Heaviest Dog Breeds

They’re massive and powerful and just a whole lot of dogs in one bulky package. Some may look fierce, some look like a giant teddy bear but they’re definitely some of the cuddliest pups on the planet. Ready to get to know more about these heavyweight pups in the entire dogdom? 

The mighty Saint Bernard is one of the heaviest dog breeds on the face of the earth with a whopping 350 lbs. Not too far behind is the Newfoundland at a back-breaking weight of 260 lbs followed closely by the Bully Kutta or Pakistani Mastiff at 250 lbs.

If you’re into big and heavy pups, or you’re simply curious about these majestic canines and their weight, keep reading. You might just find one that’s about your weight… Or perhaps even heavier!

26. Saint Bernard

Image from Barkbox

Average Weight: 260 lbs.

Hailing from the chilly Swiss Alps, the Saint Bernard is our heaviest dog breed on the list. With an average weight of 300 lbs, they are definitely massive canines! In fact, the heaviest Saint Barnard ever recorded in history named Benedictine, weighs a whopping 357 lbs!

Saints have been regarded as outstanding rescue dogs and carting dogs. They are great at rescuing lost travelers in the Great Saint Bernard Pass, which also gave them their name.

25. Newfoundland

Image from Barkbox

Average Weight: 130 lbs.

This fluffy teddy bear-looking canine is just as cuddly and snuggle-worthy as it looks. The Newfoundland dog is gargantuan in size at more than 6 feet tall and weighs about 260 lbs or so. They are covered in a dense amount of coat, which keeps them nice and cozy in frigid regions.

Newfies are fiercely loyal to their families. They are gentle giants that want nothing more than to love and care for their owners, making them a great family pet.

24. Irish Wolfhound

Image from Best Bully Sticks

Average Weight: 150 lbs.

The Irish Wolfhound is actually the tallest dog breed on the planet. While they may not exactly be the heaviest, they are definitely hefty at more than 150 lbs. These leggy canines are about 3 feet tall – almost the size of a kindergarten.

As with the other heavyweights on the list, the Irish Wolfhound is such a sweetheart. They like to spend time with their owners and delight in cuddling, walking, and playing.

23. Great Dane

Image from Bully Beds

Average Weight: 200 lbs

Another leggy pup, the Great Dane grows as tall as about 34 inches at the shoulders and weighs 200 lbs or so. Their coat colors vary in different colors such as black, white, brown, and a combination of black and white.

These sweet and affectionate pups are very loyal to their owners. However, it is important to keep young children supervised when playing with a Great Dane because of their apparent heft and large build.

22. Dogue de Bordeaux

Image from Instagram:@benkirkleybordeauxs_bulldogges

Average Weight: 145 lbs. 

Famous for their adorable folds and wrinkles on their face and body, the Dogue de Bordeaux is one massive beast. These pups tip the scale at around 145 lbs, often heavier than an average adult woman. And yes, they’re quite tall, too!

They may seem intimidating but DDBs are actually pretty gentle and mellow. They get along well with children and other pets. But be sure to train them early on to develop positive habits and eliminate negative ones, which can arise from anxiety and boredom.

21. Akbash

Image from Instagram:@jamienewnew

Average Weight: 140 lbs.

Another one of the heaviest dog breeds on Earth, the Akbash is a mighty Turkish pup that weighs about 140 lbs. Some varieties are medium-sized and lighter at around 75 lbs but there are those on the larger side. 

These herding canines are quite calm and sweet. But they are very protective of their owners, which gives them the impression of being fierce. Thus, they also make amazing guard dogs because of their strong desire to keep their families safe.

20. Leonberger

Image from Instagram:@lailakleveland

Average Weight: 170 lbs.

A lion dog, the Leonberger got its name from its looks. They are massive pups with a thick mane like a lion and dense coat all over. Fur and all, this big boy weighs up to 170 lbs and is quite tall and wide.

Leonbergers are amazing companion dogs. They adore their owners more than anything else in the world. And to express how much they love their favorite humans, they are always up for cuddles and snuggles, like a gigantic lap dog!

19. Bernese Mountain Dog

Image from Instagram:@ anakin_padme_bernese

Average Weight: 125 lbs.

Those big paws, a tricolor coat of black, brown and white, and that infamous drool… These are famous Bernese Mountain Dogs’ trademarks. They are huge cuddle bugs and love to be around their families all the time. 

Weighing about 125 lbs, Berners are definitely giant fellows. Their heart is just as big as their build, as these are docile and loving pups toward kids and other pets in the household.

18. Anatolian Shepherd

Image from Instagram:@wildoakfarms

Average Weight: 150 lbs.

Weighing an average of 150 lbs, the Analotian Shepherd is one big boy. This Turkish dog breed is also quite ancient with their existence dating as far back as 2000 BC. At 32 inches tall, they are one of the largest pups recognized by the AKC.

Historically, Anatolians served as herders and guard dogs. They protected cheetahs from being killed by cattle ranchers in Namibia. Now, they are amazing family dogs always devoted to keeping their families safe.

17. Dogo Argentino

Image from Instagram:@dogoargentino.ins

Average Weight: 125 lbs.

As the name implies, the Dogo Argentino is a canine breed from Argentina. These 125-pounder pups are as tough as they look. After all, they were bred to hunt big game. They are alert, powerful and can be fierce in the face of their prey.

Word to the wise – this breed is better off with an experienced owner. They can be tricky to train, combined with their massive build. But when properly trained, they are one of the most loyal and devoted dogs there is.

16. Caucasian Shepherd

Image from Instagram:@ph_alteza

Average Weight: 110 lbs.

A muscular and strong dog breed, the Caucasian Shepherd is robust and powerful. These dogs weigh about 110 lbs on average and stand up to 30 inches tall. They are amazing herding dogs that protect flocks against predators.

Caucasian Shepherds have a bit of a stubborn streak. However, this is nothing that early socialization and training cannot address. When trained well, they make for an outstanding family dog because of their loyalty to their owners.

15. Komondor

Image from Instagram:@hungarian.puli

Average Weight: 130 lbs.

Famous for its long and thick dreadlocks, the Komondor is one unique-looking pup! They are also quite heavy at 130 lbs – muscle, hair, and all! Keeping their hair clean can be a challenge for owners because of the elaborate style, though.

Throughout history, the Komondor has served as a guard dog for livestock. When tasked to protect these animals, they do all they can to keep them safe. This inherent desire to protect makes them excellent with families, especially young children.

14. Kangal

Image from Instagram:@nala_kangal

Average Weight: 145 lbs.

Another heavy pooch with Turkish roots, the Kangal is one hardy and powerful dog. They weigh up to 145 lbs and can be quite agile. As a protection dog, they are very loyal to their owners.

Interestingly, the heavy weight does not slow this canine down. In fact, they are rather fast and can chase its prey without any problem. Early socialization is a must for this dog to overcome aggressive tendencies.

13. Russian Black Terrier

Image from Instagram:@theblackrussians

Average Weight: 140 lbs.

Black, heavy, and fluffy, these are the main features of the massive Russian Black Terrier. Tipping the scale at 140 lbs or more, these giant pooches are a lot of things including confident, smart and affectionate.

One thing to note about this breed is that it is susceptible to hip dysplasia. Its heft puts a huge pressure on the hips, which leads to this condition over time.

12. Neapolitan Mastiff

Image from Instagram:@hollingsworthandco

Average Weight: 200 lbs.

Just like other Mastiffs, the Neapolitan Mastiff is a supersized pup. These giant boys have an average weight of 200 lbs while others are a tiny bit lighter at 170 (still heavy, without a doubt). They have short and sheer coats that do not require much grooming.

An amazing companion for solos, couples, and families, the Neapolitan Mastiff is an affectionate breed. They drool a lot, though, so be sure to keep a towel with you to keep it under control!

11. Scottish Deerhound

Image from Instagram:@__ulle___

Average Weight: 100 lbs.

They may be the lightest dog on the list but they are still quite heavy at 100 lbs. Scottish Deerhounds are tall fellows with a towering height of 30 inches. With long limbs and big paws, they can appear quite intimidating.

But beyond the commanding build, Scottish Deerhounds are quite sweet and friendly. They are also surprisingly agile, which makes them fantastic companion dogs for your adventures.

10. Bullmastiff

Image from Instagram:@big_boy_odin

Average Weight: 130 lbs.

Another heavyweight bully dog, the Bullmastiff is a 130-pounder pup with an all-muscle build. They have short hair, which makes them one of the easiest breeds to groom. Plus, they hardly ever bark, so it is perfect for folks who prefer a quiet pet.

If you look past the intimidating feature of this pooch, you will discover a sweet-natured fellow. These canines are docile and loyal, and you can be sure to find an amazing family dog in a Bullmastiff.

9. Rottweiler

Image from Instagram:@rottweiler_peak

Average Weight: 120 lbs

Blocky and long, Rottweilers are large pups weighing about 120 lbs. Their heads are quite massive, which match their rectangular bodies. Just like the Mastiff breed, Rotties drool a lot because of their loose lips.

Most Rotties have short coats, often in shades of black and tan. Sometimes you may find a fluffy variety of this breed but it is not recognized by the AKC. Overall, this big guy is an all-around pooch that’s great as a companion, guard dog, and watchdog.

8. Great Pyrenees

Image from Instagram:@thegreatsiggi

Average Weight: 120 lbs.

Standing at a towering height of 32 inches and weighing up to 120 lbs, the Great Pyrenees is one giant canine. They have been a favorite companion dog of noblemen in France, and now, in various parts of the world.

Pyrs are noted for their fluffy white coats and sometimes in a shade of cream. They are lovely dogs with such a big heart and always ready to shower their families with love and affection.

7. Tibetan Mastiff

Image from Instagram:@tibetan_mastiffs_uk

Average Weight: 160 lbs.

Historically bred by Tibetan nomads, the majestic Tibetan Mastiff is a 160-pounder canine. They have a muscular and solid body, which is covered by a huge amount of coat. Their coat color scheme includes black, brown, and tan.

Tibetan Mastiffs were historically used for fighting. However, they are actually sweet and peaceful creatures with a strong dedication for their families.

6. Kuvasz

Image from Instagram:@lizerett

Average Weight: 115 lbs.

An ancient dog breed from Hungary, the Kuvasz served as a guard dog in Hungarian farms and countryside. They use their muscular and powerful 115-pound body to defend livestock from predators and invaders.

Kuvasz is a robust and agile dog. They enjoy playtime with their families, as well as outdoor adventures. If you prefer a pooch that’s always up for physical activities, this breed is for you.

5. English Mastiff

Image from Instagram:@theycallme_floki

Average Weight: 250 lbs.

They may be on the shorter end of the spectrum compared to the other Mastiff breeds, but the English Mastiff is definitely one of the heaviest! In fact, they can grow up to 250 lbs. With all that muscle and mass, they do deserve a spot on our list.

What’s great about the English Mastiff is how low-maintenance they are. They do not require much exercise, so they should do well with folks who are not too keen on moving around much.

4. Landseer

Image from Instagram:@aby.and.eddy.on.tour

Average Weight: 180 lbs.

With features resembling a Newfoundland dog, the Landseer is another large and heavy dog at over 180 lbs. They have long, fluffy coats in black, white, or a combination of these colors. This makes them a bit challenging to groom, in addition to their apparent massive size.

Despite these features, however, the Landseer is a darling that won’t give their owners a hard time during training. They are amazingly obedient and loving dogs with a strong desire to please their favorite humans all the time.

3. Bully Kutta

Image from Instagram:@bully_kutta_pablo

Average Weight: 250 lbs.

The Bully Kutta or Pakistani Mastiff is a giant pooch in black, white, brindle, and brown coats. They are also quite heavy and tip the scale at 250 lbs or more. Just the sheer massive build of this canine can be intimidating to an average person.

However, looks can definitely be deceiving as the Bully Kuta is actually a mellow pup. They have a sweet disposition and can get along with all types of people.

2. Perro de Presa Canario

Image from Instagram:@presacanariolostracios

Average Weight: 300 lbs.

A canine breed from the Canary Islands, the Presa Canario is another heavy pup. These dogs were originally bred for dog fighting, which explains their powerful build and heavy weight at 80 to 130 lbs. 

Despite their background in fighting, these canines are actually quite sweet and mellow. They do require early training and socialization to overcome aggressive tendencies. But when well-integrated with your household members, they can be quite comical and lighthearted.

1. Cane Corso Italian

Image from Instagram:@canecorso_of_world

Average Weight: 110 lbs.

The Cane Corso Italian or the Italian Mastiff is one giant pooch. Males and females have an average weight of 110 lbs while others may be just a little under 100 lbs. Either way, they are big pups with black coats like one giant black bear!

But don’t be deceived by their gargantuan build. These pups are actually one of the sweetest canines there are. When not busy playing or exercising, they enjoy a good cuddle with their favorite humans.

Related Questions

What Is The Heaviest Dog In The World Guinness World Records? In 2008, Zorba the English Mastiff gained worldwide fame as the heaviest dog in the Guinness World Records at 343 lbs. However, Benedictine the Saint Bernard displaced him in the heaviest dog category as it was recorded to have an outstanding weight of 357 lbs.

How Long Does A 100 Pound Dog Live? Larger dogs such as those weighing 100 lbs or so live an average of 8 to 10 years. Their lifespan, however, depends on numerous factors such as their diet, genetic ailments, lifestyle, and exercise, to name a few.

Why Do Small Dogs Live Longer Than Large Ones? According to scientists, large dogs age faster than their smaller counterparts. For instance, scientists have noted that for every 4.4 lbs of weight, this reduces a canine’s lifespan by a month. Larger breeds succumb quicker to illnesses linked with age such as abnormal cell growth, free radical damage, and cancer.

Avatar photo
Pete Decker