Do you know? Around 4.5 million dog bite cases are reported every year. Having wolves as their ancestors, dogs were domesticated and specifically bred to perform certain tasks. Dogs make loyal companions and wonderful playmates, but they are still animals in the end.
Although every dog has the potential to become aggressive, certain breeds are more likely to be involved in serious attacks due to their temperament, size, and strength. Most dangerous dogs usually have a strong biting force.
A dog can turn aggressive due to various factors, such as its inherent protective nature, poor training, and lack of socialization
Here are 7 most roughest dog breeds in the world.
Most Roughest Dog Breeds In The World
1. Rottweiler

Rottweiler is an intelligent and loyal dog breed that weighs up to 135 pounds, as per the AKC. These dangerous dogs are frequently involved in serious dog attacks. Rotties have been responsible for 33 of the fatal dog attacks during 1990 and 1998, according to ABC News.

Rottweilers have one of the strongest bite forces among domestic breeds, ranging between 320 to 328 PSI. It is painful, potentially dangerous, and strong enough to cause injuries. Proper training and socialization can help prevent destructive behaviors in rough Rotties.
One thing must be mentioned here: Rottweilers are not inherently aggressive dogs. Also, they never bite without a reason. However, their protective nature, combined with strength and muscular bodies, makes them appear intimidating.

Fun Fact: Rotties love to eat—these chubby buddies can easily convince their owners that they need to be fed more. Also, they think of themselves as lap dogs, no matter how big they get.
2. German Shepherd

German Shepherds have been serving as guard dogs and police dogs for several decades. They were originally bred as herding dogs, explains PDSA. That is why GSDs possess sharp protective instincts. While they are not responsible for as many fatalities as Rotties, they are still rough.

Standing up to 26 inches tall, they make an impact due to their size and power. Their strength and commanding presence mean that any negative behavior is more noticeable as compared to smaller breeds. This is the reason they have earned a reputation as one of the most high-risk dog breeds.
German Shepherds have a bite force ranging between 175-238 psi, as per GSD Colony. They have a high prey drive and are reserved, not happy-go-lucky like some other dog breeds.
Fun Fact: German Shepherds have stars on the Walk of Fame. Two GSDs named Strongheart and Rin Tin Tin are considered the most famous GSDs to appear on-screen.
3. American Bulldog

Bulldogs are stout doggos with a square jaw that provides a firm grip. Their tenacity, muscular build, and history as bull baiting dogs are enough to explain why they make to the list of most dangerous dog breeds.

Between 2005 and 2020, American Bulldogs were responsible for 3.2% of fatal dog attacks. With a bite force of around 305 psi, they are leaner, stronger, and potentially more dangerous than their British counterparts.
Bulldogs are not inherently aggressive. They tend to be gentle and friendly around their family. However, without proper training and in undesirable circumstances, wild nature can take over their domesticated pet demeanor.
Fun Fact: Many dog breeds are excellent swimmers. However, American Bulldogs cannot swim due to their stocky legs and bulky bodies.
4. Bullmastiff
Bullmastiff is a large and powerful dog that was originally bred to guard estates. These mighty dogs weigh up to 130 pounds, explains the American Kennel Club. Their size, muscular build, strength, and protective nature contribute to their reputation as rough dogs.
Bullmastiffs are gentle giants at home. But when it comes to their behavior towards strangers and other dogs, they can be one of the most dangerous dog breeds.
A Bullmastiff bite is likely to cause fractures, torn ligaments, tendons, muscles, and hemorrhages. In extreme cases, their bite can lead to fatal injuries. From 2005 to 2017, dog bite statistics show that Bullmastiffs have been responsible for 14 fatal dog attacks over a 13-year period, as per DogsBite.org.
Fun Fact: Celebrity Bob Dylan owned a Bullmastiff that used Katherine Hepburn’s garden as its personal bathroom when they lived next door to each other.
5. Alaskan Malamute
Another ruff-n-tuff breed, Alaskan Malamutes are large and energetic dogs bred for strength and endurance. Looking like wolves, Alaskan Malamutes are the sweet and playful family pets, but they have an independent streak that makes training a bit difficult.
These majestic pooches have a bite force ranging between 400 and 500 PSI. Alaskan Malamute fatal attacks are rare, but they have occurred.
An aggressive bite by an Alaskan Malamute will cause immediate and intense pain. It can also lead to tissue damage and broken bones. They are loyal and friendly as house pets, but perceived threats and a lack of proper training can turn them into an aggressive breed.
Fun Fact: Alaskan Malamutes resemble Siberian Huskies in appearance. However, Alaskan Malamutes are larger dogs with a robust physique. Also, their almond-shaped eyes are brown, unlike Siberian Huskies, which have heterochromatic eyes.
6. Doberman Pinscher
These sleek fellas have a distinctive black coat with tan markings. These pooches are alert and intelligent, making them excellent guard dogs. While it is a common misconception that Dobermans have a bite force of 600 psi, they actually have an estimated bite force of 305 PSI.
Doberman Pinscher is perceived as a dangerous dog breed, having a potential for vicious attacks. They are responsible for fatal attacks each year.

According to PetMD, Dobermans are energetic dogs. They do well with active pet owners and require space to roam and exercise. Their athleticism, strong build, and sharp reflexes can make any attack by this breed a matter of great concern.
Fun Fact: Dobermans do not like rain and cold. They have very little body fat and lack a double coat like some other breeds. So, you might need a doggy sweater for your Dobie in winter.
7. Boxer
Boxers are playful and energetic mutts, but they can become aggressive under undesirable circumstances. Their keen senses and guard dog temperament are responsible for their reputation as the most dangerous dog breed.
Boxers have a tremendous bite of 230 to 250 PSI, which may not be the highest among dog breeds. However, it is still quite significant and should not be underestimated. A Boxer’s bite can cause injuries like tears, bruises, and punctures.
These powerful mutts are known for their playful and affectionate disposition. Boxers display immense love and unwavering loyalty for their pet parents. However, they have a tendency to bite under situations like fear, pain, and territorial instincts.
Fun Fact: A Boxer named Rocky holds the Guinness World Record for the longest dog tongue. Rocky’s tongue measured exactly 5.47 inches past the end of its nose.
Conclusion
Some dog breeds with an immensely loyal nature and calm disposition can be extremely aggressive when it comes to protecting their people or their territory. They have a strong bite force and can become very dangerous under unfavorable situations and in the presence of perceived threats.
If you are planning to adopt one of these ferocious guardians, make sure they are properly trained and well socialized. It will help you unleash a loving and protective canine companion.