Picture this: A giant dog slowly walks toward you, paws the size of dinner plates, a deep bark echoing in the air—and then comes the surprise.
A soft nudge, a calm gaze, and a heart that’s even bigger than the body. That’s the magic of giant dog breeds.
They don’t just take up space; they fill it with warmth, loyalty, and a gentle nature that melts even cautious dog lovers.
Many of the tallest dog breeds were originally bred to guard livestock, protect homes, or work alongside humans in tough environments. Yet behind their powerful build and impressive height lies a calm temperament and an affectionate dog personality.
These gentle giants often form strong bonds with family members and respond deeply to human emotions. Sadly, because of their size, many giant dogs end up as rescue dogs or are overlooked entirely.
But with early socialization, proper training, and a relaxed lifestyle, these massive dogs become loving companions and excellent family pets—proof that big dogs often come with the biggest hearts.
Magnificent, Overlooked Giant Dog Breeds Explained
1. Neapolitan Mastiff
Ancient Looks, Legendary History
This powerful dog breed has roots that stretch back nearly 5,000 years—yes, really. Mastiff-type dogs once walked beside warriors and travelers, guarding camps and homes across Europe.
History lovers often link this giant breed to the Mastiffs of Epirus, trusted protectors during Roman times. Basically, this massive dog didn’t follow trends—it created them.
Big Body, Soft Heart
At first glance, this giant dog breed looks intimidating, with loose skin, massive heads, and a deep bark that means business.
But here’s the fun twist: behind that scary face lives a gentle giant who loves family members and enjoys a relaxed lifestyle.
Loyal companions by nature, they form strong bonds and show a calm temperament indoors. Exercise is slow and steady—think short walks, not marathons. Early socialization and proper training are key, especially around other pets.
Treat them right, and you’ll have a devoted companion who proves that giant dogs often have the biggest hearts.
2. Scottish Deerhound
Majestic and Tall
The Scottish Deerhound, often called the “Royal Dog of Scotland,” is a true giant among coursing hounds. Standing up to 32 inches at the shoulder and weighing around 110 pounds, this breed is among the tallest dog breeds.
With a long neck, tapered head, and flowing blue-gray coat, it’s like watching a living statue of nobility glide across the field.
Grace in Motion, Charm at Rest
Despite the harsh, wiry coat, grooming is a breeze—weekly brushing and occasional nail trims keep this majestic giant looking sharp.
But don’t be fooled: exercise is essential. Deerhounds need space to run freely, relishing the joy of motion they were bred for. As per the AKC, a secure yard or open field is ideal; these gentle giants aren’t fans of tiny city walks.
With early socialization and plenty of daily activity, Scottish Deerhounds grow into affectionate, loyal companions. They balance their majestic energy with relaxed couch cuddles later, proving big dogs have big hearts!
3. Tibetan Mastiff
Lion’s Mane Majesty
Tibetan Mastiffs are one of the best giant dogs that turn heads with their lion-like mane and powerful build. Originally bred to guard vast lands, these largest dog breeds are fiercely protective of their families and property.
With bushy tails that curl over their backs and catlike feet, they balance strength with elegance—truly a majestic and elegant breed.
Guardians of the Himalayas
As per WebMD, these loyal companions were once traveling partners for sheepherders and traders, defending against predators like snow leopards and wolves.
Today, they retain their protective instincts, staying alert and watchful around home and family.
Grooming is simple—weekly brushing is usually enough to maintain their thick double coat.
Despite their imposing appearance, Tibetan Mastiffs are affectionate with loved ones and form strong bonds with their humans. With proper early socialization and care, these excellent guard dog breeds are loyal companions and a gentle breed rolled into one.
4. Bloodhound
Gentle Sniffer with a Noble Heart
Bloodhounds are famous for their long droopy ears, wrinkled jowls, and soulful eyes that give them a mournful, dignified look. Despite their imposing appearance, these best giant dog breeds are patient, mild-mannered, and exceptionally good with children.
They form strong bonds with family members and usually get along well with other pets.
Single-Minded Scent Detectives
Bloodhounds are legendary for their noses. Once they catch an interesting scent, they follow it relentlessly, ignoring commands along the way.
Perfected by St. Hubert in the 7th century, these dogs were once used to track game and later people.
As per Chewy, today, they assist in search-and-rescue and law enforcement, with their trails even admissible in court.
Adolescent Bloodhounds can be clumsy, curious, and drooly, but with patience, proper training, and daily exercise, they mature into loyal, typically gentle and affectionate companions. Big noses, big hearts, and enough drool to keep life fun!
5. Leonberger
Gentle Giant with a Heart of Gold
The Leonberger is one of those majestic and elegant breeds that make dog lovers stop and smile.
With a thick double coat, massive size, and lion-like mane, this giant dog breed looks like a myth brought to life. Originally bred as a working and family companion, Leonbergers are big-hearted, gentle giants who adore being around their people.
Calm Temperament, Everyday Fun
Despite their size, Leonbergers are known for their calm temperament and affectionate nature.
They’re excellent family pets that get along well with kids and other animals, making them perfect for large-dog enthusiasts who want loving companions.
These large dogs need regular exercise to stay happy and healthy, but they also love relaxed moments, cuddled up with the family. With early socialization and consistent training, Leonbergers grow into loyal, reliable, and wonderful members of any home. Big dogs, bigger hearts!
6. Estrela Mountain Dog
Ancient Guardian of the Mountains
The Estrela Mountain Dog, or cão da Serra da Estrela, is a large, athletic breed from Portugal’s Serra da Estrela mountains. Originally bred to guard livestock and homesteads, this giant dog combines strength with intelligence and loyalty.
Its goat-hair-like coat comes in long or short varieties, perfect for withstanding harsh mountain climates.
Loyal Protector and Family Companion
Calm but fearless, Estrelas are instinctively protective, especially of children. Early socialization and consistent early training are essential to manage their independent-minded nature and occasional territorial barking.
As per Wikipedia, while they thrive as family pets, these large dogs also retain their guardian instincts, making them exceptional watchdogs. Whether patrolling flocks or lounging with the family, the Estrela Mountain Dog balances strength, loyalty, and affection.
With proper guidance and daily activity, this giant breed proves that some of the oldest dog breeds in the Iberian Peninsula are also the most devoted companions.
7. Dogue de Bordeaux
Powerful Build, Big Heart
The Dogue de Bordeaux is a powerful dog breed with a massive head, sturdy body, and an expressive face that seems to say, “I’m big, but I’m all yours.” Originally bred as a guardian and protector, this giant dog carries a noble and loyal spirit that endears it to families worldwide.
Known as one of the largest dog breeds, the Dogue de Bordeaux blends strength with affection in a way few breeds can match.
Loyal Companion, Gentle at Heart
Despite its formidable appearance, this breed is often a gentle giant at home, deeply devoted to its people and surprisingly calm indoors.
They form strong bonds with family members and can be wonderfully patient with children when properly supervised. Early socialization and consistent training help channel their protective nature into well-mannered behavior.
Exercise needs are moderate—daily walks and playtime keep them happy and healthy. With love, patience, and structure, the Dogue de Bordeaux makes a loyal, affectionate companion that proves massive dogs can have even bigger hearts.
Conclusion
Giant dog breeds are more than just size and strength—they’re gentle giants with hearts as big as their bodies.
From the majestic Neapolitan Mastiff to the agile Scottish Deerhound, the protective Tibetan Mastiff, the determined Bloodhound, the loyal Leonberger, the rugged Estrela Mountain Dog, and the powerful Dogue de Bordeaux, each breed carries a unique blend of loyalty, intelligence, and affection.
These overlooked giants form strong bonds with their families, showing patience, devotion, and an uncanny ability to connect with human emotions.
While their size can be intimidating, their gentle nature, protective instincts, and loving personalities make them exceptional companions, whether as family pets, working dogs, or loyal guardians.
With proper socialization, training, and daily exercise, giant dogs prove that the best companions often come in the biggest packages.
