When it comes to canine companions, few things command as much awe and admiration as the majestic presence of large dog breeds. Known for their impressive size and unparalleled strength, these gentle giants embody a perfect blend of power and loyalty. Their towering stature and strong build make them not just remarkable pets but also effective guardians and working partners. In this exploration of the 10 heaviest big dog breeds, we delve into remarkable breeds that have been celebrated for their formidable physiques and compassionate hearts, offering insights into what makes them both imposing and endearing additions to any family.
Big dog breeds have a captivating allure, with their massive size, noble demeanor, and unwavering loyalty. These gentle giants, with an average weight often exceeding 100 pounds, have served as protectors, rescuers, and companions throughout history. From guarding livestock to saving lives in harsh climates, their roles have been as vast as their frames.
Caring for these large dogs comes with unique challenges. Their food intake can rival a small army’s, exercise is crucial to prevent health issues, and they need ample space to move comfortably. Whether it’s females or males of these breeds, their towering stature and loving nature make them stand out from other dog breeds.
If you’re ready for the responsibility—and the occasional drool puddle—these big breeds bring immense joy and companionship. Let’s dive into the world of these extraordinary dogs, alongside other dogs of similar size and character.
10 Heaviest Big Dog Breeds
1. Great Pyrenees
|
Life Span |
10–12 years |
|
Origin |
Pyrenees Mountains (France/Spain) |
|
History |
Developed as livestock guardians for sheep and cattle. |
The Great Pyrenees is the stuff of fairy tales—a majestic dog with thick fur that looks like it could walk right out of the snowy peaks of the Pyrenees Mountains. These gentle giants are the very definition of “calm but ready to act” when it comes to their families.
With their massive size, according to PetMD, standing at 25–32 inches tall and weighing 85–160 pounds, these dogs have an unmistakable presence. Despite their large size, they’re affectionately nicknamed “gentle giants.”
This large dog breed is known for being fiercely loyal and protective, making them top-tier guard dogs. They’re calm indoors but will spring into action to defend their flock—or family—from threats like wolves or other predators.
Regular brushing is a must to maintain that fluffy, white coat. Pro tip: Invest in a vacuum if you don’t already own one—there’s going to be fur everywhere!
2. Neapolitan Mastiff
|
Life Span |
7–9 years |
|
Origin |
Ancient Rome |
|
History |
Bred as war dogs and protectors by the Romans. |
Meet the Neapolitan Mastiff: a dog so wrinkly, you’ll wonder if it’s constantly deep in thought—or just pondering its next meal. These big dogs might look intimidating, but their affection for the family will melt your heart faster than butter on a summer day.
Known for their massive size (males can weigh up to 150 pounds) and saggy, wrinkled skin, this heaviest dog breed could star in a movie titled The Wrinkle Chronicles.
They’re protective, affectionate, and incredibly loyal. Though they might accidentally knock over a small child with their massive heads, they mean no harm—they’re just living life at 100 pounds of love per paw.
Short fur means less shedding, but those wrinkles? They need regular cleaning to avoid infections suggests PDSA. Think of it as doggy skincare!
3. Anatolian Shepherd Dog
|
Life Span |
11–13 years |
|
Origin |
Turkey |
|
History |
Developed as livestock guardians to protect sheep from predators. |
The Anatolian Shepherd Dog is like that quiet, strong neighbor who’s always ready to help. These large dogs have been protecting flocks and herds in Turkey for centuries, keeping predators like wolves at bay says The Kennel Club.
Standing tall at 27–29 inches and weighing between 80 and 150 pounds, their muscular frame screams “built for the job.”
Don’t let their imposing stature fool you—this breed is all about loyalty. They’re protective, independent, and calm, making them excellent guard dogs for both sheep and families. Anatolian Shepherds are also incredibly intelligent, so be ready to outsmart them during training sessions.
Low maintenance! Their short coat only requires occasional brushing, but during shedding season, you might want to grab a lint roller—or three.
4. Leonberger
|
Life Span |
8–10 years |
|
Origin |
Germany |
|
History |
Bred to resemble a lion for nobility in 19th-century Europe. |
The Leonberger looks like it walked straight out of a fantasy novel, with a lion-like mane and a personality just as majestic. This breed is a family favorite for its mix of strength and gentleness, making it one of the most family-friendly large dog breeds.
This big breed is known for its massive size, standing 25–31 inches tall and weighing between 90 and 170 pounds as per WebMD. Their double coat comes in rich shades of golden to reddish-brown, adding to their regal appearance.
Leonbergers are affectionate, loyal, and excellent with children. They’re the quintessential gentle giants, but don’t mistake their kindness for passivity—they’re brave when it counts.
With their thick fur, regular brushing is non-negotiable, especially during shedding season. Pro tip: Keep a towel handy—these dogs love water and aren’t shy about showing it!
5. Great Dane
|
Life Span |
7–10 years |
|
Origin |
Germany |
|
History |
Originally bred as boar-hunting dogs in the 16th century. |
If the dog world had supermodels, the Great Dane would be strutting down the runway. Known as the tallest dog breed in the world, these gentle giants are a mix of elegance and goofiness.
Great Danes can tower at 28–34 inches tall and weigh 110–175 pounds claims Britannica. They’re the tallest dogs, sometimes requiring owners to install taller countertops to avoid counter-surfing mishaps.
Despite their massive size, Great Danes are calm and affectionate pets. They’re the kind of dog that believes they’re lap dogs, often with hilarious results.
Their short coat is low-maintenance, but they shed year-round. Keep a grooming mitt nearby to manage the fur and give them an extra scratch while you’re at it.
6. Irish Wolfhound
|
Life Span |
6–8 years |
|
Origin |
Ireland |
|
History |
Bred to hunt wolves and large game in ancient Ireland. |
The Irish Wolfhound might look like it stepped out of medieval times, and for good reason—it’s one of the oldest dog breeds in the world. Known for their incredible height and calm demeanor, these dogs are as majestic as they come.
Standing at a towering 32 inches or more, they’re taller than most humans when standing on their hind legs. Despite their height, their weight is relatively lean at 105–120 pounds as mentioned by VCA.
These gentle giants are incredibly loyal and calm, often called “the noblest of big dogs.” Their patience makes them great family pets, though their short lifespan can be bittersweet.
Their wiry coat needs regular brushing to prevent matting. While their grooming needs aren’t excessive, their love for rolling in the dirt can keep you on your toes.
7. Saint Bernard
|
Life Span |
8–10 years |
|
Origin |
Swiss Alps |
|
History |
Bred as rescue dogs in the snowy Alps to save stranded travelers. |
The Saint Bernard is practically synonymous with snow rescues. These fluffy heroes from the Swiss Alps are famous for their barrel collars (thanks, cartoons!) and their unwavering loyalty to humans.
Towering at 26–30 inches and weighing 120–180 pounds, this heaviest dog breed looks like it’s wearing a permanent winter coat as per Orvis.
Saint Bernards are affectionate and calm, earning their spot as one of the most family-friendly big dog breeds. Their gentle temperament makes them great pets for families with children.
Their thick fur requires regular brushing to keep shedding under control. Bonus: their fur is snow-ready, but they may not be heat-friendly, so keep them cool in the summer!
8. Newfoundland
|
Life Span |
8–10 years |
|
Origin |
Canada |
|
History |
Developed as working dogs for fishermen in Newfoundland. |
The Newfoundland, affectionately called “Newfie,” is the water-loving lifeguard of the dog world. With their massive size and gentle temperament, these dogs are as impressive as the rugged Canadian shores they come from.
Weighing between 100–150 pounds and standing 26–28 inches tall, these dogs are built like tanks—tanks that happen to adore swimming. Their webbed feet and waterproof coat make them natural swimmers claims Omlet.
Newfoundlands are affectionate, calm, and famously good with children, earning them the nickname “nanny dogs.” They’re also incredibly loyal, making them perfect family pets.
Their thick fur requires frequent brushing, especially during shedding seasons. Be prepared for drool, lots of it—it’s practically their middle name.
9. English Mastiff
|
Life Span |
6–10 years |
|
Origin |
England |
|
History |
The ancient breed was used for guarding and as war dogs. |
The English Mastiff holds the title of one of the heaviest dog breeds, and boy, do they own it! These gentle giants are known for their massive size and heartwarming devotion to their families.
Standing 27–30 inches tall and weighing a staggering 120–230 pounds notes MCOA, English Mastiffs redefine “big dogs.” Their broad chest and muscular frame make them look like canine bodybuilders.
Despite their intimidating size, they’re calm, affectionate, and excellent with children. They’re protective without being aggressive, making them top-tier guard dogs.
Their short coat is easy to maintain with occasional brushing. Just keep a mop handy—Mastiffs are notorious droolers who can turn any surface into a slip-and-slide.
10. Caucasian Shepherd
|
Life Span |
10–12 years |
|
Origin |
Caucasus Mountains (Eastern Europe) |
|
History |
Bred to guard livestock and protect from predators like wolves. |
The Caucasian Shepherd is a fearless guardian bred to protect livestock in the harsh climates of the Caucasus Mountains. These dogs are massive, both in size and in their protective instincts notes AKC.
Weighing 100–170 pounds and standing 24–34 inches tall, their thick double coat gives them a lion-like appearance. Their presence alone is enough to deter predators or trespassers.
They’re fiercely loyal and protective, making them ideal guard dogs. However, their independent streak means they need an experienced owner who can handle their strong will.
Their thick fur requires regular brushing to prevent matting and manage shedding. During warmer months, they may need extra care to stay cool due to their dense coat.
Conclusion
Adopting a large breed of dog is a decision that comes with both immense rewards and significant responsibilities. These gentle giants, often standing 27 inches or taller, offer unmatched loyalty, protection, and companionship. However, their size means they require thoughtful care and accommodations.
From ensuring they have enough space to roam to meeting their dietary and exercise needs, owning a giant breed is no small task. Their average weight alone can make routine activities, such as transportation or vet visits, a bit more challenging. Additionally, proper training and socialization are crucial to manage their strength and size effectively.
Despite these challenges, the love and devotion these dogs bring into your life make it all worthwhile. If you’re ready to welcome a massive, loving companion into your home, a large breed of dog could be the perfect addition to your family. Just remember: with great size comes great responsibility!
In conclusion, the ten heaviest big dog breeds are remarkable for their size, strength, and robust nature. These breeds, including the Mastiff, Saint Bernard, and Newfoundland, were traditionally bred for tasks that required power and endurance, such as guarding, rescue, and labor. Their imposing presence and gentle temperament make them reliable companions and protectors. However, owning such giant breeds demands responsibility, including attention to their health, ample space, and regular exercise. Understanding their needs ensures that these magnificent dogs thrive and continue to be treasured for their loyalty, courage, and companionship.