This list collects every breed in the encyclopedia whose size class is Large or Giant, roughly fifty pounds and up. It is ranked by popularity, not by any rating, and it says nothing about temperament on its own: the Labrador Retriever and the Cane Corso sit near each other at the top and could hardly be more different dogs.
Big dogs are what most people picture when they think of a family dog, a running partner or a guardian, and the list has all three. The Golden Retriever and Bernese Mountain Dog are soft-tempered companions; the German Shepherd Dog and Rottweiler are working breeds that need a job and a confident owner; the giants, from the Great Dane to the Irish Wolfhound, are often the calmest dogs in the encyclopedia and have the shortest lives in it.
Size is the one thing on this page you can count on. Everything else, from energy to trainability to how a dog treats a cat, is a tendency of the breed and varies by line, upbringing and individual. Use the breed pages for those ratings. What size does reliably change is cost and logistics: food, medication and surgery all scale with weight, and a seventy-pound dog that pulls on the lead is a problem a smaller one is not.
That scale also matters when you book care. Not every sitter takes giant breeds, and the ones who do should have the space, the fencing and the strength to manage one. Many sitters on SitterNation state whether they accept giant dogs on their dog boarding profile, but the sitter still needs to meet yours before the first stay, ideally at their home so you can see where the dog will sleep.

Good-natured, water-loving gundog whose easygoing temper and appetite for play make it America's long-running family favorite.
Large · 11–13 years

Warm-hearted, biddable retriever with a flowing gold coat that wants nothing more than to be part of everything the family does.
Large · 10–12 years

Confident, quick-learning herding dog prized for police and service work, deeply loyal to its own people and watchful of everyone else.
Large · 9–13 years

Sharp-witted, athletic water retriever in three sizes, wearing a curly low-shed coat that needs regular clipping.
Toy–Large · 10–18 years

Powerful black-and-rust guardian descended from Roman drover dogs; steady and affectionate at home, serious about protecting it.
Large · 9–10 years

Tireless, liver-ticked all-purpose hunting dog that points, retrieves and swims, and needs an owner who runs as much as it does.
Large · 10–12 years

Imposing Italian mastiff with a thinking guardian's temperament; devoted and trainable but far too much dog for a casual owner.
Large · 9–12 years

Sleek, fast and intensely loyal guard dog bred by a German tax collector; a velcro companion that needs a job and firm guidance.
Large · 10–12 years

Muscular, square-jawed clown that stays puppyish for years, bouncing between goofy play and devoted watchfulness over its family.
Large · 10–12 years

Big, tricolored Swiss farm dog with a soft heart, happiest pulling a cart, lounging in snow or leaning on its favorite person.
Large · 7–10 years

Towering, elegant boar hound turned gentle homebody; patient with children, short on lifespan, and convinced it fits on the sofa.
Giant · 7–10 years

Lean, fawn-and-black Belgian herder favored by military and police units; blisteringly fast, fiercely driven and not a casual pet.
Large · 14–16 years

Graceful, long-nosed Scottish herder made famous on screen, gentle and devoted with children and available in rough or smooth coats.
Large · 12–14 years

One of the heaviest breeds on earth, an ancient English guardian whose calm, dignified presence does most of the protecting for it.
Giant · 6–10 years

Wheaten southern African hound marked by a ridge of reversed hair along the spine; athletic, independent and quietly protective.
Large · 10–13 years

Massive, web-footed Canadian water rescue dog with a famously sweet temperament, heavy coat and an equally heavy drool output.
Giant · 9–10 years

Spotted, tireless coach dog bred to trot beside horses for miles; needs serious daily exercise and a confident, consistent owner.
Large · 11–13 years

Rugged, oily-coated duck dog from Maryland's tidal marshes, tougher-minded and more protective than its retriever cousins.
Large · 10–13 years

Silver-gray German hunting dog with pale eyes and a restless engine, affectionate to the point of separation anxiety when under-exercised.
Large · 10–13 years

Big, bearded Bavarian drover turned police dog; intensely loyal, highly trainable and far too much dog for a casual or inactive household.
Large · 12–15 years

Wrinkled, long-eared tracking specialist whose nose is trusted in court; mild and affectionate at home, unstoppable once on a trail.
Large · 10–12 years

Bear-headed Japanese guardian of great dignity and loyalty, reserved with strangers, intolerant of other dogs and not for first-time owners.
Large · 10–13 years

Huge, soft-hearted Alpine rescue dog from the Swiss hospice pass, patient with children, slow-moving and generous with its drool.
Giant · 8–10 years

Powerful, low-key guardian originally used to pin poachers on English estates; calm and devoted at home, wary of strangers by instinct.
Large · 7–9 years

Massive white livestock guardian from the French-Spanish mountains; serene and patient by day, a vigilant night-time barker by instinct.
Giant · 10–12 years

Tallest of all breeds, a rough-coated Irish sighthound once used on wolves; gentle, quiet and sadly short-lived, with a calm dignity at home.
Giant · 6–8 years

Heavy-boned Arctic freighting dog built for hauling loads over long distances; playful and people-loving, but strong-willed and a champion digger.
Large · 10–14 years

Glamorous mahogany bird dog with a rollicking, forever-young personality; needs room to run and forgives almost anything with a wagging tail.
Large · 12–15 years

Rugged Turkish flock guardian that patrols its territory and thinks for itself; steady and loyal to its people, not a breed for first-time owners.
Giant · 11–13 years

Shaggy, bear-like drover with a rolling gait and a clownish streak; good-natured with everyone but demands hours of brushing every week.
Large · 10–12 years

Broad-headed French mastiff with a wrinkled face and a slobbery grin; calm and deeply attached to family, with a serious guarding streak.
Giant · 5–11 years

Glossy black or liver gundog nicknamed the Peter Pan of retrievers for its lifelong puppy spirit; exuberant, sociable and built for the field.
Large · 8–10 years

Lion-maned German giant created as a stately town mascot; gentle, water-loving and remarkably patient with children despite its enormous size.
Giant · 7–9 years

Burly, tousled cattle dog of the Flemish lowlands that once pulled carts and drove herds; steady, protective and quietly devoted to its family.
Large · 10–12 years

Long-coated, black-masked variety of the Belgian shepherd; elegant, intensely driven and happiest when its brain and legs are both busy.
Large · 12–14 years

Fastest dog on earth and one of the laziest indoors; a gentle, sensitive sighthound that asks for a soft bed and a few sprints a week.
Large · 10–13 years

Designer cross
Australian Shepherd and Poodle cross that combines herding drive with a curly, often merle coat; a cross with no breed status.
Toy–Large · 10–14 years

Designer cross
Bernese Mountain Dog and Poodle cross that keeps the tricolor look with a curlier, lighter-shedding coat; a cross, not a breed.
Small–Large · 12–15 years

Designer cross
Golden Retriever and Poodle cross, not a recognized breed: a sociable, wavy-coated family dog that varies by generation and size.
Small–Large · 10–15 years

Designer cross
Labrador Retriever and Poodle cross first bred as a guide-dog prospect; a friendly, busy hybrid rather than a registered breed.
Small–Large · 12–15 years

Designer cross
Miniature Schnauzer and Poodle cross with a wiry-to-curly coat and a watchful streak; a hybrid without a breed standard.
Toy–Large · 12–15 years
Browse all dog breeds and cat breeds, or see the other breed lists.