If you’re a fan of big, fluffy, and heavy dogs, then you’re in the right place. In this article, we’ll take a look at the top 11 heaviest dog breeds in the world. These breeds were originally bred as working dogs, used for protecting livestock, guarding families, hauling heavy loads, and working in rescue operations.
While giant breeds vary in terms of their origins, most share a history as working dogs. We’ll determine rankings according to breeds’ average weight rather than its maximum weight, based on the American Kennel Club (AKC) and Federation Cynologique Internationale (FCI) metrics.
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However, we’ll still cover cases of exceptionally massive specimens, especially near the end of the list. Here’s a list of the world’s 11 heaviest dogs.
Top 11 Heaviest Dogs
Great Dane
Great Danes are one of the largest dog breeds in the world, known for their massive size and gentle nature. According to various sources, the ideal weight for an adult
Great Dane is between 115-140 pounds for females and 140-175 pounds for males. However, some Great Danes can weigh more or less than these ranges, and individual dogs may vary. The height of a Great Dane is typically around 28-30 inches for females and 30-32 inches for males.
It’s important to note that Great Danes are slow growers and can take up to three years to reach their full size. In this article, we’ll take a closer look at the weight of Great Danes and how it varies throughout their life stages.
Newfoundland
Newfoundlands are a large and powerful breed of dog known for their sweet temperament and patient nature.
According to various sources, the ideal weight for an adult male Newfoundland is between 130-150 pounds, while females typically weigh between 100-120 pounds.
However, individual dogs may weigh more or less than these ranges, and the weight of a Newfoundland can vary throughout its life stages. For example, a six-month-old male Newfoundland may weigh around 73-87 pounds, while a female of the same age may weigh slightly less at 59-72 pounds.
It’s important to note that Newfoundlands are slow growers and can take up to three years to reach their full size. In this article, we’ll take a closer look at the weight of Newfoundlands and how it varies throughout their life stages.
Neapolitan Mastiff 
The Neapolitan Mastiff is a giant breed of dog that originated in Italy. According to various sources, the ideal weight for an adult Neapolitan Mastiff is between 110-150 pounds, with males typically weighing more than females.
However, individual dogs may weigh more or less than these ranges, and the weight of a Neapolitan Mastiff can vary throughout its life stages. The breed is characterized by its large size, loose skin, and heavily wrinkled face.
The Neapolitan Mastiff has a low activity level, even as a puppy, and requires only a brief walk to get the exercise it needs. They are best suited to a home with a large yard surrounded by a solid fence that is at least five or six feet high, as they are territorial and must learn their boundaries.
The breed is known for its protective personality and would guard the family farm or estate for many years. In this article, we’ll take a closer look at the weight of Neapolitan Mastiffs and how it varies throughout their life stages.
English Mastiff
English Mastiffs are one of the largest dog breeds in the world, known for their massive size and gentle nature. According to various sources, the ideal weight for an adult English Mastiff is between 120-230 pounds, with males typically weighing more than females.
However, individual dogs may weigh more or less than these ranges, and the weight of an English Mastiff can vary throughout its life stages. The breed is characterized by its large size, massive head, and short coat in a limited range of colors, and always displaying a black mask.
English Mastiffs are known for their gentle and loving nature, making them a popular choice for a family pet and watchdog. The breed is also known for its need for attention, so be ready for a 150-pound lapdog!
It’s important to note that English Mastiffs are slow growers and can take up to three years to reach their full size. In this article, we’ll take a closer look at the weight of English Mastiffs and how it varies throughout their life stages.
Cane Corso Italiano
The Cane Corso Italiano is a large and muscular breed of dog that originated in Italy. According to various sources, the ideal weight for an adult Cane Corso Italiano is between 88-120 pounds, with males typically weighing more than females.
However, individual dogs may weigh more or less than these ranges, and the weight of a Cane Corso Italiano can vary throughout its life stages. For example, at six months old, male Cane Corsos will weigh around 60-65 pounds, while six-month-old female Cane Corsos will weigh slightly less at 55-60 pounds.
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It’s important to note that Cane Corso Italianos are slow growers and can take up to three years to reach their full size. In this article, we’ll take a closer look at the weight of Cane Corso Italianos and how it varies throughout their life stages.
Leonberger
The Leonberger is a giant breed of dog that originated in Germany. According to various sources, the ideal weight for an adult Leonberger is between 90-170 pounds for males and 100-130 pounds for females.
However, individual dogs may weigh more or less than these ranges, and the weight of a Leonberger can vary throughout its life stages. For example, at six months old, male Leonbergers will weigh around 44-67 kg, while six-month-old female Leonbergers will weigh slightly less at 38-34 kg.
It’s important to note that Leonbergers are slow growers and can take up to three years to reach their full size.
Tibetan Mastiff
The Tibetan Mastiff is a rare and large-size dog breed that originated in Tibet and China.
Appearance
– The Tibetan Mastiff is a powerful, heavy, and athletic dog with a massive, towering frame.
– Its body is slightly longer than it is tall, and its walk is slow and deliberate.
– The breed has a thick and fairly long coat, especially around the neck and shoulders.
– Coat colors include black, brown, blue/grey, or gold.
Temperament
– The Tibetan Mastiff is considered an intelligent, protective, strong-willed, and tenacious breed.
– They are known to be aloof and territorial with strangers, but sweetly devoted to their family.
– Some Tibetan Mastiffs can be aggressive towards other dogs and must be kept away from strange dogs.
– Keeping dogs of the opposite sex in the same household tends to have better results.
Other information
– The breed acted as the guardian and companion of the Tibetan villagers and nomads, as well as being the traditional guardian of the Tibetan monasteries.
– The Tibetan Mastiff is a primitive breed that typically retains the hardiness required for it to survive in Tibet, Ladakh, and other high-altitude Himalayan regions.
– The breed is not hypoallergenic and requires regular grooming to maintain its coat.
In summary, the Tibetan Mastiff is a majestic and imposing breed that requires a lot of attention and care. They are best suited for experienced dog owners who can provide them with the training, socialization, and exercise they need.
Bullmastiff
The ideal weight for an adult male Bullmastiff is between 110-130 pounds, while females typically weigh between 100-120 pounds.
Bullmastiffs can grow very fast and are heavy dogs. They can gain 15-18 pounds in weight from two to three months old.
Bullmastiffs are slow growers and can take up to three years to reach their full size. At six months old, male Bullmastiffs will weigh around 69.5-77 pounds, while females of the same age will weigh around 64-74 pounds.
The average adult Bullmastiff is 24-27 inches tall and weighs 100-130 pounds Males are usually an inch taller and weigh about 10 pounds more than females.
In summary, Bullmastiffs are large and heavy dogs that require proper nutrition and exercise to maintain their weight and health. It’s important to monitor their weight gain, especially during their fast-growing stages, to prevent them from becoming overweight or obese.
Dogue de Bordeaux
The Dogue de Bordeaux is a large and muscular breed of dog that originated in France.
The ideal weight for an adult Dogue de Bordeaux is between 119-143 pounds. Males typically weigh more than females.
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At two years old, the Dogue de Bordeaux reaches its final size and weight.
The breed is not very tall, standing around two feet tall at the shoulder. The breed is known for its massive head and muscular build.
The Dogue de Bordeaux is a lazy breed and can be seen as a calmer breed, but they are also good guard dogs. The average weight of an adult Dogue de Bordeaux is between 120-140 pounds.
In summary, the Dogue de Bordeaux is a large and muscular breed that requires proper nutrition and exercise to maintain its weight and health. It’s important to monitor their weight gain, especially during their fast-growing stages, to prevent them from becoming overweight or obese.
Irish Wolfhound
The Irish Wolfhound is a giant breed of dog that originated in Ireland.
The ideal weight for an adult male Irish Wolfhound is up to 180 pounds, while females will weigh slightly less but are still a large breed.
According to the breed standard, the minimum height for an adult male Irish Wolfhound is 79cm, and for females, it is 71cm. The breed is characterized by its large size, strength, and greyhound shape.
Irish Wolfhounds are often favored for their loyalty, affection, patience, and devotion. The breed is known for its mild aspect and peaceful disposition.
Irish Wolfhounds are slow growers and can take up to three years to reach their full size. Adult male Irish Wolfhounds weigh a minimum of 54.5kg, and adult females weigh a minimum of 40.9kg.
The breed is not very tall, standing around two feet tall at the shoulder.
In summary, the Irish Wolfhound is a giant breed that requires proper nutrition and exercise to maintain its weight and health. It’s important to monitor their weight gain, especially during their fast-growing stages, to prevent them from becoming overweight or obese.
Rottweiler
The ideal weight for an adult Rottweiler is between 80-120+ pounds (36-54+ kilograms).
Male Rottweilers should fall between 24 to 27 inches tall, weighing in at 95 to 135 pounds. In comparison, female Rottweilers are slightly smaller at 22 to 25 inches tall and weigh between 80 to 100 pounds.
Rottweilers are large, muscular dogs who grow to be fierce, loving protectors. Rottweilers are prone to obesity and being overweight, so it is important to keep an eye on their weight.
Rottweilers are slow growers and can take up to three years to reach their full size. At six months old, male Rottweilers will weigh around 64-71 pounds on average, with their female counterpart weighing in around 60-64 pounds.
Rottweilers are prone to becoming overweight if they lead a sedentary life, so it’s important to ensure they get enough exercise.
In summary, Rottweilers are large and muscular dogs that require proper nutrition and exercise to maintain their weight and health. It’s important to monitor their weight gain, especially during their fast-growing stages, to prevent them from becoming overweight or obese.
FAQS
1. What is the heaviest dog breed in the world?
According to the Guinness World Records, the heaviest dog ever recorded was an English Mastiff. However, in terms of average weight, the heaviest dog breeds are the Great Dane, English Mastiff, and Saint Bernard.
2. What is the average weight of a Great Dane?
The ideal weight for an adult Great Dane is between 110-175 pounds for males and females.
3. How much does a Bullmastiff weigh?
The ideal weight for an adult Bullmastiff is between 100-130 pounds for males and females.
4. Are Rottweilers heavy dogs?
Yes, Rottweilers are considered heavy dogs. The ideal weight for an adult Rottweiler is between 80-120+ pounds.
5. How much does an Irish Wolfhound weigh?
The ideal weight for an adult male Irish Wolfhound is up to 180 pounds, while females will weigh slightly less but are still a large breed.
6. How long does it take for a large breed dog to reach its full size?
Large breed dogs, such as the ones on this list, can take up to three years to reach their full size.
7. Are large breed dogs more prone to obesity?
Yes, large breed dogs are more prone to obesity and being overweight. It’s important to monitor their weight gain and ensure they get enough exercise.
8. What is the tallest dog breed?
The tallest dog breed is the Irish Wolfhound, which can reach up to 32 inches tall at the shoulder.
9. What is the average weight of a Neapolitan Mastiff?
The ideal weight for an adult Neapolitan Mastiff is between 110-150 pounds.
10. What is the average weight of a Tibetan Mastiff?
The ideal weight for an adult Tibetan Mastiff is between 70-150 pounds.
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Category: DOGS
