10 Largest Dog Breeds by Height, Weight, and Personality

Mastiffs are the heaviest dog breed, and Irish wolfhounds are the tallest. Big dogs can have big personalities and provide companionship, but they have special considerations to be aware of.

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If you’re looking for a dog breed that provides comfort and security, with a larger-than-life personality, you might want a big dog. Large dogs can be appealing and useful, providing protection and even more to love. However, large dog breeds have some special considerations and things to know before getting one.

Here are the largest dog breeds and the best ones for companionship and loyalty.

10 biggest dog breeds

The table below shows the largest dog breeds, their most winning feature, and what role they’re best suited for, according to the American Kennel Club (AKC).

Just how big are we talking?

When looking at the largest dog breeds, height and weight can vary by gender. Generally, big dogs can range from 23 to 32 inches in height and 70 to 230 pounds. Many giant dogs are part of the working group and have a striking appearance. These dogs were bred to work and help with pulling sleds, protecting flocks, providing security, and more.1

Breeders typically consider height at the shoulder when the dog is on all fours, standing height on hind legs, weight, musculature, and the dog group. These factors combined create the largest dog breeds.

Biggest dog breeds by height

If you’re looking at giant dog breeds, height is a consideration. Here are the top three tallest dog breeds, including their height at shoulder, weight, and life expectancy, according to the AKC.

Biggest dog breeds by weight

Giant dogs have a commanding stature and come in many different sizes. Here are the top three heaviest breeds by weight, including height at shoulder and life expectancy, according to the AKC.

Big dog breeds with the best personalities

Large dogs may have been bred for different purposes. If you’re looking for a big dog with a bright personality, here are some that make great companions:

  • Saint Bernard: Patient, playful, and good with children, Saint Bernards have a personality that’s easy to love.

  • Great Dane: If you want a friendly, reliable, and commanding dog, a Great Dane may be a good fit. Great Danes are gentle giants and can provide security and companionship.

  • Leonberger: Known as a kind, gentle, peaceful dog, Leonbergers are the definition of a furry friend.

  • Newfoundland: This “nanny dog” is a devoted, kind breed that’s good with kids, according to the AKC.

  • Bernese mountain dog: These affectionate and loving dogs are good with young children and often form deep emotional attachment.

Pros and cons of big dogs

Large dogs are unique in that many of them were bred for a specific purpose, such as watching the farm, providing protection, pulling sleds, and more. Some of the biggest dog breeds can be gentle giants and provide dog lovers security and comfort.

Before adding a large dog to your family, consider the pros and cons.2

Big dog breed costs

Big dogs can come with big costs. If you’re considering getting one of the largest dog breeds, review your budget and total costs. Here are some common expenses associated with larger dogs.

Largest dog breed FAQs

If you’re considering one of the largest dog breeds, you may have some questions. Here’s some additional information about large dogs.

  • What is an XL dog breed?

    Various types of large dogs can differ by weight. An extra-large, or XL, dog breed is typically one that’s 100 pounds or more. Dogs like cane corsos, Great Pyrenees, Irish wolfhounds, and Great Danes are all considered extra-large breeds.

  • Which dog breed is heaviest?

    The heaviest dog breed is the mastiff. Female mastiffs can weigh up to 170 pounds, while male mastiffs can weigh up to 230 pounds. At those weights, Mastiffs can be heavier than some humans.

  • Which dog breed is tallest?

    The tallest dog breed is the Irish wolfhound. Female Irish wolfhounds can be 30 inches at the shoulder, and males can be 32 inches at the shoulder. The Irish wolfhound is officially the tallest dog breed, according to the AKC.

  • What is the laziest big dog?

    Irish wolfhounds are part of the largest and tallest dog breeds, but they’re also a lazy breed.

  • What large dog breed is best for families?

    Two large dog breeds good for families with children include Saint Bernards and Newfoundlands. Saint Bernards are protective and fond of children, while Newfoundlands are referred to as a nanny dog, according to the AKC.

Melanie Lockert
Melanie Lockert

Melanie Lockert is the founder of the blog and author of the book, "Dear Debt." Through her blog, she chronicled her journey out of $81,000 in student loan debt. Her work has appeared on Allure, Business Insider, Credit Karma, Fortune, and more. She is also the co-founder of the Lola Retreat and host of the Mental Health and Wealth show podcast. She lives in Los Angeles and enjoys jazz music, traveling, coffee, and spending time with her two cats and partner.

Melanie has been a contributor at Insurify since November 2022.

10 Largest Dog Breeds by Height, Weight, and Personality | Insurify