10 Largest Dog Breeds in the World

english mastiff sitting next to a mini horse

While some people find large dogs overwhelming, others may be looking for a dog large in size. Large dogs can make wonderful family companions. If you’re looking for a lovable large dog, here are some of the largest dog breeds in the world:

1. English Mastiff

Just as the name mastiff implies, English Mastiffs are one of the biggest breeds out there. The average English Mastiff grows to be approximately 25-35 inches tall and weighs around 120-220 pounds.

Although they descended from ancient war dogs, they are loving and docile, and make great family companions. English Mastiffs are loyal and intelligent. Due to their size, English Mastiffs may not be best for the elderly or small children as there is a chance they could knock them over.

2. Irish Wolfhound

Previously used as a hunting dog, Irish Wolfhounds are another large breed of dog. Irish Wolfhounds can grow as tall as 30-32 inches and weigh between 105-120 pounds.

Known for scaring off even the boldest wolves, the Irish Wolfhounds of today are calm and serene. This breed is graceful like the Greyhound and can run at high speeds. Good with kids, this serene hound is a great family companion if you’re looking for a dog of a substantial size.

3. Newfoundland

Originating from the province of Newfoundland, Canada, this giant breed is often known for their love of swimming! In fact, they are well-known as one of the dog breeds that love water. Their webbed paws and water-resistant coat give them an advantage at water sports and they were originally bred to work with fishermen in Newfoundland.

Newfoundlands are big dogs! The average height of a fully-grown Newfoundland is about 26-28 inches tall and they can weigh about 100-150 pounds. If you’re looking for a large dog to participate in watersports with, Newfoundlands might be the right pick for you.

4. Great Dane

Great Danes are arguably one of the tallest dog breeds. They resulted from crosses between Irish Wolfhounds and English Mastiffs, which explains the large stature. Great Danes can reach 34 inches in height.

One of the facts about Great Danes is that, when standing on hind legs, they can be taller than most people! The males can weigh up to 200 pounds, while the females typically range from 100-130 pounds.

Bred for German nobility, Great Danes hunted boars and other large prey, and protected the noble’s grand estates. Now, Great Danes are known for their patient and playful nature.

Their size alone is enough to ward off strangers and they will be courageous to protect their home if need be. Great Danes are wonderful family dogs and will make friends easily. Despite their huge size, they are one of the best large dog breeds for small homes.

5. Saint Bernard

Bred in a Swiss Monastery to aid monks in dangerous mountain travels, Saint Bernards are another one of the largest dog breeds in the world. Saint Bernards aided monks in searching for lost travelers from Rome, as well as helped to haul goods to farms and dairies in the valley. They also guarded and herded livestock.

Saint Bernards typically grow to about 26-30 inches tall and weigh about 120-130 pounds. This breed is highly trainable and eager to please. Saint Bernards are often called gentle giants and are lovable and loyal dogs.

Some facts about Saint Bernards are that they are excellent with children, dogs, and even other pets, and have been referred to as “nanny dogs”. You’ll find it hard to resist their sweet faces and soft eyes.

6. Dogue De Bordeaux

Also known as the French Mastiff, the Dogue De Bordeaux is an ancient breed that originated in France. These stocky dogs were known as guardians of livestock but have had many roles in their lengthy history.

Despite their gigantic size, the Dogue De Bordeaux is loving and affectionate, with a sensitive soul. A fully grown Dogue De Bordeaux can reach 27 inches in height and can weigh up to 150 pounds.

7. Anatolian Shepherd

Anatolian Shepherds are an intelligent and ancient breed hailing from what is now modern-day Turkey. Writings from as far back as 2000 B.C. detail this breed as “large and strong, with a heavy head”. Used as guardians, this breed watched over various livestock and protected them from prey.

This breed is large, with the average size of males weighing up to 150 pounds while the females weigh 80-120 pounds. The average height of a male is 29 inches, and the females can grow to 27 inches.

Some facts about Anatolian Shepherds are that they are strong-willed and are leaders. They will be excellent guard dogs for your family, or livestock, but will also be loving and loyal companions.

8. Great Pyrenees

Great Pyrenees descend from large, hardworking mountain dogs with a fluffy, thick coat. Powerful enough to deter large prey from hunting livestock, Great Pyrenees dogs today are now mellow and loyal family guardians.

This majestic breed is quite large, with the average height of males ranging from 27-32 inches and weighing well over 100 pounds. Females can grow up to 27 inches in height and weigh over 85 pounds.

9. Neapolitan Mastiff

Neapolitan Mastiffs are large, but docile dogs with endearing, wrinkly faces. This breed has been warding off intruders since Ancient Rome. Neapolitan Mastiffs worked as war dogs, as well as guardians. Now, Neapolitan Mastiffs are happy to be family dogs with a sweet and serene temperament.

The average male Neapolitan Mastiff grows to be about 26-31 inches in height and weighs about 150 pounds. The female is slightly smaller, growing to be about 24-29 inches in height and weighing up to 110 pounds.

10. Leonberger

The Leonberger is another one of the largest dog breeds. Originating in Germany, this breed is strong, but full of grace. Males can grow up to 31 inches and weigh up to 170 pounds. Females grow to be 25-29 inches in height and weigh 90-140 pounds.

Leonbergers are known for their triangle ears and a black facemask that frames their kind eyes. The males have a dramatic mane around their neck, much like a lion. They are intelligent and hardworking dogs. Leonbergers are friendly, but not gullible.

These are just a few of the largest dog breeds in the world. If you’re thinking of bringing one of these dogs home, be sure you’re prepared for their size!