There is no doubting the loyalty of our canine friends as it is often said that dog is man’s best friend. Man and dogs have coexisted for ages and the relationship has been mostly mutually beneficial. Dogs are friendly, playful, and loyal but they can be very dangerous too. Any dog breed can be dangerous to humans depending on upbringing and temperament. But then, there is no denying that some dog breeds are potentially more dangerous than others.

The dog breeds discussed here are some of the most dangerous. It is advised that you are calm and extra careful when around such dog breeds.

Pit Bull

A very popular highly energetic and vicious dog breed. Pit bulls were originally bred as fighting dogs so it isn’t surprising that the breed features on this list. A typical pit bull is extremely aggressive. This, coupled with their brute strength and determination makes for a very dangerous dog breed.

Pit Bulls have powerful jaws with strong bite force and are known to not release their bite. You certainly don’t want to experience the wrath of a pit bull.


Rottweilers are classed as medium-large dogs. The dog breed is highly temperamental which is why it is highly recommended that only expert dog handlers own Rottweilers.  In the U.S, Rottweilers are responsible for the second-highest number of dog attacks. Great care and caution are needed when dealing with a Rottweiler. These dogs are highly temperamental and it takes an experienced dog handler with a calm and confident personality to handle one.

These dogs are great for herding due to their protective nature and strength. They are now used as search and rescue dogs, guards dogs, and also as police dogs.

German Shepherd

This is another very popular dog breed. You may know them as police dogs as they are often employed by police all over the world in crime-fighting. The typical German shepherd is friendly and less inclined to attack humans but under certain circumstances, these dogs can become vicious and dangerous.

They are highly protective dogs and will do anything to defend and protect their packs (which includes their human owners). If a German shepherd senses someone or something as a threat to its pack, its protective senses will kick in and it will attack. Such attacks can be quite deadly as these dogs pack considerable biting strength due to their big size.


American Bulldog

The American Bulldog is a dog breed that descended from the now-extinct Old English Bulldog. This dog breed is often described as large, strong and tough. It is a stocky, well built, strong-looking dog. It has a large head and a muscular build with its shoulders and chest being its most muscular parts.

American bulldogs are usually confident, social and lively dogs. They share a strong bond with their owners and are happiest when given time and attention by their owners. Bulldogs are less friendly with strangers so they must be socialized.

Bulldogs should never be left alone, bored, in a house or anywhere else day after day. The reason is that they may become fearful and aggressive towards things they don’t know or understand if left alone for long. Bulldogs are known to destroy furniture, shoes and so on if not engaged. You must be mindful of this if you own one and not leave it on its own for too long.

This dog can easily be triggered by anything/anyone including other dogs and children. It does not trust anyone at first sight and so must be properly trained to identify a threat and what is not. This further underscores the need for this dog breed to be socialized.


The bullmastiff is another dog breed in our top 10 dangerous dogs. Mastiffs are large powerful dogs that have historically been used as guard dogs. Bullmastiffs like other mastiffs are strong and powerful. They are also sensitive which makes it important that they are properly trained. Without proper training, your bullmastiff is likely to be badly behaved.

Training and socialization for bullmastiffs are of high importance. The dog must be trained consistently for it to become a well-behaved family member. As stated earlier, mastiffs have historically served as guard dogs. So, no special guard training is needed for a bullmastiff to react appropriately to a threat. They are naturally wired to protect their owners.

Siberian Husky

The Siberian husky is a medium-sized working dog that came from Northeast Asia. The dog breed is smaller but similar to the Alaskan Malamute. They are active, energetic and resilient dogs. They were bred by the Chukchi people for sled-pulling, guarding and companionship.


Siberian huskies are tough and resilient dogs. Their ancestors lived and survived the extreme cold and harsh environment of the Siberian Arctic. They howl instead of barking like most other dogs. Siberian huskies were bred in a family setting so they can be trusted with children.

They are generally well-behaved but can be destructive without proper care. They tend to hunt preys because of their hunting instincts. The Chukchi allowed them to roam free in the summer, hunting small animals like birds and squirrels for food. They would only return to the Chukchi villages when food becomes scarce in winter. With training, Siberian huskies can learn to suppress their hunting instinct and be friendly to small animals.

St Bernard

This large dog breed can be referred to as a gentle giant. They are calm and sweet with humans, both adults and children. They are generally gentle, loyal, and affectionate. However, as with other large dog breeds, they must be socialized. Proper training and socialization with humans help them to become friendlier.

Training must commence while the dog is still a puppy. That is because it is more difficult to train an adult dog, more so a large breed like the St Bernard.

Great Dane

This German dog breed is famous for its large size. It is a very powerful breed with a well-muscled body. Though large and physically imposing, the Great Dane is a friendly dog breed. They are friendly with humans, other dogs and pets.  They generally do not exhibit high aggressiveness and high prey drive.

Despite its gentle demeanour, the breed’s large size makes it dangerous. If not properly socialized, a Great Dane may become fearful or aggressive towards strangers and new environments. Generally, the Great Dane is a gentle and loving and is great around children if well trained.


This dog breed is quite popular, especially in western countries. It is a medium-large dog breed. Generally, Labradors are kind, pleasant and outgoing. They are excellent trackers due to their great sense of smell. Thus they are employed by many military and paramilitary formations around the world to help track smugglers, thieves, terrorists and the likes.


Labradors are mostly calm and are excellent family dogs. They are great with children and other animals. They are easy-going and trusting with strangers which makes them bad as guard dogs. Usually, they are not noisy but may bark sometimes at noise especially when the source is unknown.

While they are poor as guard dogs, Labradors are great for search and rescue operations, detection and therapy work. They are curious and exploratory and also love following people and interesting scents for food and attention. They are a highly intelligent dog breed. Their size makes them potentially dangerous but their even temperament means they are usually friendly even towards strangers.

Doberman Pinscher

Another very dangerous dog breed is the Doberman Pinscher. They are big, fearless dogs that are often used in Special Forces. Known to be fiercely loyal to their owners, Dobermans will defend their own anytime. This makes them excellent guard dogs

With their big size comes great strength and energy. The excessive energy they possess can make it difficult to deal with them. Training a Doberman can be exhaustive but still, it must be done. Dobermans require a great deal of exercise, training, and socialisation. If properly trained, you will certainly get the most out of your Doberman.

Dobermans are protective by nature and this can make them aggressive and irritable. As a result of this, they can be very dangerous. A Doberman attack can be fatal due to their big size and strength. With proper training and socialization, the aggressive nature of this dog can be put in check.

Conclusion (Top 10 Dangerous Dogs)

Dogs no doubt have served as man’s best friend for centuries. Some breeds are calm and quite social while some others are more prone to attack when triggered. Such highly volatile breeds are dangerous to both man and other animals. These dangerous dog breeds are best handled by experts and are not recommended for amateurs.

These top 10 dangerous dogs are responsible for a great percentage of dog attacks in the U.S and other Western countries. With adequate training and socialization, these dangerous dogs can better adapt to being around humans, especially children.

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