Hanks in the 1989 film "Turner and Hooch" and lived for three years beyond the film's release. If not properly socialized, these dogs can display stubborn and strong-willed tendencies, reminiscent of Hooch's character in the movie. However, with the right care and attention, they can develop into loyal, tolerant, and affectionate family companions.

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Saint Dane
Saint Dane

The Saint Dane may not be the ideal pet for everyone. This designer breed results from crossing a purebred Saint Bernard with a purebred Great Dane, both known for their large size, gentle nature, and protective instincts, making them excellent family companions. However, prospective owners should consider a few important factors: these dogs are prone to drooling, need plenty of living space, and generally have shorter lifespans. Their significant appetite also means that only those prepared to invest time, resources, and energy into their care should think about adding one to their family. For those who decide to bring a Saint Dane into their home, they will discover a loving, friendly, and protective companion who is particularly fond of children and very affectionate. Often called Great Bernards or Bernadanes, these dogs do shed considerably, so regular grooming is essential to keep their coats healthy. Their fur is usually short and silky, with common colors including black, white, fawn, and brindle.

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Tosa Ken
Tosa Ken

The Tosa is a sizable breed that was initially developed for dog fighting, recognized for its impressive looks and determined temperament. This breed is not ideal for novice dog owners, as it requires a skilled handler capable of establishing authority. Given its intricate background, the Tosa is not recommended for families with young children or other animals. It often displays aggression towards same-sex dogs and necessitates a sturdy, tall fence when outdoors without supervision. Continuous training is crucial to ensure the Tosa does not try to take control of the household hierarchy.

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Gull Dong
Gull Dong

The Gull Dong is a breed known for its loyalty and intelligence, characterized by a strong-willed and sometimes aggressive temperament. This dog is not ideal for novice owners; it demands a confident and consistent handler to flourish. While they show deep affection and loyalty to their families, it is vital to supervise their interactions with children, even older ones. As a breed originally developed for work, the Gull Dong thrives when given responsibilities, as they are both energetic and alert. They tend to be wary of strangers and are fiercely protective of their territory. Due to their size and occasionally grumpy nature, they can be a risk to other pets, dogs, and unfamiliar individuals. Training this breed can be quite challenging, requiring an owner with advanced skills to manage their potential for aggression and dominance. It is crucial for them to learn to respect humans and to be kept on a leash under the owner's control at all times. Despite these challenges, they are incredibly devoted and affectionate companions to their owners.

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