10 Largest Mastiff Dog Breeds in the World

Written By

Mathew Abraham

Updated on

Mathew Abraham

Meet Mathew, Cat Dad and Animal Advocate! Mathew is the editor at PawDown, overseeing content strategy and quality. He's in charge of carefully curating the best pet stories, tips, and advice for you.

Mastiff Dog
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Mastiffs are known for their massive size, strength, and loyalty, making them some of the most impressive dog breeds in the world. Despite their intimidating appearance, these gentle giants are calm, affectionate, and deeply devoted to their families. With roots in guarding, protecting, and companionship, Mastiffs have a long history of working alongside humans. Let’s explore the 10 largest Mastiff breeds, highlighting their unique traits, impressive stature, and the qualities that make them beloved by dog lovers everywhere.

1. English Mastiff

English Mastiff
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The English Mastiff is the largest Mastiff breed and holds the record for being the heaviest dog in the world. Males can weigh between 160 and 230 pounds, with some even surpassing 250 pounds. Despite their intimidating size, English Mastiffs are gentle giants known for their calm and affectionate demeanor. They are excellent family dogs, forming strong bonds with their owners and displaying a protective nature when needed. Their sheer size and loving personality make them iconic among Mastiff breeds.

2. Neapolitan Mastiff

Neapolitan Mastiff
madrabothair/123RF

With their massive frames and wrinkled skin, Neapolitan Mastiffs are hard to miss. Males typically weigh between 130 and 155 pounds, though some exceed this range. Originally bred as guard dogs in ancient Rome, these imposing canines are fiercely loyal and protective of their families. While their size and deep bark can deter intruders, Neapolitan Mastiffs are affectionate and gentle with those they trust. Their unique appearance and commanding presence set them apart from other large breeds.

3. Tibetan Mastiff

Woman kneeling beside a black Tibetan Mastiff
Senivpetro/Freepik

The Tibetan Mastiff is a legendary breed known for its impressive size and thick double coat. Males can weigh up to 160 pounds and stand over 26 inches tall at the shoulder. These majestic dogs were originally bred to protect livestock and monasteries in the Himalayas, showcasing unmatched bravery and independence. While they are protective of their families, Tibetan Mastiffs are also calm and reserved, making them excellent companions for experienced owners. Their dignified demeanor adds to their allure as one of the largest Mastiff breeds.

4. Spanish Mastiff

Spanish Mastiff
duranphotography/123rf

The Spanish Mastiff is a colossal breed, with males typically weighing between 140 and 200 pounds. Bred to guard livestock in Spain, they are known for their protective instincts and loyalty. Despite their intimidating size, Spanish Mastiffs are gentle and affectionate with their families, making them excellent companions. Their calm temperament and strong guarding abilities make them a valuable addition to homes with large properties or farms. These giants thrive with proper training and space to roam.

5. Boerboel

boerboel
photo/pixabay

Originating from South Africa, the Boerboel is a powerful Mastiff breed bred to guard farms and homes. Males can weigh between 150 and 200 pounds and possess a muscular, athletic build. Known for their courage and intelligence, Boerboels are highly protective of their families while being gentle and affectionate at home. They require consistent training and socialization due to their size and strength. When properly raised, Boerboels are loyal, dependable, and excellent family protectors.

6. Cane Corso

cane corso
tommy/pixabay

The Cane Corso, also known as the Italian Mastiff, is a large and muscular breed weighing between 90 and 120 pounds, though some males reach up to 140 pounds. Despite being slightly smaller than other Mastiff breeds, their agility and power are unmatched. Originally used as guard dogs and hunters, Cane Corsos are confident and loyal to their families. They are intelligent and thrive with structured training and mental stimulation. Their imposing presence and devotion make them a popular choice among Mastiff enthusiasts.

7. Dogue de Bordeaux

dogue-de-bordeaux-mastiff
photo/pixabay

The Dogue de Bordeaux, or French Mastiff, is known for its massive head and muscular body. Males weigh between 110 and 150 pounds and exude strength and confidence. These dogs were historically used for pulling carts and guarding estates in France. Despite their rugged appearance, Dogues de Bordeaux are affectionate and gentle with their families. They are calm and patient, making them great companions for households seeking a loyal and protective guardian.

8. Bullmastiff

Bullmastiff dog wearing a blue patterned bandana, walking on grass
AlbanyColley/Pixabay

Bullmastiffs are powerful dogs with a solid build, weighing between 110 and 130 pounds. Originally developed to protect estates from poachers, they are courageous and highly protective. Bullmastiffs are also gentle and affectionate with their families, making them excellent companions. Their intelligence and calm nature allow them to adapt well to family life, but they require consistent training to channel their protective instincts. These dogs are a perfect blend of strength and sensitivity.

9. Pyrenean Mastiff

Pyrenean Mastiff
Kelly/Pexels

Hailing from Spain, the Pyrenean Mastiff is a giant breed known for its calm and gentle temperament. Males typically weigh between 130 and 200 pounds and possess a thick, weather-resistant coat. Originally bred to guard livestock in the Pyrenees Mountains, these dogs are highly protective yet affectionate with their families. They are known for their patience and ability to get along well with children and other pets. Their impressive size and kind nature make them ideal for families with ample space.

10. Kangal (Anatolian Shepherd Dog)

Kangal – 743 PSI
Tunaolger/Pixabay

Though not always classified as a Mastiff, the Kangal shares many Mastiff-like traits, including its size and guarding instincts. Males weigh between 110 and 145 pounds and are known for their incredible strength and agility. Bred to protect livestock in Turkey, Kangals are fearless and independent while being deeply loyal to their families. They require experienced owners who can handle their protective nature and ensure proper socialization. With the right training, they are devoted guardians and loving companions.

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