13 Dog Breeds Massive In Size, But Even Bigger In Heart - iHeartDogs.com

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13 Dog Breeds Massive In Size, But Even Bigger In Heart

By: Scott Haiduc
Scott Haiduc is the Director of Publishing for iHeartDogs, iHeartCats and The Hero Company. When not working, Scott spends his time on the farm, taking care of his animals and crops.Read more
| June 2, 2025
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Big dogs with even bigger hearts have a way of leaving a lasting impression. Their large frames might seem intimidating at first, but many of these breeds are famously gentle, calm, and incredibly loyal. They make wonderful companions for families, children, or anyone who loves a dog that can protect, comfort, and cuddle in equal measure. Whether bred to guard flocks, rescue travelers, or simply be loving companions at home, these dogs show us that strength and sweetness are a powerful pair and that big truly can mean deeply, unshakably tender.

Great Dane

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Known as the “Apollo of dogs,” the Great Dane is one of the tallest breeds in the world. Despite their imposing stature, they are famously gentle and affectionate, often earning the nickname “gentle giants.” Great Danes are known to be friendly towards children and other animals, including cats. Their calm demeanor and friendly nature make them excellent family companions. However, their size requires ample space and regular exercise to keep them healthy and happy.

Newfoundland

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The Newfoundland is a powerful working dog known for its strength, calmness, and protective nature. Originally bred to assist fishermen, they are excellent swimmers and have been known to rescue people from drowning. Newfoundlands are gentle and patient, especially with children, making them ideal family pets. Their thick, water-resistant coat requires regular grooming to keep it in good condition. Despite their size, they are known for their sweet temperament and loyalty.

Saint Bernard

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Saint Bernards are iconic for their role in alpine rescues, but their temperament is what truly sets them apart. They are calm, patient, and gentle, especially with children, making them excellent family dogs. Their large size and strength are matched by their affectionate and loyal nature. Saint Bernards require regular exercise and grooming to maintain their health and coat. Their friendly disposition makes them wonderful companions for those who can accommodate their size.

Bernese Mountain Dog

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Bernese Mountain Dogs are large, sturdy dogs known for their calm and affectionate nature. They are gentle with children and other animals, making them excellent family pets. Originally bred for farm work in the Swiss Alps, they are hardworking and loyal. Their thick, tricolored coat requires regular grooming to keep it healthy. Bernese Mountain Dogs thrive in cooler climates and enjoy outdoor activities with their families.

English Mastiff

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The English Mastiff is one of the largest dog breeds in terms of mass, known for its gentle and loving nature. Despite their size, they are calm and affectionate with their families. They are protective but not aggressive, making them excellent companions and watchdogs. Their short coat is easy to maintain, but they do require regular exercise to prevent obesity. Early socialization and training are important to ensure they are well-behaved and comfortable around strangers.

Great Pyrenees

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The Great Pyrenees is a majestic breed known for its calm and gentle demeanor. Originally bred to guard livestock, they are protective yet affectionate with their families. They are good with children and other pets, making them excellent family dogs. Their thick, white coat requires regular grooming to prevent matting. Great Pyrenees are independent thinkers, so consistent training and socialization are important from an early age.

Irish Wolfhound

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The Irish Wolfhound is the tallest of all dog breeds, known for its gentle and friendly nature. Despite their size, they are calm and affectionate, making them excellent companions. They are good with children and other pets, though their size requires supervision during play. Their rough coat needs regular grooming to keep it in good condition. Irish Wolfhounds enjoy regular exercise and thrive in homes with ample space.

Leonberger

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Leonbergers are large, majestic dogs known for their gentle and affectionate nature. They are calm and patient, making them excellent family pets, especially with children. Their thick, water-resistant coat requires regular grooming to prevent matting. Leonbergers are intelligent and eager to please, which makes training relatively easy. They thrive in active households where they can participate in family activities.

Dogue de Bordeaux

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The Dogue de Bordeaux, also known as the French Mastiff, is a powerful and muscular breed with a gentle heart. They are loyal and affectionate with their families, forming strong bonds with their owners. Their short coat is easy to maintain, but they do require regular exercise to stay healthy. Early socialization and training are important to ensure they are well-behaved and comfortable around strangers. Despite their imposing appearance, they are known for their calm and loving nature.

Komondor

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The Komondor is a large Hungarian breed known for its distinctive corded coat resembling dreadlocks. Originally bred to guard livestock, they are protective yet gentle with their families. Their unique coat requires regular maintenance to prevent matting and keep it clean. Komondors are intelligent and independent, so early training and socialization are essential. They thrive in homes where they have space to roam and a job to do.

Spanish Mastiff

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The Spanish Mastiff is a large and powerful breed known for its calm and dignified demeanor. Originally used to protect livestock from predators, they are protective yet affectionate with their families. Their thick coat requires regular grooming to keep it in good condition. Spanish Mastiffs are intelligent and independent, so consistent training and early socialization are important. They are best suited for homes with ample space and a secure yard.

Tibetan Mastiff

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The Tibetan Mastiff is a large and powerful breed known for its independence and protective nature. Originally bred to guard livestock in the Himalayas, they are loyal and affectionate with their families. Their thick double coat requires regular grooming to prevent matting. Tibetan Mastiffs are intelligent and strong-willed, so early training and socialization are essential. They thrive in homes with experienced owners who can provide firm and consistent leadership.

Bullmastiff

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The Bullmastiff is a large and muscular breed known for its protective yet gentle nature. Originally bred to guard estates, they are loyal and affectionate with their families. Their short coat is easy to maintain, and they require regular exercise to stay healthy. Bullmastiffs are intelligent and respond well to consistent training and early socialization. They are best suited for homes with experienced owners who can provide firm and consistent leadership.

The Bigger the Pup, the Softer the Snuggles

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Living with a massive dog means embracing slobbery kisses, oversized beds, and a tail powerful enough to clear a coffee table in seconds. But far beyond the mess and muscle is the true gift of sharing life with a gentle, loyal companion who offers unwavering love. These gentle giants may take up more space than expected, but they give back so much more in return. If you’re ready for a big commitment with even bigger rewards, one of these breeds might be the perfect match for your heart and home.

 

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