25 Most Dangerous Dog Breeds

Posted by on August 1, 2013

There are many factors that play a role when assigning a “danger” level to a dog but most critics and researchers disagree as to what these factors are. Consequently, it’s unfair to callously label a dog as dangerous. Nevertheless, it can’t be helped that some dog breeds have more potential to cause serious harm to a person if the dog were to decide to attack. Therefore, our 25 most dangerous dog breeds focuses on the potential of a dog to cause serious injury to a victim. It is important to note however that most dogs are bred with the desire to please their masters. Thus most incidents involving dogs stem from improper training and harsh ownership.


Dogo Argentino

The Dogo Argentino is a large, white, muscular dog that was developed in Argentina primarily for the purpose of big-game hunting, including wild boar and puma. Though extremely strong and athletic, the Dogo was bred to be non-aggressive towards humans. Nevertheless, it is illegal to own a Dogo in the United Kingdom under their Dangerous Dogs Act of 1991.


Boer Boel

The Boer Boel is a large, mastiff dog breed from South Africa which was bred for the purpose of guarding a home or farm. These dogs were often a first line of defense against predators and were valuable in tracking and holding down wounded game. Bore Boels are loyal but very protective of their families.


Gull Dong

The Gull Dong (also known as the Pakistani Bull Dog) is a cross breed between the Gull Tarrier and the Bully Kutta. Extremely strong and powerful, the Dong was specifically bred as a fighting dog and is known to be very aggressive and difficult to control.



A breed of hunting dog that originated from Central Africa, they have been classified as a sight hound. They exhibit alertness, curiosity and affection, though they are reserved with strangers. They are the 2nd least trainable of all breed types.


Saint Bernard

The St. Bernard is a breed of very large working dog that originated from the Swiss and Italian Alps. Originally bred as a rescue dog, they have been made famous by tales of their gargantuan size and Alps rescue mission abilities. However, just like with other very large dogs, they must be trained to be sociable with strangers and other dogs during their infancy in order to prevent aggressive territorial behavior.