Large Dog Breeds: Care & Temperament Guide

Searches for large dog breeds in Britain keep climbing as more pet parents swap smaller dogs for the so-called gentle giants. Kennel Club figures show that four of the UK’s ten most-registered breeds now top 25 kg, led by the Labrador Retriever. Big dogs were originally bred to pull sleds, guard livestock or accompany hunters, so they still enjoy a long walk across the great outdoors. Yet many—think Great Danes or Bernese Mountain Dogs—are calm in the house once their exercise needs are met. This guide explains size, care and temperament so UK owners can tell whether a giant dog breed is the perfect companion or if a more modest buddy makes better sense for their space and budget.

What Counts as a Large Dog Breed?

A large dog breed is usually over 25kg in adulthood. Some are tall and lean, such as Irish Wolfhounds and Great Danes. Others are massive, broad and immensely strong, such as Mastiffs, Saint Bernards and Newfoundlands. A rough guide:

Size Type	Typical Weight	Examples
Large dogs	25-40kg	Labrador, Golden Retriever, German Shepherd, Doberman
Very large dogs	40-55kg	Rottweiler, Bernese Mountain Dog, Akita, Giant Schnauzer
Giant dog breeds	55kg+	Great Dane, Newfoundland, Saint Bernard, Mastiff, Irish Wolfhound

The tallest dog breed by average height is often considered the Irish Wolfhound, though Great Danes can also stand extremely tall at the shoulders. The heaviest giant breeds include the English Mastiff, Saint Bernard and Newfoundland.

Large vs Giant Dog Breeds

All giant breeds are large dogs, but not all large dogs are giant dogs. This matters because giant dog breeds often have different care needs from smaller breeds.

Giant dog owners should plan for:

• Larger food bills

• Stronger leads and harnesses

• Bigger car space

• Large dog beds

• Higher pet insurance costs

• More pressure on joints

• More drool in some breeds

• Slower puppy growth management

• Careful training before the dog becomes too strong to handle

A gentle giant can be calm and easy going indoors, but that does not mean they are easy to own. A boisterous 60kg pup still needs manners.

Best Large Dog Breeds by Lifestyle

Lifestyle / Need	Best Large Dog Breeds	Why They Fit
Best for families	Labrador, Golden Retriever, Newfoundland, Bernese Mountain Dog	Gentle, affectionate and usually good with children when trained
Best calm large dogs	Great Dane, Saint Bernard, Leonberger, Newfoundland	Often relaxed indoors despite their size
Best guard dogs	German Shepherd, Rottweiler, Doberman, Bullmastiff, Cane Corso	Protective, loyal and powerful dogs for experienced owners
Best for active owners	German Shepherd, Giant Schnauzer, Rhodesian Ridgeback, Akita	Need more exercise, structure and mental stimulation
Best for cold weather	Bernese Mountain Dog, Saint Bernard, Newfoundland, Great Pyrenees	Thick double coat or weather-resistant coat suited to the great outdoors
Best for experienced owners	Anatolian Shepherd, Tibetan Mastiff, Neapolitan Mastiff, Dogue de Bordeaux	Strong, territorial or reserved breeds needing early socialisation
Best with other pets	Labrador, Golden Retriever, Newfoundland	Often sociable, but introductions still need care
Best for space-rich homes	Irish Wolfhound, Great Dane, Mastiff, Saint Bernard	Tall or massive bodies need room to move and relax

Top Large Dog Breeds in the UK

1. Labrador Retriever

Average height: 55-62cm

Weight: 25-36kg

Lifespan: 10-12 years

Temperament: Friendly, eager, loyal

Best for: Families, active homes, first-time owners with time

The Labrador is one of the most popular breeds in the UK. Originally bred to retrieve for fishermen and hunters, Labradors are bright, affectionate and usually good with children and other dogs. They require plenty of exercise, training and food control, as they tend to gain weight easily.

2. Golden Retriever

Average height: 51-61cm

Weight: 25-34kg

Lifespan: 10-12 years

Temperament: Gentle, patient, loving

Best for: Families, therapy work, active homes

Golden Retrievers are classic family dogs with a gentle nature and strong bond with people. They shed and need regular grooming, especially around the feathering and thick coat. They are wonderful pets when given daily exercise, training and companionship.

3. Bernese Mountain Dog

Average height: 58-70cm

Weight: 36-50kg

Lifespan: 7-10 years

Temperament: Gentle, affectionate, calm

Best for: Families with space, cooler climates

The Bernese Mountain Dog originates from Switzerland and was originally bred as a working mountain dog in the Swiss Alps. With a thick double coat, sturdy build and sweet temperament, this gentle giant can be a great family pet. Watch-outs include hip dysplasia, elbow issues, shedding and shorter average lifespan.

4. Great Dane

Average height: 71-81cm+

Weight: 45-70kg

Lifespan: 7-10 years

Temperament: Gentle, patient, affectionate

Best for: Spacious homes, calm owners

Great Danes are among the tallest dog breeds in the world. Despite their imposing size, many Great Danes are easy going and loving at home. They need careful puppy exercise, joint protection and training early, before their long legs and massive bodies become hard to manage.

5. Newfoundland

Average height: 63-74cm

Weight: 45-70kg

Lifespan: 8-10 years

Temperament: Patient, devoted, gentle

Best for: Families, water-loving homes, cooler weather

Newfoundlands were originally bred to help fishermen and are famous for webbed feet, strength and water work. They are gentle with children but drool, shed and require regular grooming. Their thick coat and size mean they are not well suited to hot weather.

6. Saint Bernard

Average height: 65-90cm

Weight: 55-80kg+

Lifespan: 8-10 years

Temperament: Calm, affectionate, steady

Best for: Patient families with plenty of space

The Saint Bernard is linked with monks and mountain rescue in the Swiss Alps. These giant dogs can be gentle and loving, but they drool, shed and need room. Their large bodies mean stairs, slippery floors and overfeeding need careful management.

7. Irish Wolfhound

Average height: 71-86cm+

Weight: 40-70kg

Lifespan: 6-10 years

Temperament: Gentle, dignified, calm

Best for: Experienced owners with space

Irish Wolfhounds were historically used for hunting wolves and deer. Today, they are usually gentle, quiet and affectionate with family. Their size, short lifespan and health risks mean owners need to be prepared before adopting one.

8. German Shepherd

Average height: 55-65cm

Weight: 22-40kg

Lifespan: 9-13 years

Temperament: Intelligent, loyal, protective

Best for: Active owners, training-focused homes

German Shepherds are working dogs with strong intelligence and drive. They can be wonderful family pets when properly trained and socialised, but they need a job, structure and daily exercise. They may be suspicious of strangers if poorly socialised.

9. Rottweiler

Average height: 56-69cm

Weight: 35-60kg

Lifespan: 8-10 years

Temperament: Loyal, calm, protective

Best for: Experienced owners, structured homes

Rottweilers are powerful dogs with a strong sense of loyalty. They need early training, supervision around small children and calm handling. A well-socialised Rottweiler can be affectionate and steady, but this is not a breed to raise casually.

10. Doberman

Average height: 63-72cm

Weight: 30-45kg

Lifespan: 10-13 years

Temperament: Alert, loyal, energetic

Best for: Active owners, training, protection work

The Doberman is sleek, agile and intelligent. Dobermans need daily exercise, mental stimulation and a close bond with their family. They are protective by nature, so early socialisation with people, other dogs and pets is essential.

11. Bullmastiff

Average height: 61-69cm

Weight: 41-59kg

Lifespan: 8-10 years

Temperament: Calm, strong, devoted

Best for: Experienced family homes

Bullmastiffs were originally bred to guard estates. They are strong, quiet and protective, often affectionate with their family but reserved with strangers. They need training, space and careful weight management.

12. Dogue de Bordeaux / French Mastiff

Average height: 58-68cm

Weight: 45-65kg+

Lifespan: 5-8 years

Temperament: Loyal, calm, protective

Best for: Experienced mastiff owners

The Dogue de Bordeaux, also known as the French Mastiff, is famous for its fawn coat, wrinkly skin and droopy face. The breed is immensely strong and loving with family, but may be territorial. Health problems, drool and short lifespan should be taken seriously.

13. Neapolitan Mastiff

 

Average height: 60-75cm

Weight: 50-70kg+

Lifespan: 7-9 years

Temperament: Protective, calm, reserved

Best for: Experienced owners only

The Neapolitan Mastiff is one of the most imposing giant breeds, with loose skin, heavy bone and a serious guarding background. These Italian Mastiffs need calm owners, space and early socialisation. They are not ideal for busy town homes or first-time owners.

14. Cane Corso

Average height: 58-70cm

Weight: 40-50kg+

Lifespan: 9-12 years

Temperament: Confident, loyal, protective

Best for: Experienced owners, working homes

The Cane Corso is another Italian Mastiff type, built for strength, protection and versatility. Cane Corsos can bond deeply with family, but they need firm, fair training from puppyhood. They are not suitable for people who want a casual big dog with little structure.

15. Anatolian Shepherd

Average height: 71-81cm

Weight: 40-65kg

Lifespan: 11-13 years

Temperament: Independent, protective, aloof

Best for: Rural homes, livestock guardian work

The Anatolian Shepherd was originally bred as a livestock guardian. This breed is powerful, independent and naturally territorial. It may be suspicious of strangers and needs an experienced owner who understands guardian breeds.

16. Tibetan Mastiff

Average height: 61-76cm

Weight: 35-70kg+

Lifespan: 10-12 years

Temperament: Independent, protective, reserved

Best for: Experienced rural owners

Tibetan Mastiffs are majestic dogs with a thick coat and strong guarding instinct. They can be aloof, stubborn and territorial. Their coat requires regular grooming, and their temperament needs careful management.

17. Great Pyrenees / Pyrenean Mountain Dog

Average height: 65-82cm

Weight: 36-55kg+

Lifespan: 10-12 years

Temperament: Gentle, protective, calm

Best for: Rural homes, cooler climates

Known in the UK as the Pyrenean Mountain Dog, the Great Pyrenees was bred to guard livestock. This gentle giant has a thick double coat and calm manner, but may bark and patrol. Regular grooming is needed to manage shedding.

18. Akita

Average height: 58-71cm

Weight: 32-50kg

Lifespan: 10-13 years

Temperament: Loyal, reserved, strong-willed

Best for: Experienced owners

Akitas are strong, devoted and often aloof with strangers. They can be deeply loving with family but may not always mix easily with other dogs. Early socialisation and safe handling are crucial.

19. Giant Schnauzer

Average height: 60-70cm

Weight: 25-48kg

Lifespan: 10-12 years

Temperament: Intelligent, bold, energetic

Best for: Active owners, training homes

The Giant Schnauzer is a working breed from Germany with strength, intelligence and a protective character. They need more exercise than many calm giant dogs and require grooming for their rough coat.

20. Leonberger

Average height: 65-80cm

Weight: 40-75kg

Lifespan: 8-10 years

Temperament: Gentle, affectionate, steady

Best for: Families with space

The Leonberger is a massive, loving dog with a thick coat and gentle nature. They can be great family companions, but their size, shedding and grooming needs are substantial.

Size & Space in Typical UK Homes

Britons live smaller than our canine cousins might like: the median garden is just 188 m². Before bringing home a giant breed, measure hallways, doorframes and boot space. A Great Dane needs an XXL bed (at least 137 cm long); a Bernese with a long haired, thick double coat needs shady spots during warm spells. Flat-dwellers can keep big dogs if lifts are roomy and a long walk is routine. Rural owners should check fencing—Irish Wolfhounds can clear 1.5 m with ease. Landlords often ask for higher pet deposits, so show them proof of insurance and early training certificates to reassure them that your family dog won’t out-muscle the furniture.

Common Health Issues in Large Dogs

Large dog breeds—including giant dog breeds such as Great Danes, Saint Bernards, and the mighty Irish Wolfhounds—have bodies that grow fast and carry immensely strong frames. That size brings unique challenges. Below are the problems you’ll meet most often, how to spot them, and what you can do to keep your gentle giant feeling their best.

1. Hip and elbow dysplasia — the classic “big‑dog ache”

• What it is: A loose fit in the hip or elbow socket that wears the joint down.

• Who’s prone: Bernese Mountain Dogs, Newfoundlands, Rottweilers, Labradors, and other big dog breeds with a sturdy build.

• Signs to watch: Bunny‑hopping, slow to rise, reluctance on stairs, or a dog that would rather relax than go for its usual long walk.

• Prevention & care: Keep pups lean while they grow, avoid heavy loads on young joints, use ramps instead of jumps, and ask your vet about early screening.

2. Gastric Dilatation‑Volvulus (GDV) — “bloat”

Nicknamed “the mother of all emergencies,” GDV can twist a dog’s stomach in minutes.

• Split meals (no single giant feed).

• Use slow‑feed bowls—ideal for giant breeds that inhale food.

• Rest 30 minutes after exercise before eating.

• Know the red flags: distended belly, drooling, retching with no vomit.

3. Skin & coat problems

• Double‑coated mountain or livestock guardian dogs such as an Anatolian Shepherd or Great Pyrenees need regular grooming to avoid mats that trap moisture and trigger hot spots.

• Breeds with wrinkly skin—think Neapolitan Mastiff or French Mastiff (Dogue de Bordeaux)—collect fungus in skin folds; wipe daily.

• A thick double coat does shed; brush outdoors to keep house fur‑free.

4. Heart conditions

Great Danes, Dobermans, and Boxers can develop dilated cardiomyopathy.

• Annual heart checks after age five extend lifespan.

• Moderate, not marathon, daily exercise; avoid overheating in summer.

• Alert your vet if you notice coughing at rest or sudden weakness.

5. Obesity & weight management

Even the most laid‑back gentle nature can hide a huge appetite.

• Use your dog’s average height and ideal weight (ask the Kennel Club chart) to portion food.

• Replace one treat session with a quick session of training games—keeps minds sharp and bodies trim.

• Remember: Compared with smaller breeds, a giant dog only needs to gain a few kilos to overload joints.

Daily Care Essentials for Gentle Giants

Exercise & Weight

The PDSA advises most large breeds need 1½–2 hours of exercise every day, split between steady trots and joint-friendly off-lead play. Lack of movement fuels obesity: an RVC Vet Compass study found 1 in 14 UK dogs is overweight each year, with Labrador Retrievers most at risk.

Feeding & Health

Feed life-stage formulas aimed at giant dogs to control rapid growth and lower hip-dysplasia odds. Watch salt in treats—big hearts are more prone to dilated cardiomyopathy. Annual screens for heart disease and elbow scores are wise for breeds like the Great Pyrenees and Newfoundlands.

Legal Basics

All UK pups must be microchipped by eight weeks, or owners face a £500 fine. Update the database when you move; big dogs wandering without ID can be mistaken for strays.

Grooming

Thick double-coat breeds (e.g., Saint Bernard) need weekly rake-outs to avoid mats, while smooth-coated Italian Mastiffs benefit from a quick mitt wipe. Budget for professional groomers if you dislike hair storms indoors.

Mental Work

Large, smart breeds such as the Black Russian Terrier crave “jobs”—nose-work games or backpack hikes keep boredom (and barking) at bay. Provide puzzle toys that fit their large stature rather than toys meant for smaller counterparts.

Temperament & Training

Big dogs come with big personalities. Many large dog breeds—from the laid-back great danes to the strong-willed cane corso—were originally bred as working dogs or guard dogs, so they still carry a strong sense of duty. Early training is non-negotiable: start reward-based classes before 16 weeks so these giant breeds learn polite greetings while they’re still (relatively) small. The RSPCA’s recall booklet shows step-by-step positive methods you can copy at home. Short brain games—scent trails, puzzle bowls—tire out a black russian terrier as surely as a long walk. Socialise with smaller dogs in safe settings to prevent over-boisterous play. With clear rules and praise, even a neapolitan mastiff with that famous droopy face can become a calm family dog and a credit to the neighbourhood.

Legal & Money Matters in the UK

Microchipping & ID

UK law says every pup must be microchipped by eight weeks—or owners face a £500 fine. Keep your contact details current so a found bernese mountain dog makes it home fast.

Dangerous Dogs Act

Four “type” breeds are banned under the 1991 Act; others, like italian mastiffs and great pyrenees, are legal but must be under control in public legislation. Good leash manners help protect our “gentle giants” from unfair stigma.

Real-World Costs

Vet fees scale with size: cruciate-ligament surgery on a saint bernard can top £3,000. Money Helper lists average premiums for large breeds at £35–£80 a month, double what smaller counterparts pay. Budget extras for hip-dysplasia X-rays, heart-disease scans and XXL crates—plus a car big enough to fit your livestock guardian comfortably.

Sustainable Ownership

Before buying, check rescue portals: Dogs Trust often lists giant dog breed adults needing “enough space” and a committed home. Adopting reduces demand from less-ethical breeders. Eco-tips for pet parents:

• Pick durable toys and wash-down sofa covers instead of single-use throws.

• Feed in bulk—those thick double-coat mountain dogs go through kibble fast, but bigger bags cut plastic waste.

• Walk locally; a daily hike across the great outdoors meets exercise needs without car trips, even in cold weather loved by a swiss alps-bred bernese.
  Planning for a 10-year life expectancy (6–8 for irish wolfhounds) keeps big-paw prints lighter on both planet and wallet.

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Choosing Your Perfect Large Breed

Use the “3 S” test: Space, Schedule, Spending.

1. Space: Can your hallway turn a french mastiff (aka dogue de bordeaux) without scrapes? Garden smaller than 140 m²? Maybe a medium-large boxer suits better.

2. Schedule: Working dogs such as great pyrenees need jobs; couch-friendly newfoundlands still need swimming outlets.

3. Spending: Factor insurance, grooming and extra food. A lion-like mane on a tibetan mastiff means pro grooms; a sleek roman empire descendant like the neapolitan mastiff just needs wipes.

Match these to temperament—do you crave a watchdog, a jogging buddy or a nanny dog for kids? Cross-check both Kennel Club data and American Kennel Club profiles for wider insight. 

FAQs

What is the top 10 largest dog?

Common UK chart (shoulder height): Irish Wolfhound, Great Dane, Saint Bernard, English Mastiff, Leonberger, Newfoundland, French Mastiff, Great Pyrenees, Cane Corso, Bernese Mountain Dog.

What is the friendliest big dog?

Many trainers still vote the ever-waggy Golden Retriever, prized as one of the best family pets for gentle manners.

What is the best large breed dog to own?

“Best” equals fit: rural hikers love german shepherds; city dwellers wanting calm may choose great danes.

What is the largest dog breed in the UK?

The Irish Wolfhound holds the record, averaging 81–86 cm tall at the shoulder — a true gentle giant.

Conclusion

Owning big dogs is hugely rewarding: they cuddle like teddy bears yet stride beside you on misty hill walks. Master early training, respect UK laws, and budget for their large stature health care. Do that, and you’ll share life with a loyal shadow who turns heads wherever you roam.