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Are Great Pyrenees Aggressive? Breed Facts, Temperament & FAQ

Misty Layne
By Misty Layne · Reviewed & fact-checked by Dr. Chyrle BonkVet Approved
Dr. Chyrle Bonk
Reviewed & Fact-Checked byDr. Chyrle BonkDVM (Veterinarian)
On top of caring for animals and writing for veterinary publications, Dr. Chyrle Bonk owns a small cattle herd! When she’s not busy with those things, she can be found somewhere enjoying the Idaho outdoors with her husband and two kids. Dr. Chyrle Bonk received her Doctor of Veterinary Medicine (DVM) from Oregon State University in 2010.View authorThe information is current and up-to-date in accordance with the latest veterinarian research. Learn more
Updated on June 17, 2026
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great pyrenees dog lying in the yard

Great Pyrenees are large, loyal, protective, and gorgeous. However, due to their size and protective nature, some believe that the breed is aggressive. Great Pyrenees are not inherently aggressive, but they do have certain tendencies that can be misconstrued as aggression at times. And, of course, any dog that isn’t properly socialized may very well end up having behavioral problems, including aggression. However, overall, this breed tends to be a rather gentle one.

If you’re considering adopting a Great Pyrenees but are concerned they may be aggressive, here’s what to know about this breed’s temperament and the instincts and tendencies that are sometimes misconstrued.

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The Temperament of the Great Pyrenees

This dog breed is known for being gentle. They’re also affectionate with their loved ones, independent, and confident. And, as we’ve mentioned, they have a protective streak, which can be chalked up to their original purpose, which was guarding sheep. Now, the Great Pyrenees may be more of a companion and less of a guardian of sheep, but their protectiveness and desire to take care of extends to their human family. This breed is also incredibly loyal and occasionally strong-willed.

If these dogs are properly socialized and trained from an early age, they make fantastic pets for all kinds of people!

Image Credit: schubbel, Shutterstock
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Why Do People Think Great Pyrenees Are Aggressive?

So, if Great Pyrenees are gentle giants, why do some worry that the breed is aggressive? There are four behaviors this breed might exhibit that could be misconstrued as aggression. In most cases, it isn’t; however, it’s important to remember that any dog can be aggressive, and aggression in canines is a multi-faceted behavior resulting from many things, such as socialization, genetics, and environment.

1. Fear

Any dog can be afraid of something, even the large breeds, and behavior that is based in fear can be misconstrued as aggression. If a dog is confronted with something they find intimidating or terrifying, they could very well respond in a defensive manner, which can look like aggression. So, it’s vital that a dog owner recognizes the difference between fear-based behavior and actual aggression.


2. Protective Nature

As we’ve said, the Great Pyrenees is a highly protective pup, and their protective nature can sometimes be taken as aggression. This is because when these canines go into protective mode, they may position themselves between you and the perceived threat and begin to bark loudly. Likely, their behavior won’t progress further than a bark, but it can still be scary to see a large dog barking threateningly. Again, this is likely a protective instinct and not aggression.

Image Credit: Cody Hanson Photography, Shutterstock

3. Socialization

Because the Great Pyrenees is so protective, early socialization is vital to their upbringing. Without this, they can become overly wary of strangers, new animals, and more, which can lead to unwanted behavior. A properly socialized Great Pyrenees, though, is better able to differentiate between a real threat and one that is actually harmless. They’re also more comfortable when introduced to new people, animals, and places, which reduces the chances of fear and aggressive behaviors.


4. Territorial Behavior

Another tendency many Great Pyrenees have is to be territorial, especially of their homes. They sometimes don’t take well to new animals or strangers entering what they view as their territory, which can cause them to be wary and standoffish. This is typically normal dog behavior, though, and shouldn’t be misconstrued as aggression.

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How Can I Keep My Great Pyrenees From Becoming Aggressive?

If you’re considering adopting a Great Pyrenees and are concerned they may come across as aggressive or actually exhibit aggression down the road, there are several things you can do to prevent this from happening.

Socialize Your Dog

We’ve mentioned this a couple of times now, but proper socialization is key to curbing tendencies that seem aggressive and actual aggression in canines. Begin socializing your Great Pyrenees the moment you get them by introducing them to new people, dogs, animals, places, and things in a controlled manner. Doing this helps ensure they become well-adjusted adult dogs who are less likely to be afraid of everything.

Train Your Dog

Training is another aspect of dog ownership that should never be skipped over. Train your Great Pyrenees from a young age using positive reinforcement and consistency. With proper and consistent training, you can create a solid foundation to help your dog through any uncertain situation.

Image Credit: thecandacemiller, Shutterstock

Fence in Your Yard

You can help ward off territorial behavior and this breed’s natural protectiveness by having a fenced-in yard for them. This also has the benefit of preventing them from roaming and getting lost, and it will help keep other animals out of your yard.

Provide Plenty of Stimulation

A bored dog is more likely to develop behavioral issues, but you can help to avoid that by ensuring your Great Pyrenees receives enough physical and mental stimulation each day. These canines are fairly active and need daily exercise in the form of walks and playtime. For mental stimulation, try puzzle games, training your dog to do tricks, or teaching them doggie sports.

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Final Thoughts

The Great Pyrenees is truly a gentle giant and not typically prone to aggression. However, due to their protectiveness, loyalty, and sometimes territorial nature, they may engage in behavior that people misconstrue as aggression. You can help your pup engage in fewer of these behaviors via proper socialization and training. Providing them with a fenced-in backyard that can be a safe space and plenty of physical and mental stimulation will also help your dog immensely.

Sources

Featured Image Credit: Sierra Tango, Shutterstock

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Misty Layne
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