Top 12 Largest Dog Breeds Across the Globe

Bred for hard work, the Bernese Mountain Dog boasts a robust and powerful physique. Among the largest dog breeds globally, many are also considered excellent companions. Despite their massive size, they are known for their calm demeanor, affectionate nature, and gentle temperament.

These dogs are often fiercely loyal to their families and can reach weights of up to 170 pounds (77 kilograms) when fully grown. This raises the question: Which dog breed is the largest in the world? Additionally, is there a distinction between large and giant dog breeds?

Large Dog Breeds vs. Giant Dog Breeds

Dog breeding experts have established a standardized classification system, categorizing large dog breeds as those weighing 50 pounds (22.6 kilograms) or more and standing at least 24 inches (61 centimeters) tall.

Giant dog breeds, on the other hand, start at 100 pounds (45.3 kilograms) and are significantly larger in size. These breeds often serve specific roles, such as herding, hunting, or guarding. Despite their imposing stature, many, like the Great Pyrenees, are known as gentle giants.

For dog enthusiasts, here’s a glimpse at some of the largest dog breeds recognized by the American Kennel Club (AKC). This list highlights twelve breeds by weight, along with a few Guinness World Record holders for added interest.

1. Saint Bernard

Originating in the Swiss Alps, the Saint Bernard is famously depicted with a small wooden barrel around its neck. Despite its massive size, weighing up to 180 pounds (81.6 kilograms), it is remarkably agile and excels in search and rescue operations, particularly for those lost in snow or trapped by avalanches.

2. Great Danes

This majestic breed can weigh up to 175 pounds (79.4 kilograms). Known for its elegance, energy, and friendly nature, the Great Dane is a beloved working dog.

Guinness World Record Holders

Great Danes dominate the Guinness World Records for the tallest dogs, with two record-holders both named Zeus. The current titleholder is a 2-year-old Great Dane from Bedford, Texas, named Zeus, who measured 3 feet, 5.18 inches (1.046 meters) tall in March 2022, earning him the title of the tallest living dog.

However, the tallest dog ever was also a Great Dane named Zeus, hailing from Otsego, Michigan. This Zeus stood slightly taller at 3 feet 6.7 inches (1.12 meters) and passed away in September 2014.

3. Leonberger

Known for its drafting skills, the Leonberger features a distinctive, lion-like mane, which inspired its French-derived name Leon. The breed traces its roots to Leonberg, Germany, where Heinrich Essig aimed to develop a dog resembling the lion depicted on the town's crest.

Initially bred as a companion for European nobility, the Leonberger later transitioned into a versatile working dog.

4. Anatolian Shepherd

This intelligent and devoted working breed, weighing around 150 pounds (68 kilograms), excels at protecting livestock. Despite their imposing appearance, they are gentle by nature.

These calm and composed dogs rely on their intimidating presence rather than aggression to deter predators. Today, Anatolian Shepherds remain highly valued as guard dogs on ranches.

5. Newfoundland

For water enthusiasts seeking a large canine companion, the Newfoundland is an ideal choice. This robust working breed, weighing up to 150 pounds (68 kilograms), features webbed feet and a water-resistant coat, making it perfectly suited for aquatic activities.

Originally, this breed assisted Canadian fishermen by hauling nets from icy waters and performing water rescues. Beyond its impressive size, the Newfoundland is known for being a gentle giant that is highly trainable.

6. Bullmastiff

Several mastiff breeds fall into the giant category, with the Bullmastiff being a prime example, weighing up to 130 pounds (58.97 kilograms). Bred in the 19th century to protect English game preserves and estates, they are trainable but can exhibit stubbornness, making early socialization and consistent training essential.

Other mastiff breeds include:

7. Black Russian Terrier

Weighing around 130 pounds (58.97 kilograms), this giant terrier is both formidable and highly intelligent. Developed by the Soviet government in the 1930s as a guard and police dog, the Black Russian Terrier, also known as Stalin's dog, remains fiercely loyal and protective of its family.

8. Irish Wolfhound

Weighing around 120 pounds (54.4 kilograms), the Irish Wolfhound may not be the heaviest, but it holds the title of the tallest dog breed according to the AKC. Historically, it was bred for hunting large game.

With roots tracing back to ancient times, this giant breed rose to prominence by helping to manage Ireland's wolf population. By the 1700s, the near-extinction of wolves in Ireland also threatened the breed's survival. Fortunately, they made a comeback and are now cherished as affectionate and family-oriented pets.

9. Bernese Mountain Dog

This gentle giant can weigh up to 115 pounds (52.2 kilograms) and is a beloved member of the giant breed category. Originating in Switzerland as a working dog, Bernese Mountain Dogs are well-suited to cold climates.

Historically used on farms for carting or drafting—essentially pulling carts or wagons—their friendly and calm demeanor makes them ideal family pets and companions.

10. Scottish Deerhound

Weighing around 110 pounds (49.9 kilograms), the Scottish Deerhound resembles the Irish Wolfhound and holds the title of Scotland's royal dog. It stands among the tallest breeds globally, reaching 30 to 32 inches (76 to 81 centimeters) in height.

Known for its agility in deer hunting, this breed is deeply affectionate and bonds closely with its family. However, its sensitivity can lead to separation anxiety, making it better suited for those who spend most of their time at home.

11. Cane Corso

Cane Corsos often weigh over 100 pounds (45.4 kilograms). The American Kennel Club describes them as "muscular and athletic, moving with grace and agility. Historically, they served as property guardians and hunters of challenging prey like wild boar."

Originating in Sicily, southern Italy, this Italian Mastiff gained immense popularity in ancient Rome. However, its numbers drastically declined during World War II.

Rediscovered in a secluded Italian village in the 1970s, dedicated breed enthusiasts worked to revive and reintroduce the Cane Corso to America in the 1980s. Known for their loyalty, they are cautious around strangers but fiercely protective of their families.

12. Great Pyrenees

Perhaps only rivaled by a polar bear in appearance, the Great Pyrenees is easily identified by its fluffy white coat. Despite its thick double coat, it is surprisingly low-maintenance, as it resists dirt and tangles.

This regal breed is both large and powerful, often weighing over 100 pounds (45.4 kilograms). Historically, it worked alongside shepherds to guard livestock. Known for their patience and independence, Pyrenees are also fearless when it comes to protecting their charges from predators.