9 giant dog breeds known for size and gentle temperament


Giant dog breeds are really impressive, but it is not just about their size or presence but also the way that they instantly stand out in any room. When you meet them first, you’ll feel that they are huge and fierce, but upon spending a few minutes with them, you’ll realize some of them are actually “gentle giants.”

Despite being huge, they are soft, gentle, and very affectionate. Over the years, pet parents have realized that a bigger size means greater responsibility, which comes with more food, more space, more care, and more training needs, all so they can live comfortably.

If you are ready for this, the following are some of the large-sized dog breeds known for their massive size and unique personalities.

1. Great Dane

Portrait of older stately Blue Merle Great Dane

Great Danes are among the tallest dog breeds ever known in history. If you ignore their size, they are true “gentle giants”: very sweet, calm, and extremely friendly with their families.

When indoors, they have low to moderate energy as they take up more space than required. But, if you want to see them active and physically stimulated, take them on a run and watch how they impress everyone.

Great Danes have a short coat, thus making their grooming easy. Unlike other dogs, this dog has higher food needs. One thing that Great Dane lovers need to be aware of is that their life span is shorter, so they give all the love and care.

2. Saint Bernard

cute black white and brown St. Bernard dog sitting on green grass in field in sunny summer day, owner stroking head and cheeks, dogwalking concept

Saint Bernards are huge, furry dogs, but are born with a soft and sweet nature. This breed is heavily built and is known for its rescue history. They like to spend some fun-loving time, especially with kids.

Saint Bernards are always low on energy, and they feel happy just by sitting while everything around them might be chaotic.

A quick thing you cannot ignore is that drooling is a part of life with them. As mentioned earlier, this furry dog has a thick coat and needs regular care along with some daily movement to stay healthy.

3. Mastiff (English Mastiff)

An English Mastiff puppy in an urban environment. A beautiful powerful breed of companion dogs. High quality photo

Also known as the English Mastiff, this dog breed is really huge in both size and weight. They have a strong guarding instinct and are very protective of their family. A plus one for them is that they have relatively low exercise needs and prefer a calm environment; that said, they are usually relaxed at home.

Because of its massive size, giving them consistent training should be a top priority for all Mastiff owners, as they can be stubborn at times, too. Feeding them is a big responsibility, as they eat a lot.

4. Newfoundland

large black newfoundland dog walking in winter park on white snow, walking on snow trail, red collar, dogwalking concept

Newfoundland is large and powerful and, amongst all, the strongest swimmer. Besides being known for their water rescue abilities, they are extremely gentle, kind, and sweet. They are actually great with kids and show a lot of patience compared to others.

You’ll often see Newfoundlands standing next to a child in a pool or even trying to “guide” them back toward the edge. This is a swimmer’s instinct. Their thick coats shed a lot, so pet parents must ensure proper grooming.

5. Irish Wolfhound

An Irish wolfhound takes part in the St. Patrick's Day Parade on Fifth Avenue in New York, N.Y., Tuesday, March 17, 2026. (Photo: Gordon Donovan)

Another tall breed you’ll see is the Irish Wolfhound. They stand out instantly among others. They are opposite to what their size is; that said, they are very soft, gentle, and completely non-aggressive.

Being active, they just need short bursts of movement and enough space to stretch out. They may attempt to climb onto furniture despite their size. Overall, they’re peaceful to live with.

6. Leonberger

A female Leonberger tilts her head inquisitively in an autumn forest clearing, surrounded by pine trees and filtered sunlight on a leafy ground.

Burgers or Leonbergers? You chose which one because this dog breed equally impresses you with its lion-like appearance and comes with a very warm and friendly personality and a balanced temperament. They are friendly and social and behave like a good family member.

You’ll often see this dog happily joining a family outing, then later lying down right in the middle of everything as they belong there. Pet parents should know that the Leonberger’s coat needs regular grooming.

7. Tibetan Mastiff

Bitch dog breed Tibetan Mastiff standing in the snow

Guard dog or strict landlord? You decide because Tibetan Mastiffs are huge dogs, and they carry themselves so well, as if they own the property. This dog breed is very independent and does not fall into the category of the “come cuddle me and show me love” type.

Tibetan Mastiffs have strong territorial instincts, and at the same time, they need an experienced owner who understands their guard-like personality and has prior experience with Tibetan Mastiffs. Their thick coat requires proper grooming, but it does well in cold climates.

8. Great Pyrenees

huge white Pyrenean Mountain Dog sitting on country road in green field outdoors in sunny summer day, head closeup view, sunset, dogwalking concept

A dog might be active and guarding at night, but have you seen him guard livestock even during the day? The Great Pyrenees is classified as a large mountain dog that carries that same calm but watchful energy at home.

You might spot them noticing every movement around them for hours. They are gentle with families but, at the same time, need space. Their thick coat sheds a lot, and they are too fidgety, needing a lot of space around them.

9. Bernese Mountain Dog

A bernese mountain dog female looking at the camera, posing for her picture, between a red and purple mum against a brick background. She is looking directly at the camera, with only her head and part of her body visible

A big dog with a soft and sweet personality is the Bernese Mountain Dog. This dog breed is very gentle and affectionate and behaves extremely well with the family and kids, too. Though they possess moderate energy, they love being a part of the outdoor environment.

Pet parents will have to worry about their grooming as their thick coat sheds a lot. Bernese Mountain Dogs are very sensitive, and for this reason, they’re the easiest to love!

Conclusion

After knowing some of the best giant dog breeds, you must have come to know that they come with a big presence and an equally big commitment. Considering their big size, they need even bigger space to move, sit, and play, a protein-rich diet, and consistent training to stay happy and well-behaved.

Many people believe that bigger dogs are aggressive, but size does not mean aggression at all. In fact, many of these breeds are known for a gentle temperament. One piece of advice that all pet parents need to follow is to choose a breed that matches their lifestyle and their love, too!


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