There’s something awe-inspiring about a giant dog walking into a room: size commands attention, but personality steals hearts. Yet, not all of these gentle giants get the recognition they deserve.
Many people assume large breeds are intimidating or high-maintenance, but some of the most overlooked giant dogs are exceptionally loyal, affectionate, and surprisingly adaptable. Whether it’s a massive companion who loves snuggles on the couch or a patient protector for your family, these breeds prove that size isn’t just about strength—it’s about heart.
Here, we’ll explore giant dog breeds that often fly under the radar but are remarkable in temperament, intelligence, and loyalty. You’ll discover gentle giants that balance power with affection, and strength with subtle charm.
If you’ve been searching for a majestic canine companion who’s more than just a pretty face—or size—get ready to meet breeds that redefine what it means to be large and lovable. These nanny dogs are big, bold, and truly exceptional in every way.
Did You Know? Despite their size, giant breeds like the Leonberger and Great Pyrenees are known for their calm, patient temperaments. Studies show large breeds often have slower metabolisms and lower anxiety levels than smaller dogs.
Best Giant Dog Breeds Often Overlooked But Exceptional
1. Spanish Mastiff
The Spanish Mastiff is the kind of dog that looks like it was carved out of a mountain and given a heart of gold.
Towering, majestic, and exuding quiet confidence, this breed has guarded flocks, farms, and families across the rugged hills of Spain for centuries — and it’s done so with the kind of grace only a true gentle giant can pull off.
At first glance, the Spanish Mastiff might seem intimidating — with a head as big as a boulder and a bark that could probably rattle a window two houses away. But don’t be fooled by the tough exterior; beneath that massive frame is a calm, dignified soul that values peace and loyalty above all else.
This big dog breed doesn’t pick fights — it ends them, quietly and decisively. Spanish Mastiffs are fiercely devoted to their families and surprisingly tender with children. They’ll watch over your home with quiet vigilance, lounging nearby like a living, breathing security system that occasionally snores.
A natural guardian: Calm yet alert, always watching.
Gentle with family: Protective but loving, especially with kids.
Independent thinker: Smart but needs firm, consistent leadership.
As per Wikipedia, when a stranger approaches, their “booming voice” will make sure everyone knows it. (Your mail carrier might not thank you, but your home will never feel safer.)
They do best in homes with space to stretch their legs and snooze in peace — apartment life isn’t really their scene. Training and socialization are key with this breed; once they respect you as their leader, their loyalty is rock-solid. They’ll guard you, your home, and even your sandwich if you’re not careful.
2. Scottish Deerhound
Meet the Scottish Deerhound — the elegant aristocrat of the dog world who looks like they just stepped out of a medieval tapestry and straight into your living room. Towering, graceful, and wrapped in a shaggy coat that seems designed for Highland mist, the Deerhound was once the pride of Scottish nobility.
Their job? Chasing down red deer across rugged moors at lightning speed. Today? These large dogs are more likely to chase sunbeams across your sofa. Often called “gentle giants,” Scottish Deerhounds are the epitome of calm nobility.
They’re dignified yet affectionate, and their idea of a perfect day includes a good gallop followed by an even better nap. Despite their impressive size, they’re not overbearing — just quietly present, like a loyal shadow with excellent posture.
Sweet-natured and loyal: Loves people but never overbearing.
Low-maintenance personality: Calm indoors, spirited outdoors.
Built for open spaces: Thrives best with room to stretch those long legs.
Training a Deerhound can feel a bit like negotiating with royalty: they’ll listen, but only if they think your request is reasonable. These dogs are intelligent and independent thinkers, so patience and positive reinforcement go a long way.
PetMD noted that because of their strong prey drive, Deerhounds and small pets (like cats or hamsters) might not make the best combo unless raised together from puppyhood. Outdoors, their inner hunter can awaken in an instant — so if they spot something small and fast, hold onto that leash!
If you’ve got the space (and don’t mind a few couch-sized naps), this elegant hound will bring both peace and poetry to your home.
3. Pyrenean Mastiff
If you’ve ever dreamed of having a giant teddy bear with a security system built in, look no further than the Pyrenean Mastiff.
Hailing from the breathtaking Pyrenees Mountains of Spain, this majestic breed once stood guard over flocks, bravely protecting sheep from wolves, bears, and the occasional thief. These days, they’re more likely to protect your couch, your snacks, and your heart — with equal dedication.
Despite their imposing size, Pyrenean Mastiffs are true gentle giants. Calm, noble, and incredibly affectionate, they’re the kind of dog that can make even a chaotic household feel peaceful. They adore their families and have a natural instinct to keep everyone — kids, cats, and even the neighbor’s chickens — safe and sound.
According to the American Kennel Club (AKC), these massive dogs bark to let you know when something’s amiss, but they’re not the type to sound the alarm over a passing butterfly. What really sets the Pyrenean Mastiff apart is their balanced temperament. They can flip seamlessly from vigilant guardian to loving companion.
Calm, confident, and courageous: A watchdog who doesn’t need to shout to be respected.
Smart and sensible: Knows when to protect and when to relax.
Minimal prey drive: More lover than hunter.
Around strangers, they’re cautious but composed — never aggressive without cause. Around friends, they’re warm and welcoming. And around children? They’re big, patient babysitters with paws the size of dinner plates and hearts to match.
Training is usually smooth sailing — these dogs are intelligent, observant, and eager to please (as long as you earn their respect). Just remember, they may drool… a lot. Think of it as their version of a love letter — slightly messy, but full of affection.
4. Dogue de Bordeaux
The Dogue de Bordeaux, affectionately called the French Mastiff, is basically a gentle giant in a wrinkly, drool-covered tuxedo. With a face that looks permanently concerned and a heart as big as its head (which, by the way, is enormous), this breed is a powerhouse of loyalty, affection, and quiet dignity.
Despite their intimidating looks — think “ancient warrior” meets “couch enthusiast” — the Dogue de Bordeaux is one of the sweetest dogs you’ll ever meet.
They form deep emotional bonds with their families and have an almost human level of devotion. Once they love you, they’re in it for life — through thick, thin, and gallons of slobber.
Gentle with family: Big body, soft soul — especially around kids.
Confident yet calm: A quiet guardian who doesn’t need to bark to command respect.
Independent thinker: Needs consistent, positive training.
However, they do have a touch of French independence (read: stubbornness). Training one requires patience, consistency, and a good sense of humor.
You can’t rush a Dogue; they like to think things through — preferably while lounging in their favorite spot and giving you that signature slow blink that says, “Oui, I heard you. I’ll get to it… eventually.”
Drool? Oh, there will be drool. Dogue owners know the sound — that soft “flop” of a drool string landing where you least expect it. But armed with a towel and a sense of humor, you’ll find it’s a small price to pay for the love and loyalty of this French masterpiece.
5. Greater Swiss Mountain Dog
The Greater Swiss Mountain Dog, or “Swissie” to those lucky enough to live with one, is basically the Swiss Army knife of giant dogs — strong, dependable, and ready for anything. With their striking tricolor coat and big, soulful eyes, they look like they just walked off a postcard from the Alps.
But don’t be fooled by their rugged looks — under that mountain-dog exterior is a goofy, affectionate companion who just wants to be part of the family action. Originally bred in Switzerland to pull carts, herd livestock, and guard farms, the Swissie is built like a tank but has the temperament of a gentle diplomat.
They’re alert and courageous when duty calls, but with family, they’re all warmth and wiggles. These dogs live for companionship — leave them alone too long, and they’ll make sure you know they’re not happy about it (usually with big, sad eyes that could melt a glacier).
Gentle giant energy: Protective yet patient with kids and other pets.
Alert guardian: Always aware of what’s going on — but not overly barky.
Family-first attitude: Prefers being indoors with loved ones over solitude.
Despite their size, Swissies are surprisingly good indoor dogs. They prefer being near their people over endless outdoor adventures — though a daily walk or romp in the park is a must to keep their sturdy bodies and big brains happy.
Greater Swiss Mountain Dog is the perfect mix of muscle and mush — a loyal protector who’s as happy guarding the homestead as he is napping by your feet. Just make sure your furniture is ready for a bit of mountain-level enthusiasm when they get excited!
6. Neapolitan Mastiff
If you’ve ever wanted a dog that looks like it walked straight out of an ancient Roman temple, the Neapolitan Mastiff is your guy.
With their massive frame, wrinkly face, and deep, soulful eyes, these dogs carry the aura of a gladiator — but deep down, they’re total softies who just want to nap on the couch (preferably taking up all of it).
Bred centuries ago in Italy to guard estates and families, the Neapolitan Mastiff (or “Neo” for short) is a living fortress — its mere presence is usually enough to make any intruder think twice.
But while they look fierce, Neos are famously calm, affectionate, and gentle in nature with the people they love. They’re loyal to the core and often develop a “velcro dog” personality, sticking to their humans like a shadow.
Low-energy companion: Perfect for calm homes and cozy lifestyles.
Devoted and affectionate: Fiercely loyal companion to family, gentle with kids.
Calm but confident: A watchful protector who rarely overreacts.
Don’t expect bursts of energy from this gentle giant — Neos are professional loungers who believe slow strolls and long naps are the secret to happiness. That said, regular exercise is still important to keep them healthy (and to avoid extra snoring fuel).
Grooming, however, is where the real work comes in — those iconic wrinkles and folds require regular cleaning to prevent irritation or infection, and yes, the drool is real. A towel nearby is not optional — it’s survival gear.
7. Leonberger
If there were an award for the world’s most huggable giant, the Leonberger would win it — paws down. This majestic, lion-like breed from Germany combines the power of a working dog with the heart of a teddy bear.
Imagine a dog that looks like it could guard a castle but would rather curl up beside you and listen to your problems — that’s the Leonberger in a nutshell. Often called the “gentle giant,” the Leonberger is as kind as they come.
Despite weighing as much as 170 pounds, they’re known for their calm, affectionate, and even empathic nature. These dogs don’t just love their families — they seem to understand them. Feeling down? Your Leonberger will quietly sit by your side until you feel better (and probably rest their massive paw on your knee for good measure).
Deeply loyal and loving: Bonds closely with every family member.
Smart and sensitive: Quick to learn, quick to comfort.
Hardworking spirit: Excels in guarding, carting, or outdoor adventures.
They thrive when given a sense of purpose, whether that’s guarding property, herding animals, or carrying their own gear on a hike. They’re surprisingly graceful for their size, with a steady, confident stride that turns heads wherever they go.
Leonberger is proof that size and sweetness can go paw in paw. Whether guarding your home, working beside you, or simply soaking up affection, this noble breed does it all with grace, devotion, and just enough drool to remind you that
Conclusion
For many dog lovers, the best giant dog breeds are often overlooked but exceptional—like Great Danes, Saint Bernards, Irish Wolfhounds, and Great Pyrenees dogs—are true gentle breeds with sweet temperaments and protective instincts. These colossal canines may have a massive build and commanding presence, but with early training and socialization, they grow into excellent family pets and friendly companions. Whether they’re guarding sheep, protecting livestock, or serving as rescue dogs, their protective nature and loving personality shine through.
Other dogs like the Bernese Mountain Dogs to English Mastiffs, these massive working dogs thrive with vigorous daily exercise, more space, and an active lifestyle—not in tight spaces. They have webbed feet, form strong bonds with other animals and small children, and stand tall—quite literally—as the tallest dog breeds. For potential owners interested in big dogs with great hearts, these great companions prove that sometimes, the big breeds are the ones that fit most comfortably in our human emotions.
