The 15 Most Dangerous Dog Breeds

The 15 Most Dangerous Dog Breeds

Author WDF Staff


Dogs have been man’s best friend for centuries. They are loyal, adaptive and will protect their human by any means necessary. As a result, they can become aggressive towards strangers and in some cases attack them.

If you are a dangerous breed owner, getting a muzzle might be a good idea while your dog is still in training. The IREENUO Dog Muzzle is one of the best options.

Any dog breed can be a threat but some dog breeds can cause more harm than others because of their characteristic. Here are the top 15 dangerous dog breeds in the world:

15.Siberian Husky

Siberian Huskies were bred as working dogs. They have high energy and they need an owner who will know to use that energy for a good cause. They tend to be wild sometimes so you need to start training early. Because of their high prey drive, it’s not recommended to leave them alone with other animals. Read more about the Siberian Husky.

siberian husky

14. Boxer

When we talk about the Boxer dog many people don’t realize how dangerous they can be. Normally they are playful and good family dogs. They are hunting dogs and today are mostly used as guard dogs. Boxer is extremely loyal and will do anything to protect his family so he is only a danger to other animals and people who are not in his family. They can be very stubborn so training needs to be consistent. They also require a lot of exercises to keep them happy. Read more about the Boxer.

boxer dog

13. Tosa Inu

Tosa Inu dogs were bred in Japan primarily as fighting dogs. Today they are banned in some countries. Even today they are used in dog fighting around the world but mostly they are used as guard dogs. Tosa Inu is affectionate with his own family and can be aloof with strangers. Read more about the Tosa Inu.

Tosa Inu

12. Alaskan Malamute

Alaskan Malamutes were originally used as sled dogs and for carrying heavy loads. They are capable of surviving extreme temperatures. These dogs are very intelligent with high prey drive. They are very difficult to train to most people. Alaskan Malamute dogs require experienced owners who will train and socialize them from a young age because this breed can be very aggressive. They are slow learners so you will need to have a lot of patience while training them.

alaskan malamute

11. Bullmastiff

Bullmastiffs are powerful, fierce and strong dogs. They are great guard dogs with a naturally aggressive temperament. Bullmastiffs are incredibly reliable and obedient with proper training. Early socialization is a must for these dogs to prevent any unpleasant situations. Read more about the Bullmastiff.


10. Dogo Argentino

Also known as Argentinean Mastiff, they were bred for big game hunting. Dogo Argentino is considered a dangerous breed but they are very good with children if they are raised with them. In most countries, these dogs are banned (Australia, UK, Ukraine, Singapore, etc.) Read more about the Dogo Argentino.

dogo argentino

9. Boerboel

Boerboel – rare but a very dangerous breed. They are intimidating but good guardians of their home and family. Boerboel is a trainable and versatile breed who will enjoy spending time with his family. Training and socialization should start early to secure a well-behaved dog. Read more about the Boerboel.


8. Wolf hybrid

These dogs are a cross between grey wolves and dogs. They have protective instincts and can be very wild and unpredictable. That is the result of breeding dogs with wild animals. This dog requires owner with a strong personality and experience who will know how to handle them. Be sure to make some research before you decide to get this dog. Owning and breeding Wolfdog is prohibited in some countries.

Wolf hybrid

7. Caucasian Shepherd

Caucasian Shepherd is also known as Caucasian Ovcharka. They are fearless and fierce when they see a threat, but very devoted, soft and kind to his own family. They were used for centuries to protect properties and guard livestock. Caucasian Ovcharka won’t back down from a fight even against bears of wolves. They are not a good choice for a first-time dog owner.

caucasian shepherd

6. Doberman

Dobermans are fearless dogs who were primarily bred to be intimidating. They are very intelligent and strong dogs that will do anything to protect their owner. Mostly they are used as guard dogs. If they are not properly socialized they can cause big damage and if you raise them right you will get the best family dog who will do anything for you. Read more about the Doberman.


5. German Shepherd

German Shepherd is one of the most popular dog breeds in the world even though they have a reputation as one of the most dangerous dogs. That is the main reason why this breed is mostly used for police and military purposes. They always need a job to do or they will become destructive. German Shepherds are not a good choice for the first-time owner. Like any other breed, German Shepherd can be very good family dogs if raised and socialized properly. Read more about the German Shepherd.

german shepherd

4. Fila Brasileiro

Fila Brasileiro or Brazilian Mastiff is a very aggressive and protective dog that makes a great guard dog. The word “filar” in Portuguese means to “hold, grab.” They are not suited for inexperienced owners. Even with the right socialization and training, this breed is naturally protective.

fila brasiliero

3. Perro de Presa Canario

Presa Canario is a very powerful, large and intelligent dog breed that derives from the Canary Islands. They were bred to be a guard dog. Presa Canario dogs need early socialization and training. Because of their high prey drive, they are not for the inexperienced owners. If you don’t ensure them with proper exercise this dogs can become destructive. Read more about the Presa Canario.

presa canario

2. Rottweiler

Rottweilers have a fearsome reputation. They are very intelligent and very good guard dogs. They are considered one of the most aggressive dog breeds so they need constant training and socialization. They need a firm owner who will know how to treat them. Rottweiler is not a good choice for a first-time dog owner. If raised well from puppy age Rottweilers can be wonderful pets and great companions. Read more about the Rottweiler.


1. Pit Bull

The most dangerous dog breed in the world is the Pit Bull Terrier. Pit Bulls were used for dog fighting for a long period. They are extremely strong and muscular dogs with great jaw bite power so it’s understandable why so many people fear them. They have been called nanny dogs but with all media coverage of bad news including Pitt Bulls, today not so many people will go after Pitt Bull Terrier although they make great family pets if raised and trained well from the puppy age. You shouldn’t believe everything you read about these dogs. They are very dangerous and can be very aggressive but with the right training and early socialization, they can become excellent dogs.

pitt bull terrier

Some dog breeds are more aggressive by nature than others. It is important for every dog breed that you socialize and start training them as early as possible so you will end up with a well-behaved dog. Every dog breed is trainable (check most trainable dog breeds), so it’s up to you to put in the work and the time with your dog. Even the most dangerous dog breed can grow up to be good and well-behaved dog.

World Dog Finder team