The 15 Largest Dog Breeds Ever Recorded (You Won’t Believe #12!)

Ever seen a dog so massive it made you wonder if you accidentally wandered into a Jurassic Park set? Some canines don’t just break the scale—they dominate it.

Whether it’s sheer height, jaw-dropping weight, or legendary presence, these dogs aren’t just big—they’re record-breaking.

While many of us think of Labradors or Golden Retrievers when we picture large dogs, those beloved breeds don’t even come close to the towering giants and heavyweight champions on this list.

We’re talking about pups whose paws could cover your entire face—and whose snoring could register on a seismograph.

These are the dogs that command attention the moment they step into a room, not just for their size but for the aura they bring with them.

From the regal Great Dane to the shaggy, bear-like Tibetan Mastiff, the canine world is filled with breeds that have redefined the meaning of “big dog energy.”

Some were bred to guard livestock, others to rescue travelers from snowy mountain passes. But all of them have one thing in common: they’ve made history for just how huge they are.

This isn’t just a list of big breeds—it’s a rundown of the 15 largest dog species ever recorded, including specific individuals that shattered expectations (and maybe a few pieces of furniture).

These aren’t just “big good boys”—they’re the stuff of legend. So whether you’re a dog lover, a trivia buff, or just curious to see if your pooch could hold its own next to these titans, you’re in for a treat.

Just make sure you’ve got enough room on the couch—these gentle giants don’t do compact.

1. English Mastiff

The English Mastiff is often known as the largest dog by mass. Notably, Zorba held the record weighing in at a staggering 343 pounds.

His impressive stature at 37 inches tall left onlookers in awe. This breed is known for its calm demeanor, making them gentle giants. Despite their size, they are incredibly affectionate. Historically, English Mastiffs were war dogs and guards.

Today, they are loving family members and companions. Their short coat comes in various colors, adding to their majestic appearance. Often seen lounging comfortably, their presence is both soothing and impressive.

Their massive paws and broad chest add to their dignified look. A low-key lifestyle suits them well, with occasional bursts of playful energy. They’re a reminder of how grand size can coincide with gentle nature.

2. Great Dane

Zeus, the Great Dane, holds the world record for being the tallest. Standing at a remarkable 44 inches at the shoulder, he reached over 7 feet when on his hind legs.

Great Danes, often called gentle giants, have a friendly disposition despite their intimidating height. They were once used in hunting boars due to their strength and speed. Their elegant appearance is complemented by a sleek coat in various colors.

These dogs thrive on human companionship and love to be part of family activities. A large, spacious home suits their size and playful nature. Known for their loyalty and protective instincts, they’re great watchdogs.

Despite their size, they can be surprisingly agile and enjoy a good run. A Great Dane’s presence is truly unforgettable.

3. Saint Bernard

Renowned for their role as alpine rescuers, Saint Bernards are truly iconic. These dogs can weigh between 180 to 260 pounds and possess a robust build. Their gentle eyes and expressive faces make them endearing companions.

Originally bred for rescue work in the Swiss Alps, they are equipped to handle extreme conditions.

Their thick, dense coat provides warmth, while their calm temperament makes them excellent family pets. Saint Bernards are known for their patience and are great with children.

Their impressive strength is complemented by a gentle nature. Despite their size, they move with surprising grace. A spacious living environment with ample room to roam suits them best. Their legacy in search and rescue is celebrated worldwide.

4. Irish Wolfhound

Irish Wolfhounds are legendary for their height, with males standing 32 to 35 inches tall. These gentle giants were originally bred for hunting wolves in Ireland. Despite their daunting size, they have a calm and friendly disposition.

Their wiry coat comes in various shades, adding to their rugged charm. Known for their loyalty and grace, they make loving companions. An open space suits their need for exercise and exploration.

Their long legs and slender build give them a graceful appearance.

With a history dating back to ancient times, they carry an air of nobility. Irish Wolfhounds are known for their intelligence and gentle nature. Their presence is both calming and impressive, leaving a lasting impact on those who meet them.

5. Newfoundland

With hearts as big as their paws, Newfoundlands are gentle water-loving giants. They can weigh between 150 to 180 pounds and stand up to 28 inches tall.

Their swimming prowess is unmatched, thanks to their webbed feet and powerful build. Originally bred in Newfoundland for water rescue, they are natural swimmers. Their thick, water-resistant coat keeps them warm in cold waters.

Known for their sweet and calm demeanor, they are excellent family companions. They thrive in environments where they can swim and explore. Despite their size, they are gentle with children and other pets.

Newfoundlands are known for their intelligence and eagerness to please. Their loyal nature and imposing presence make them unforgettable.

6. Leonberger

Leonbergers are known for their majestic appearance and friendly demeanor. This fluffy German breed can weigh up to 170 pounds and stand 31 inches tall. Their beautiful, thick coat comes in various shades, adding to their regal look.

Known for their gentle nature, they are excellent with families and children. Originally bred for companionship, they are loyal and loving dogs. A spacious home with a large yard suits their size and playful nature.

Leonbergers enjoy being part of family activities and are eager to please. Their calm and dignified presence is complemented by their intelligence. They are known for their patience and adaptability.

Despite their size, they move gracefully and with purpose.

7. Tibetan Mastiff

The Tibetan Mastiff is often mistaken for a lion due to its impressive mane-like coat. Weighing up to 160 pounds, these dogs have a massive frame that commands respect.

Originally bred by Tibetan nomads for guarding livestock from predators, they are known for their protective instincts.

Despite their imposing appearance, they are gentle with their family and loved ones. Their thick coat comes in various colors and requires regular grooming.

Tibetan Mastiffs are independent and intelligent, making them excellent guardians. They thrive in environments where they can roam and patrol their territory. Known for their loyalty, they form strong bonds with their family.

8. Anatolian Shepherd

Anatolian Shepherds are renowned for their strength and loyalty. Typically weighing between 90 to 150 pounds, some individuals exceed 170 pounds. These dogs were originally bred in Turkey for guarding livestock.

Their protective instincts are unmatched, making them excellent guardians. Despite their formidable size, they are gentle with their family. Anatolian Shepherds have a short, dense coat that comes in various shades.

They are known for their intelligence and independence. A spacious environment where they can patrol and explore suits them best. Their strong build and alert expression make them natural protectors. Despite their size, they are agile and quick.

9. Boerboel

Originating in South Africa, Boerboels are powerful and muscular dogs. Weighing between 150 to 200 pounds, they have a robust build designed for guarding.

Known for their protective instincts, they are excellent family guardians. Their short coat is easy to maintain and comes in various colors. Despite their formidable appearance, they are gentle and affectionate with their family.

Boerboels are intelligent and confident, making them reliable companions. A spacious living environment with a yard suits their size and energy levels. They thrive on human companionship and enjoy being part of family activities.

Their imposing presence and alert expression make them natural protectors. Boerboels are known for their loyalty and dedication.

10. Caucasian Shepherd Dog

Caucasian Shepherd Dogs are known for their immense size and strength. Weighing up to 200 pounds, they are one of the largest dog breeds.

Originally bred in the Caucasus Mountains for guarding livestock against predators, they are natural protectors.

Their thick, dense coat provides insulation in harsh climates. Despite their imposing appearance, they are gentle with their family.

Known for their loyalty, they form strong bonds with their loved ones. A spacious environment where they can patrol suits them best.

Caucasian Shepherds are intelligent and independent thinkers. Their watchful eyes and alert expression make them excellent guardians. Despite their size, they move with surprising agility.

They have a dignified and commanding presence, embodying strength and confidence.

11. Kangal

Kangals are renowned for their immense strength and protective instincts. Weighing between 140 to 180 pounds, they are formidable guardians. Originally bred in Turkey for protecting livestock, they have a strong guarding instinct.

Known for their loyalty and intelligence, they form strong bonds with their family. Kangals have a short, dense coat that comes in various shades. Their powerful build and alert expression make them natural protectors.

A rural environment where they can patrol suits them best. Despite their size, they are agile and quick learners.

Kangals are known for their calm demeanor and dedication. Their commanding presence and vigilant nature make them admirable companions.

They are reliable and dependable guardians, embodying strength and confidence.

12. Komondor

Komondors are instantly recognizable by their unique corded coat. Weighing between 100 to 130 pounds, they have a distinctive and memorable appearance.

Originally bred in Hungary for guarding livestock, they are natural protectors. Despite their unusual look, they are gentle and affectionate with their family. Their corded coat requires regular maintenance but provides insulation in harsh weather.

Komondors are independent and intelligent thinkers. A spacious environment where they can patrol suits them best.

Known for their loyalty and dedication, they form strong bonds with their family. Their friendly demeanor and alert expression make them excellent companions.

Despite their size, they move with surprising agility. Komondors are truly one-of-a-kind, embodying strength and uniqueness.

13. Bernese Mountain Dog

Bernese Mountain Dogs are known for their striking tri-color coat and friendly demeanor. Weighing between 110 to 150 pounds, some males exceed this range.

Originally bred in Switzerland for farm work, they are strong and reliable. Their thick coat provides warmth in cold climates.

Known for their gentle nature, they are excellent family companions. Bernese Mountain Dogs thrive in environments where they can explore and work.

Their friendly disposition and loyalty make them beloved pets. Despite their size, they are gentle with children and other animals.

They are intelligent and eager to please, making them easy to train. Their warm and welcoming expression is complemented by their strong build. Bernese Mountain Dogs are truly remarkable companions.

14. Scottish Deerhound

Scottish Deerhounds are known for their height and graceful appearance. Males can stand up to 32 inches tall at the shoulder. Originally bred in Scotland for hunting deer, they are agile and swift. Despite their lanky appearance, they have a muscular frame that grants them power.

Known for their gentle and friendly nature, they are excellent companions. Scottish Deerhounds thrive in environments where they can run and explore. Their wiry coat comes in various shades and requires regular grooming.

Despite their size, they are calm and gentle with their family. They are intelligent and independent, making them reliable companions. Their elegant stature and calm demeanor make them unforgettable.

15. Neapolitan Mastiff

Neapolitan Mastiffs are known for their massive size and distinctive wrinkles. Weighing over 150 pounds, they have a broad and imposing stature. Originally bred in Italy for guarding, they are natural protectors.

Their wrinkled jowls and massive heads add to their unique appearance. Despite their formidable size, they are gentle and affectionate with their family.

Neapolitan Mastiffs are loyal and devoted companions. A spacious environment with a yard suits their size and energy levels.

Their short, dense coat is easy to maintain. Known for their calm demeanor and protective instincts, they make excellent guardians.