Top 15 Heaviest Dog Breeds in the World

For a lot of people, when it comes to their dogs, bigger is better. There’s so much more dog to love with these sweet giants. Today we are going to take a look at the 15 heaviest dog breeds in the world.

What is the heaviest dog breed in the world? The Guinness World Record for the heaviest dog is held by a massive English Mastiff named Zorba. Zorba weighed in at an unbelievable 343 pounds!

English Mastiffs are the heaviest dog breed in the world, but they’re certainly not the only giant dogs. Take a look at our list of the 15 heaviest dog breeds in the world. There is some overlap in weights, but we’ve ordered them from lightest to heaviest.

1. Cane Corso


Weight: 100 lbs (45 kg)

The Cane Corso is the lightest breed on our list. They were initially bred for guarding the house and hunting big game. These dogs have an intimidating towering presence, standing 26 inches tall and weighing in at around 100 pounds.

2. Scottish Deerhound


Weight: 100 lbs (45 kg)

Scottish Deerhounds are known for their friendly demeanor and incredible agility. Of all of the heavy dogs on our list, the Scottish Deerhound is one of the lightest, but it is still a large dog. It weighs around 100 pounds, and it stands about 30 inches tall.

3. Bernese Mountain Dog


Weight: 115 lbs (52 kg)

The next heaviest dog on our list is the Bernese Mountain Dog. This is a hardy breed that does well in cold weather. Bernese Mountain Dogs are smart and strong, and they are known for being easygoing and gentle. They weigh up to 115 pounds, and they stand at around 26 inches tall.

Read here to learn more about the Bernese Mountain Dog.

4. Great Pyrenees


Weight: 120 lbs (54 kg)

The Great Pyrenees is another heavy dog breed. They were once known as the “Royal Dog of France.” This dog has been a favorite of both noblemen and commoners for centuries. It is known for being affectionate and caring. The Great Pyrenees can weigh anywhere from 80 to 120 pounds. These gentle giants would be a welcome addition to any active family.

You can learn more about the Great Pyrenees here.

5. Dogue De Bordeaux

Dogue De Bordeaux

Weight: 130 lbs (59 kg)

The Dogue De Bordeaux is the next heaviest breed on our list. This muscular dog was commonly used for hunting large game like boars. Do you want a fearless watchdog to guard your family and home? Well, then you might be looking for a Dogue De Bordeaux. This massive dog weighs in at about 130 pounds. Not only are they intimidating in size, but they are also quite protective.

You can find more information about this dog from the American Kennel Club.

6. Bullmastiffs


Weight: 130 lbs (59 kg)

Bullmastiffs are another very heavy dog breed. They are built strong and powerful. But they are also sweet-natured and docile and make excellent family dogs. This breed doesn’t bark too much or require too much grooming. And they make wonderful natural guardians. Bullmastiffs weigh around 130 pounds.

7. Black Russian Terrier


Weight: 150 lbs (68 kg)

The next heaviest dog breed is the Black Russian Terrier. This dog is large and powerful. Traditionally they have been used as guard dogs, and they have an instinct to protect. The Black Russian Terrier is reserved with strangers but very loving with its family. They weigh in somewhere between 100 and 150 pounds.

8. Neapolitan Mastiff


Weight: 150 lbs (68 kg)

Another massive dog in the Mastiff breed is the Neapolitan Mastiff. This dog is known for its trademark wrinkly and loose skin. Neapolitan Mastiffs are peaceful and strong. They are also extremely loyal to their families, protective around strangers. Their coat is easy to take care of, but they do tend to drool a lot. Neapolitan Mastiffs weigh between 130 and 150 pounds.

9. Tibetan Mastiffs


Weight: 160 lbs (72 kg)

If you are looking for a large, heavy dog, then you should consider the Tibetan Mastiff. These dogs are extremely intelligent and independent. They make great guard dogs because they are highly protective of their property and family. Tibetan Mastiffs weigh between 110 and 160 pounds.

10. Mastiffs


Weight: 160 lbs (72 kg)

Mastiffs are some of the largest breeds in the world. Several different types of Mastiffs made our list for the heaviest dogs. Mastiffs usually weigh between 120 and 160 pounds. And they stand at 27 inches tall. These dogs have been used throughout history as protectors and hunters. This is mainly due to their incredible agility and strength.

Mastiff owners sometimes complain about the dog’s excessive drooling. However, their protective demeanor and lovable personality more than make up for the drool.

11. Irish Wolfhound


Weight: 170 lbs (77 kg)

The next heaviest dog on our list is the Irish Wolfhound. This breed is known as one of the tallest dogs in the world. They stand at the massive height of 31 inches, and they weigh between 120 and 170 pounds. Throughout history, these dogs excelled in both tracking and hunting. Instead of using their sense of smell to find large game, they use their sight.

12. Leonberger


Weight: 170 lbs (77 kg)

The Leonberger is the next heaviest dog breed in the world. This dog is known for its strength and courage. For hundreds of years, they have been a trusted steed in places like Germany. The Leonberger weighs in at a similar weight to the Irish Wolfhound. They can weigh up to 170 pounds. And they have an average height of 28 inches.

The American Kennel Club calls the Leonberger gentle, friendly, and playful. You can read more about this incredible breed here.

13. Great Dane


Weight: 200 lbs (90 kg)

We’re discussing the heaviest dogs today. And the Great Dane is undoubtedly one of them. This massive dog is a towering breed that stands at 34 inches tall. And they can easily reach up to 200 pounds. This dog is so big that it looks a bit more like a small horse than a dog.

The tallest dog in the world, according to the Guinness World Records, is a Great Dane named Zeus. Zeus stands a whopping 44 inches tall. You can learn more about Zeus in this great video:

Despite the Great Dane’s size, they are known as gentle giants. They love being around their families, and they love to show affection to their people. Like most of the other heavy dogs on our list, this one needs plenty of space and exercise to stay healthy and happy.

14. Saint Bernard


Weight: 200 lbs (90 kg)

When most people think about huge dogs, they think about Saint Bernards. These dogs are some of the heaviest in the world. There is only one heavier breed. Saint Bernards are known for their daring rescue missions in the Swiss Alps. There they would save stranded climbers from avalanches and dangerous weather conditions.

This dog is a workhorse, but it’s also an excellent companion. Don’t let this monstrous dog intimidate you. When it comes to their people, these dogs are eager to please and are exceptionally loving. Saint Bernards weigh around 200 pounds, and they stand at about 27 inches high.

15. English Mastiff


Weight: 250 lbs (113 kg)

Now what we’ve all been waiting for. I introduce you to the heaviest dog breed in the world: the English Mastiff. As we discussed earlier, the tallest dog on record is a Great Dane. Well, the heaviest dog ever recorded was an English Mastiff.

These gentle giants grow to a height of around 30 inches. And they weigh between 200 and 250 pounds on average. The Guinness World Record for the heaviest dog is held by an English Mastiff named Zorba. Zorba weighed in at an incredible 343 pounds!

Just watch this video. Such a gentle and loving beast:

The Bottom Line

As you can see, the heaviest dog breeds tend to weigh just as much as their owners. But even at their massive size, large dogs make incredible companions for almost any family. Larger dogs don’t necessarily require any more time or energy than you would spend on a small dog. But you should be prepared for extra food and a lot of shedding. Aside from that, there really isn’t much difference between owning a giant breed and your standard Chihuahua or Lab. You just get a whole lot more dog to love!

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