Huge Dog Breeds: 12 Giants Ranked by Size, Temperament & Cost
Looking for a huge dog? We rank 12 giant breeds by size, temperament, health risks, and lifetime cost to help you choose the right gentle giant.
There's nothing quite like sharing your home with a huge dog. These gentle giants command attention at the dog park, lean against your legs for cuddles, and somehow think they're lap dogs despite outweighing most adults. But bringing a giant breed into your life is a serious commitment — financially, physically, and emotionally.
After years of working with giant-breed owners and veterinary teams, I've put together this ranked guide to help you navigate the world of truly massive dogs. We're talking breeds that routinely tip the scales past 100 pounds (45 kg) and stand over 27 inches (69 cm) at the shoulder.
How We Selected and Ranked These Breeds
To qualify for this list, a breed must meet all three of the following criteria:
- Minimum typical adult weight: 100+ lb (45+ kg) for males, 80+ lb (36+ kg) for females
- Minimum typical adult height: 27+ inches (69+ cm) at the withers for males
- Recognized breed standard: Listed by the American Kennel Club (AKC) or a major international registry (FCI, UKC)
Ranking factors (weighted): Family compatibility (25%), health profile and lifespan (25%), exercise and space requirements (20%), grooming demands (15%), and lifetime ownership cost (15%).
The 12 Best Huge Dog Breeds, Ranked
We've organized these breeds into logical groups — from the most family-adaptable giants to the specialized working breeds that require experienced handlers.
Group 1: Family-Friendly Giants (Best for Most Households)
1. Newfoundland
Size class: Giant — Males 130–150 lb (59–68 kg), Females 100–120 lb (45–54 kg)
Key trait: Unmatched patience with children; natural water rescue instinct
Why it made the list: The Newfoundland earns the top spot because it combines massive size with one of the gentlest temperaments in the canine world. Originally bred to help Canadian fishermen haul nets and rescue people from icy waters, the Newfie's instinct to protect and assist is hardwired. They're the breed most likely to position themselves between a toddler and a staircase.
2. Bernese Mountain Dog
Size class: Large-Giant — Males 80–115 lb (36–52 kg), Females 70–95 lb (32–43 kg)
Key trait: Versatile family companion with striking tri-color coat
Why it made the list: The Berner's combination of size, beauty, and eager-to-please temperament makes it the most "complete package" huge dog for active families. Originally a Swiss farm dog, they pull carts, herd cattle, and guard property — but today they're just as happy hiking with the kids. Their main drawback is a tragically short lifespan of 6–8 years, which keeps them from the #1 spot.
3. Leonberger
Size class: Giant — Males 110–170 lb (50–77 kg), Females 90–140 lb (41–64 kg)
Key trait: Athletic giant that excels in water work and family life
Why it made the list: Often called the "gentle lion," the Leonberger was created in 1840s Germany by crossing Saint Bernards, Newfoundlands, and Great Pyrenees — literally engineering the ultimate huge family dog. They're more athletic than most giants, capable of agility and water rescue work, yet they're famously calm indoors. Less common in the US, which contributes to higher puppy prices.
4. Saint Bernard
Size class: Giant — Males 140–180 lb (64–82 kg), Females 120–140 lb (54–64 kg)
Key trait: Iconic alpine rescue heritage; exceptionally tolerant temperament
Why it made the list: The Saint Bernard is the archetype of the huge dog — massive, drooly, and endlessly patient. Bred by monks at the Great Saint Bernard Hospice in the Swiss Alps to locate and rescue lost travelers, their scenting ability and cold tolerance are legendary. They're lower-energy than Newfoundlands and Leonbergers, making them better for less active households, but their drool production is truly industrial-scale.
Group 2: Elegant Giants (Moderate Energy, Striking Appearance)
5. Great Dane
Size class: Super-Giant — Males 140–175 lb (64–79 kg), Females 110–140 lb (50–64 kg); Height up to 32+ inches (81+ cm)
Key trait: Tallest of all breeds; surprisingly low indoor energy
Why it made the list: The Great Dane holds the record for the tallest dog breed and is the definition of a huge dog. Despite their imposing stature, Danes are notorious couch potatoes indoors — earning the nickname "the world's biggest lap dog." Their short coat means minimal grooming, and their friendly nature makes them poor guard dogs but excellent family companions. The catch: a lifespan of only 7–10 years and significant risk of gastric dilatation-volvulus (bloat).
6. Irish Wolfhound
Size class: Super-Giant — Males 120+ lb (54+ kg), Females 105+ lb (48+ kg); Height 32–34+ inches (81–86+ cm)
Key trait: Tallest sighthound; dignified, quiet household presence
Why it made the list: Once bred to hunt wolves and guard Irish kings, the Irish Wolfhound is a huge dog with a poet's soul. They're quiet, dignified, and surprisingly gentle — more likely to stare soulfully out a window than bark at the doorbell. Their wiry coat requires moderate grooming. Like many super-giants, their lifespan is short at 6–8 years, and they need significant space to stretch out.
7. Scottish Deerhound
Size class: Giant — Males 85–110 lb (39–50 kg), Females 75–95 lb (34–43 kg); Height 30–32 inches (76–81 cm)
Key trait: Lean, athletic giant with aristocratic bearing
Why it made the list: The Deerhound is the greyhound of the giant world — all legs and elegance. Bred to course red deer across the Scottish Highlands, they retain strong prey drive but are calm and reserved at home. They're lighter-boned than other huge dogs on this list, which translates to fewer joint problems but requires careful exercise management during growth.
Group 3: Guardian Giants (Experienced Owners Preferred)
8. English Mastiff
Size class: Super-Giant — Males 160–230 lb (73–104 kg), Females 120–170 lb (54–77 kg)
Key trait: Heaviest breed on earth; calm, loyal guardian
Why it made the list: The English Mastiff is the heftiest huge dog you can own — males routinely exceed 200 lb (91 kg). Despite their intimidating mass, Mastiffs are famously docile and affectionate with their families. They're low-energy (a daily walk suffices), minimal barkers, and deeply bonded to their people. However, their sheer size creates logistical challenges: vehicle transport, veterinary handling, and the physical strength needed to manage them on a leash.
9. Tibetan Mastiff
Size class: Giant — Males 90–150 lb (41–68 kg), Females 70–120 lb (32–54 kg)
Key trait: Independent guardian with lion-like mane
Why it made the list: The Tibetan Mastiff is a huge dog with an ancient, independent streak. Originally guarding monasteries and livestock in the Himalayas, they're nocturnal by nature (expect nighttime patrolling and barking) and can be aloof with strangers. They require an owner who understands livestock guardian dog (LGD) psychology — firm, consistent positive reinforcement training without force. Their double coat is spectacular but sheds heavily once or twice annually.
10. Cane Corso
Size class: Large-Giant — Males 100–120 lb (45–54 kg), Females 88–110 lb (40–50 kg)
Key trait: Athletic Italian guardian with strong protective instincts
Why it made the list: The Cane Corso is the most athletic huge dog on this list — muscular, agile, and intensely loyal. Descended from Roman war dogs, they're natural guardians who need early, extensive socialization and ongoing positive reinforcement training. They're not recommended for first-time owners, but in experienced hands, a well-socialized Corso is a devoted, trainable companion. Note: some jurisdictions have breed-specific legislation affecting Corso ownership — check your local regulations.
Group 4: Working Giants (Specialized Roles)
11. Great Pyrenees
Size class: Giant — Males 100–160 lb (45–73 kg), Females 85–115 lb (39–52 kg)
Key trait: Livestock guardian with nocturnal patrol instincts
Why it made the list: The Great Pyrenees is a huge dog built for independent decision-making. For centuries, they've guarded flocks in the Pyrenees Mountains between France and Spain, working without human direction. This independence means they're intelligent but not biddable — don't expect competition-obedience-level responsiveness. They're gentle with family, wary of strangers, and will bark at night if they sense anything unusual.
12. Anatolian Shepherd
Size class: Giant — Males 110–150 lb (50–68 kg), Females 80–120 lb (36–54 kg)
Key trait: Fierce livestock guardian; highest independence level
Why it made the list: The Anatolian Shepherd is the most serious working huge dog on this list. Bred over 6,000 years in Turkey to protect flocks from wolves and bears, they're powerful, territorial, and deeply suspicious of strangers. They are not casual pets — they thrive when given a job (livestock guarding, large property patrol) and can be challenging in suburban settings. Included here for transparency: if you're researching huge dogs, you should know this breed exists and why it's not right for most homes.
Side-by-Side Comparison of All 12 Huge Dog Breeds
| Breed | Weight Range | Lifespan | Energy Level | Family Fit | Est. Annual Cost |
|---|---|---|---|---|---|
| Newfoundland | 100–150 lb (45–68 kg) | 9–10 yrs | Moderate | Excellent | $2,800–$4,200 |
| Bernese Mountain Dog | 70–115 lb (32–52 kg) | 6–8 yrs | Moderate-High | Excellent | $2,500–$3,800 |
| Leonberger | 90–170 lb (41–77 kg) | 8–9 yrs | Moderate-High | Excellent | $3,000–$4,500 |
| Saint Bernard | 120–180 lb (54–82 kg) | 8–10 yrs | Low-Moderate | Very Good | $2,600–$4,000 |
| Great Dane | 110–175 lb (50–79 kg) | 7–10 yrs | Low-Moderate | Very Good | $2,500–$4,200 |
| Irish Wolfhound | 105–150+ lb (48–68+ kg) | 6–8 yrs | Moderate | Very Good | $2,800–$4,500 |
| Scottish Deerhound | 75–110 lb (34–50 kg) | 8–11 yrs | Moderate | Good | $2,200–$3,500 |
| English Mastiff | 120–230 lb (54–104 kg) | 6–10 yrs | Low | Good | $3,000–$5,500 |
| Tibetan Mastiff | 70–150 lb (32–68 kg) | 10–12 yrs | Low-Moderate | Moderate | $2,500–$4,000 |
| Cane Corso | 88–120 lb (40–54 kg) | 9–12 yrs | Moderate-High | Good (exp. owner) | $2,200–$3,800 |
| Great Pyrenees | 85–160 lb (39–73 kg) | 10–12 yrs | Low-Moderate | Good | $2,000–$3,500 |
| Anatolian Shepherd | 80–150 lb (36–68 kg) | 11–13 yrs | Moderate | Poor (suburban) | $1,800–$3,200 |
The Real Cost of Owning a Huge Dog
Let's talk numbers, because the price tag on a huge dog extends far beyond the initial puppy purchase or adoption fee. Based on 2025–2026 veterinary pricing data and owner surveys, here's what you should budget:
Puppy purchase price: $1,500–$4,000 from a responsible breeder who conducts OFA health testing. Tibetan Mastiffs and Leonbergers often exceed $3,000. Adoption from breed-specific rescues typically runs $300–$800.
Food costs: A 150 lb (68 kg) dog eats roughly 6–8 cups of high-quality kibble daily, translating to $120–$200 per month. Brands like Purina Pro Plan Large Breed, Royal Canin Giant, or Hill's Science Diet Large Breed run $60–$90 per 35-lb bag.
Veterinary care: Giant breeds cost 30–50% more at the vet than medium breeds simply because drug dosages are weight-based. An annual wellness exam with bloodwork runs $350–$600. Heartworm prevention (e.g., Heartgard Plus for dogs 101+ lb) costs $140–$180/year. Emergency surgery — and giant breeds are prone to bloat emergencies — can cost $5,000–$12,000 without pet insurance.
Insurance premiums: Pet insurance for giant breeds averages $80–$150/month with companies like Trupanion, Healthy Paws, or Nationwide. Some insurers charge breed-specific surcharges for mastiff-type dogs.
Supplies: You'll need an XXL crate ($150–$300), a heavy-duty raised feeder ($60–$120), orthopedic beds designed for 150+ lb dogs ($120–$250 each — you'll want at least two), and harnesses rated for giant breeds like the Ruffwear Web Master ($90–$120).
Realistic first-year total: $5,500–$12,000 including puppy price, initial vet visits, vaccinations, spay/neuter (which costs more for giant dogs — typically $500–$900), supplies, and food. Annual ongoing costs: $3,000–$5,500.
Health Concerns Every Huge Dog Owner Must Know
Giant breeds face a distinct set of health challenges that you simply won't encounter with smaller dogs. Understanding these risks helps you choose a responsible breeder and prepare financially.
Critical: Gastric Dilatation-Volvulus (Bloat)
Bloat is the #1 emergency killer of huge dogs. According to the Merck Veterinary Manual, deep-chested giant breeds are at highest risk. The stomach fills with gas and can twist (volvulus), cutting off blood supply. This is a life-or-death emergency requiring surgery within hours.
Risk-reduction strategies: Feed 2–3 smaller meals daily (never one large meal), use a slow-feeder bowl, avoid vigorous exercise 1 hour before and 2 hours after eating, and discuss prophylactic gastropexy (stomach-tacking surgery) with your veterinarian — often performed during spay/neuter for $300–$600 additional cost.
Hip and elbow dysplasia: Prevalence varies by breed. The Orthopedic Foundation for Animals (OFA) reports dysplasia rates of 25–40% in Saint Bernards, 20–25% in Newfoundlands, and 15–20% in Great Danes. Always ask breeders for OFA certification on both parents.
Dilated cardiomyopathy (DCM): Great Danes, Irish Wolfhounds, and Newfoundlands have elevated DCM risk. Annual cardiac screening via echocardiogram ($250–$400) is recommended for breeds over age 4.
Osteosarcoma (bone cancer): Disproportionately affects giant breeds, particularly Irish Wolfhounds, Great Danes, and Rottweilers. Often presents as lameness in a front limb. Treatment (amputation + chemotherapy) costs $8,000–$15,000 and carries a median survival time of 10–12 months.
Veterinary disclaimer: This article provides educational information only. Always consult your veterinarian for breed-specific health screening recommendations, diagnostic testing, and treatment plans for your individual dog.
How to Choose the Right Huge Dog for Your Situation
The decision framework below helps you narrow from 12 breeds to the best fit for your specific circumstances. Follow the flowchart to identify your top candidates.
Huge Dog Decision Flowchart
- Do you have children under 12?
→ Yes: Prioritize Newfoundland, Bernese Mountain Dog, or Leonberger (Group 1 breeds). Skip guardian breeds.
→ No: Continue to step 2. - Is this your first dog, or do you have fewer than 3 years of dog ownership experience?
→ Yes: Stick with Group 1 or Group 2 breeds. Avoid Tibetan Mastiff, Cane Corso, and Anatolian Shepherd entirely.
→ No: All groups are open. Continue to step 3. - Do you have a securely fenced yard of at least 1/4 acre?
→ Yes: All breeds remain viable. Continue to step 4.
→ No: Eliminate Great Pyrenees, Anatolian Shepherd, and Tibetan Mastiff (they patrol and bark at boundaries). Consider Great Dane or Saint Bernard (lower energy, apartment-adaptable if exercised). - Can you budget $4,000+ annually for ongoing care?
→ Yes: Continue to step 5.
→ No: Consider a large (not giant) breed instead — breeds like Labrador Retrievers or Golden Retrievers offer similar temperaments at 60–70% of the cost. - What matters more: low grooming or high athleticism?
→ Low grooming: Great Dane, English Mastiff, Cane Corso (short coats).
→ High athleticism: Leonberger, Bernese Mountain Dog, Cane Corso (can hike, swim, do agility).
→ Both: Leonberger is the best dual-purpose pick.
Top 3 Breed Matchups for Common Scenarios
"I want a huge dog that's great with kids and doesn't need intense exercise"
→ Newfoundland is your answer. Moderate daily walks plus swimming opportunities keep them happy. Their patience with children is legendary, and they're naturally protective without aggression.
"I want a huge dog that can hike with me and still be a cuddle bug at home"
→ Leonberger or Bernese Mountain Dog. Both thrive on outdoor activity and settle beautifully indoors. Choose the Leonberger if you want a longer lifespan; choose the Berner if you prefer a more widely available breed with established rescue networks.
"I want a huge dog for property guardianship on acreage"
→ Great Pyrenees (for families who also want a house companion) or Anatolian Shepherd (for serious working situations only). The Pyrenean will patrol and alert but remain friendly with invited guests. The Anatolian will be more serious and less tolerant of strangers.
Honorable Mentions and Breeds to Consider Carefully
Honorable Mentions (Didn't Quite Make the Cut)
Dogue de Bordeaux (French Mastiff): Weighing 99–150 lb (45–68 kg), they're massive and deeply loyal. However, their brachycephalic (short-muzzled) face creates breathing challenges, and their lifespan of 5–8 years is among the shortest of any breed. They also tend toward same-sex aggression.
Neapolitan Mastiff: At 110–150 lb (50–68 kg) with dramatic loose skin and wrinkles, they're unmistakable. But their health profile is challenging — cherry eye, hip dysplasia, skin fold infections, and bloat risk are all common. They require an experienced owner committed to positive reinforcement socialization from puppyhood.
Boerboel: This South African mastiff weighs 150–200 lb (68–91 kg) and is a formidable guardian. Increasingly popular, but their power and protective instincts demand expert-level training. Not suitable for homes with frequent visitors or multi-dog households without significant management.
Breeds to Avoid if You're Looking for a Family Huge Dog
Anatolian Shepherd and Kangal are livestock guardian dogs, not family companions. They excel at their intended work but are typically miserable in suburban environments. Their nighttime barking, territorial instincts, and wariness of strangers create significant neighbor and liability issues in residential areas.
Tosa Inu: At 100–200 lb (45–91 kg), the Tosa is a Japanese breed originally developed for dog fighting. While individual dogs can be gentle, many jurisdictions ban or restrict the breed, and responsible breeders are extremely rare outside Japan. The legal and ethical complexities make this a poor choice.
Frequently Asked Questions About Huge Dogs
Are huge dogs good with children?
Most giant breeds — especially Newfoundlands, Bernese Mountain Dogs, and Saint Bernards — are exceptionally patient with children. However, their sheer size creates accidental injury risk. A 150 lb dog can knock over a toddler simply by turning around. Always supervise interactions, teach children to respect the dog's space, and provide the dog with a child-free retreat area.
How much exercise does a huge dog need daily?
Most giant breeds need 45–90 minutes of daily exercise, split into multiple sessions. This typically means two 20–30 minute walks plus yard time or swimming. Avoid forced running or high-impact exercise in dogs under 18–24 months, as their growth plates haven't closed and joint damage can result. Swimming is ideal for giants — it provides excellent cardiovascular exercise without joint stress.
Do huge dogs eat significantly more than large breeds?
Yes. A 150 lb (68 kg) Mastiff eats roughly 2–3 times what a 60 lb (27 kg) Labrador consumes. Expect to spend $120–$200/month on quality kibble for a giant breed versus $50–$80 for a large breed. Giant-breed-specific formulas (like Purina Pro Plan Large Breed or Royal Canin Giant) are formulated with controlled calcium and phosphorus ratios to support healthy bone growth.
What's the best age to bring home a huge dog puppy?
Most responsible breeders release giant-breed puppies at 8–10 weeks. Some breeders of slower-maturing breeds (like Mastiffs) prefer to keep puppies until 10–12 weeks for additional socialization. Giant breeds grow slowly — they don't reach full adult size until 18–36 months — so expect an extended puppy phase.
Should I get pet insurance for a huge dog?
Absolutely. Giant breeds have higher rates of expensive conditions — bloat surgery ($5,000–$12,000), hip replacement ($5,000–$8,000 per hip), cardiac treatment ($200–$500/month for medications), and cancer treatment ($8,000–$15,000). Enroll while your dog is young and healthy; pre-existing conditions are universally excluded. Companies like Trupanion and Healthy Paws offer plans with no payout caps, which matters when a single emergency can exceed $10,000.
Can huge dogs live in apartments?
Some can — Great Danes and English Mastiffs are surprisingly apartment-adaptable due to their low indoor energy. However, you'll need a ground-floor unit or elevator access (stairs are hard on giant joints), nearby green space for walks, and a landlord who permits breeds over 100 lb. Many apartment complexes have weight restrictions of 50–75 lb, which eliminates most breeds on this list.
Choosing a huge dog is one of the most rewarding — and demanding — decisions a dog owner can make. These breeds offer unparalleled loyalty, gentle companionship, and the kind of presence that fills a home in every sense. But they also demand realistic budgeting, proactive health management, and a commitment to positive reinforcement training from puppyhood through adulthood. Take your time, meet breeders, talk to breed-specific rescue organizations, and make sure your lifestyle truly fits the giant you're considering. Your future gentle giant will thank you for it.
Robin Maitland
All our authors care for dogs every day — read more of their work on the authors page.
