When it comes to canines, size can be awe-inspiring, and the tallest dog breeds prove just that. While many dogs are admired for their agility or compact charm, some stand out simply because they tower over the rest. But in the world of dog measurements, height is always taken at the withers, the highest point of the shoulders, not the head. That means when we talk about “tall,” we’re talking true, ground-to-shoulder giants.
These towering breeds aren’t just impressive in stature; they’re also rich in history, known for their roles as guardians, hunters, and loyal companions. Often referred to as gentle giants, these dogs combine striking physical presence with calm, loving temperaments that make them unforgettable additions to any home.
Exploring the tallest dog breed in the world (and the runners-up) reveals how form and function meet through selective breeding. Whether bred for speed, strength, or sheer presence, these majestic dogs were born to stand tall, both literally and figuratively.
Tallest Dog Breed in the World
1. Irish Wolfhound
The Irish Wolfhound holds the title of the largest dog breed in the world. WebMD reports that Irish Wolfhounds are gentle, composed, and loyal dogs. With roots stretching back to ancient Ireland, this majestic breed was historically employed to hunt wolves, elk, and other large game.
Revered in Irish lore and legislation as early as the 5th century, these sighthounds embody both power and grace. Males typically stand 32 to 35 inches tall and weigh between 105–140 pounds, giving them a commanding presence.
Despite their towering stature, they’re known for being gentle, loyal, and quiet companions, often called “gentle giants.” These dogs thrive in calm environments with ample space to stretch their long legs and satisfy their bursts of energy.
Appearance
The Irish Wolfhound’s build is a mix of rugged strength and elegance. It features a long-legged, deep-chested body, a slightly curved, bushy tail, and a narrow head with small, dropped ears.
Its rough, wiry coat can come in gray, black, red, fawn, brindle, or white. The hair is notably longer around the muzzle and eyes, creating a signature scruffy look. Their large, dark eyes and noble bearing only add to their regal demeanor.
Fun Fact:
In the early 20th century, the breed was saved from extinction thanks to the dedicated efforts of Major H.D. Richardson and Captain George Augustus Graham.
2. Leonberger
Bred in 19th-century Germany, the Leonberger, fondly called the “Leo”, was created to resemble a lion, combining size, strength, and a noble presence. Revered by both farmers and aristocrats, this gentle giant was originally developed for companionship and work.
Males stand tall at 28.5 to 31.5 inches and weigh between 110 and 170 pounds, while females typically measure 25.5 to 29.5 inches and weigh slightly less. Leonbergers are prized not only for their impressive build but also for their calm demeanor and intelligence.
Their eagerness to please makes them excellent therapy and working dogs, especially in roles like search and rescue. Purina states that the Leonberger is calm and playful, with a steady temperament and a strong desire to please.
Appearance
Leonbergers boast a luxurious double coat that is medium to long, water-resistant, and comes in shades ranging from lion-yellow to red-brown. A black mask gives them a noble expression, while a male Leo’s mane develops between two to three years of age, adding to their lion-like aura.
They have bushy tails, drooping ears, and expressive dark brown eyes. Their athletic, elastic gait and balanced proportions make them one of the most majestic giant breeds.
Fun Fact: There’s a dedicated “Leonberger University” focused on training this unique breed for specialized roles like therapy and search missions.
3. Neapolitan Mastiff
The Neapolitan Mastiff, or “Mastino Napoletano,” is a descendant of ancient Roman war dogs, bred for strength, protection, and sheer intimidation. Originating from Italy, this breed stands an imposing 26 to 31 inches tall and can weigh anywhere from 120 to 230 pounds.
While their gladiator ancestry suggests ferocity, today’s Neapolitan Mastiffs are calm and affectionate, preferring relaxed strolls over battlefield charges. They’re prized not just for their size but also for their guarding instincts and unique appearance. PetMD says that Neapolitan Mastiffs have cat-like tendencies, often content to lounge and nap in the sun for much of the day.
Appearance
The Neapolitan Mastiff’s most iconic features are its saggy, wrinkled skin and massive, square-shaped head. Their loose skin forms heavy folds, especially around the face, giving them a wise, almost ancient expression.
Their broad chest, thick limbs, and drooping jowls enhance their formidable silhouette. Coats are short and dense, typically found in shades like gray, black, mahogany, or tawny, often with brindle patterns. Despite their lumbering build, their movements are fluid and powerful.
Fun Fact: These calm dogs are believed to have fought alongside Roman legions and guarded estates centuries ago, a legacy they now exchange for cozy naps and loyal companionship.
4. Newfoundland
Nicknamed the “gentle giant” of the dog world, the Newfoundland, also known as the Newf or Newfie, is a colossal yet kind-hearted breed originating from the rugged coasts of Newfoundland, Canada.
Standing up to 28 inches tall and weighing anywhere between 100 and 150 pounds, these dogs were historically bred by fishermen for tasks requiring strength and stamina, such as hauling nets or performing heroic water rescues. Their immense size and swimming prowess are supported by large webbed feet, powerful lungs, and a thick, water-resistant coat.
Appearance
Newfoundlands have an unmistakably noble look, defined by a broad head, soulful eyes, and a heavy-boned frame. Their thick, flat double coat comes in several colors, including black, brown, gray, and the distinctive black-and-white pattern known as Landseer.
The outer coat is coarse to the touch, offering protection against harsh weather, while the undercoat provides insulation. Their tail is strong and broad, and their webbed paws further enhance their natural swimming ability.
Fact: A Newfoundland named Seaman famously accompanied the Lewis and Clark Expedition, serving as a loyal guard dog and valued companion throughout the journey.
5. Saint Bernard
One of the most iconic gentle giants in the canine world, the Saint Bernard, also affectionately known as the “Saint”, is a towering, majestic dog with deep roots in Alpine rescue history. Originally developed by monks at the Great St.
Bernard Hospice in the Swiss Alps, this breed descended from Roman-era Molossus war dogs. Renowned for their loyalty and protective instincts, Saints became famous for saving countless travelers trapped in snowbound passes.
Their historic legacy includes Barry, the legendary hospice dog credited with rescuing over 40 people in the early 1800s. Standing tall at 26 to 30 inches and weighing between 120 and 180 pounds, Saint Bernards are among the tallest dog breeds globally.
Appearance
Saint Bernards possess a muscular, heavyset frame, broad head, and expressive, drooping eyes. Their coat can be short and dense or medium-long, always in red-brown and white or brindle and white hues. Their long tail and powerful build add to their majestic presence.
Fact: Despite popular legend, Saint Bernards never carried barrels of brandy around their necks—this myth originated from a 19th-century painting by Edwin Landseer.
6. Dogue de Bordeaux
Originating from France, the Dogue de Bordeaux, also known as the French Mastiff, is a commanding breed with deep historical roots in guarding estates, pulling carts, and hunting large game. Recognized for its extraordinary strength and loyalty, this breed stands between 23 and 27 inches tall and weighs anywhere from 99 to 150 pounds.
Despite its relatively average height compared to some taller breeds, its massive frame, unmatched head size, and dignified demeanor certainly make it a giant in presence. Dogue de Bordeaux is a noble yet powerful companion that thrives in experienced hands.
Appearance
These giant dogs boast a short, soft coat in rich hues of red, fawn, mahogany, or isabella, often accented with black or brown masks and occasional white patches. Its face is famously wrinkled, giving it a deeply expressive look.
However, these skin folds, along with the breed’s undershot jaw and tendency toward joint issues, mean health screenings and conscientious breeding are vital.
Fact: The Dogue de Bordeaux holds the record for having the proportionately largest head of any dog breed.
7. Scottish Deerhound
Originally bred to stalk red deer across the rugged Scottish Highlands, the Scottish Deerhound is one of the most towering and noble breeds in the canine world. Known as the “royal dog of Scotland,” this sighthound has a history dating back to the 16th century, when it was reserved for nobility.
Males typically stand between 30 to 32 inches tall and weigh up to 110 pounds, placing them firmly among the tallest dog breeds. Despite their imposing size, Deerhounds are remarkably gentle, calm, and loyal, making them devoted companions for those with the space to accommodate their needs.
Their sprinting speed, which can reach up to 30 mph, is a testament to their heritage as hunting hounds.
Appearance
Built much like a Greyhound but with a more substantial frame, these hunting dogs boast a wiry, harsh coat in shades like dark gray or blue-gray.
They feature a long, tapered head, expressive dark eyes, a strong neck, and a feathery, curved tail. Their medium-length coat and lean silhouette give them a regal, windswept look befitting their aristocratic past.
Fun fact: This giant dog breed was so esteemed in its homeland that only nobles were once permitted to own one.
Conclusion
When it comes to towering canines, a few breeds quite literally rise above the rest. From noble hunters like the Scottish Deerhound, once bred to hunt red deer, to powerful working breeds such as the Great Dane and Great Pyrenees, these majestic dogs are not just tall but also steeped in purpose and history. The American Kennel Club recognizes many of these giants not only for their size but also for their grace, loyalty, and versatility across various roles.
Whether navigating mountainous terrain or watching over fields, tall dogs like the Bernese Mountain Dog and farm dogs such as the Black Russian Terrier bring strength and companionship in equal measure. While their stature might be imposing, their personalities are often gentle, loyal, and affectionate. For those who have the space and dedication, these gentle giants make unforgettable additions to any home, earning their place not just as the tallest, but among the most heartwarming of breeds.
