Reservoir Dogs: The 25 Most Dangerous Breeds to Stay Away From

No, they don’t bite without a cause, but in case of aggression these dogs are extremely dangerous. Under normal circumstances they behave friendly and get along with the rule: Serve and Protect. Often they are the kids’ best friends. But for goodness sake, don’t make them angry.



This African breed was developed to protect farms and deter predators.


Cane Corso

This muscular breed is a guardian and hunter, but not a fighter. Cane Corso is closely related to the Neapolitan Mastiff.


German Shepherd

Massive and strong, these loyal dogs are often used by army and police. Dogs of this breed can be strong-willed and need to be trained.



Classic fighting dogs, this breed falls into the category of those you should never be kidding with.


Rhodesian Ridgeback

A breed from South Africa, Ridgebacks were known as lion hunters. By now they are semi-domesticated.


Tosa Inu

A Tosa Inu is also called a Japanese Mastiff. Often they are compared with sumo fighters. This breed is restricted in some countries.


American Bandogge

This dog is a cross between an American Pit Bull Terrier and a Neapolitan Mastiff. It looks brutal, but originally American Bandogge wasn’t developed as a fighting breed.


Bull Terrier

This breed is famous for its egg-shaped head. It has very muscular shoulders and strong under-jaws.

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Saint Bernard

This giant breed is used for rescue missions. Saint Bernards are very friendly, especially with children, but they should be trained.


American Bulldog

The American Bulldog is a guardian and working dog for American farms. All bulldogs can be very dangerous when angered.


Gull Dong

A cross between Gull Terrier and Bully Kutta. It was bred as a fighter in Pakistan, so these dogs are extremely dangerous and not very friendly.



It’s difficult to believe that this breed could be dangerous, but Basenji are perfect hunters.


Great Dane

The record holder for the tallest dog in the world. The Great Dane was bred to hunt deer, but as we see here some of them lose this instinct.


Fila Brasileiro

Also called the Brazilian Mastiff, this is a large dog from South America. It is an agressive dog, which is why the Fila is illegal in many countries.


Perro de Presa Canario

A hard to train breed, it was developed in Spain for work. These dogs can be very aggressive, even toward people.


Akita Inu

This Japanese breed is smart and very protective of its territory.

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It is a playful and funny breed, but sometimes boxers are very aggressive.


Chow Chow

This Chinese breed needs 24/7 attention because of its independent temper and many out-of-control episodes.



They are perfect guards and aggressive behavior is usually caused by bad ownership.


Doberman Pinscher

This German breed is one of the best guard dogs in the world. Due to their size they are very dangerous, but dobermans attack only after being provoked.



First of all they are sled dogs, but huskies also have a strong predator instinct.


Dogo Argentino

They were bred to hunt for big-game in South America. This breed has been restricted in the UK since 1991.



Caucasian Ovcharka

This breed is very courageous and intelligent, but also needs socialization to stay friendly.


Wolf Hybrid

Very strong dogs with unpredictable behavior.


There are also some specific breeds developed for dogfights or military needs. It is not the best idea to keep these breeds at home. If your protective dog has ever saved you from a dangerous situation, share your story below.

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