Most Aggressive Dog Breeds: What Breeds Are Considered Dangerous?

Aggressive dog breeds refer to types of dogs that tend to display aggressive behaviors more frequently or intensely than other breeds. Some of these breeds include Pit Bulls, Rottweilers, Doberman Pinschers, and German Shepherds.

However, it’s crucial to note these behaviors are not solely determined by breed but are also significantly influenced by factors like training, socialization, and individual temperament. Thus, not every individual dog in these breeds will be aggressive.

In managing aggressive dog breeds, owners should commit to proper training and socialization from a young age, seek professional help when needed, provide a balanced diet and exercise, and ensure their dogs feel comfortable and safe in their environment.

Last Updated on September 20, 2023

There can be a lot media-perpetuated fear about the aggressiveness certain breeds .. This article does not intend to perpetuate fear-mongering. Any dog can be aggressive in certain situations. It is clear that aggression in any dog has more to do with its environment .

properly socialize , and train these breeds under a confident handler who can assert their dominance. These breeds are capable of becoming loving, gentle companions if they are given the right environment.

Most Aggressive Dog Breeds

Aggressive & Dangerous Dog Breeds

Before discussing the aggressive breeds, we need to emphasize that the owner is responsible in nearly all cases. While some breeds might look more dangerous than others , bad training, socialization and inappropriate rewards for problem behavior will all give dogs the structure they do not want to be well-balanced. Lack of leadership and lack of physical stimulation means that any well-intentioned dog can end up displaying aggressive behavior.

The breeds listed below are breeds that have either been known to “bite” or are in the top 10 of all breeds in caused fatalities from 2005 to 2017. Causation does not necessarily imply representation. Many bad dog owners end up with breeds who are strong-willed. This could lead to behavioral problems and unwelcome aggression. Love Your Dog believes that every dog can be trained correctly and have a fulfilling life. The bottom line is that some breeds are known for having a bad reputation. These reputations were passed down through the generations. Let’s look at the 20 most likely breeds to be labeled as “dangerous” or “aggressive.”


The tiny Chihuahua might not be as tall as some of the other dogs on this list but that should not mean you underestimate their fierceness. Weighing, on average, under 10 pounds this lap dog can sometimes be treated more as an accessory than an animal. These lap dogs are usually built with an Apple head or a Deer head ,. The head type does not make them less or more aggressive.

They can become territorial if they are not taught boundaries and given obedience training. Chihuahuas will snap at unwanted visitors and bite them. This is most likely an act of self-preservation. Even though you’re as small as a Chihuahua you have to be able to defend yourself and stand your ground. This instinct can be exacerbated by owners who spoil the breed, which can lead to aggression.

The Chihuahua is likely to inflict more bites per breed than any other breed. It has nothing to do with their genes. This is due to the fact many small dog owners fail to correct their dogs’ problem behaviors early. Chihuahua aggression is often ignored or encouraged by owners because they think it’s cute. This can lead to a small dog who is as aggressive as a Pitbull or Rottweiler.

Pitbull Terrier

Pitbull Terriers are notorious for their bad reputation. They were once considered the “nanny dog” by many families in the United States during the mid-1900s after World War II. They were great family protectors and fought alongside soldiers in World War II.

There are actually 4 different types of dogs that fall into the Pitbull breed family, which gives more opportunity for something bad to be credited back to this misunderstood breed. It’s not uncommon that many mixed Pitbull breeds are classified as purebred Pitbulls after an attack. They can be the most sweet dogs you will ever meet, despite insurance companies having issues with them. Unfortunately, plenty of bad actors have given them a poor reputation through teaching bad behavior habits and dogfighting.

These irresponsible owners have caused a lot damage to a sensitive breed. This breed is on the top 10 most aggressive dog breeds due to its high number of fatalities. We believe that all Pitbulls make great family pets and can do well with the right owners, regardless of their “label”.

German Shepherd

The wildly popular German Shepherd is a beautiful and powerful breed that has become a favorite working dog for militaries and police forces, along with being a top choice as a beloved family companion. These dogs are smart, agile, and loyal. They can also be trained to perform many tasks and are therefore a popular choice for working dogs.

If they sense that their owner is being threatened, they will protect them fiercely. The German Shepherd is a great guard dog. If they are not socialized, they can be territorial and aggressive. If they don’t get enough exercise or have too much energy, they can be aggressive.

Shar Pei

The Shar Pei, a Chinese breed, has a short, wrinkled hair. They remain somewhat of a rare breed, ranking 64th in popularity by the American Kennel Club. This breed is not a popular choice for Chinese dog fighting rings. These dogs were bred to be aggressive. A trait that has been passed down from generation to generation. Shar Pei are independent, territorial and strong-willed animals. Shar Pei require consistent, firm training from a dedicated owner who is patient and committed to socializing them properly. A breed that is well-built for fighting does not necessarily mean they will be able to fight.

Chow Chow

The Chow Chow Chow is widely regarded as one of the most dangerous dogs in the world. They can be impulsive and sometimes even turn on their owners, a trait that many of the other dogs on this list don’t have. Remember that every animal is unpredictable.

Those who know this breed well say their aggression is usually due to boredom. Therefore, it is important to socialize and exercise a Chow Chow. Chow Chows require confident handling to be able to assert themselves against dominant breeds.

Cane Corso

The Cane Corso is an intimidating dog with a muscular and large body. They are becoming a popular breed with police officers due to their intimidating appearance and easy training. This breed is, paradoxically, calm and quiet.

They can be aggressive if they are not properly trained by an experienced owner. This breed is not recommended for new dog owners. This pup will likely have a frightening appearance if they are socialized and given the right environment.


The Rottweiler is a popular breed choice for those looking for a powerful, loyal breed. They make excellent guard dogs. The media portrays this breed as a very aggressive dog. Rottweilers are used to being approached by strangers when you approach them. A well-trained, socialized Rottweiler is a great family pet.

However, it is important to socialize your dog from a young age in order to reduce their territorial aggression. You will find a loyal, loving, and kind pup who isn’t likely to be a danger to anyone or anything if you show them kindness, love, and consistent training.

Siberian Husky

This one might surprise you. The Husky isn’t just a fluffy ball that loves all it meets. Huskies are ranked in the top 10 of dog breeds that caused fatalities from 2005 to 2017. It’s hard to know if these were all purebred huskies, or just some type of husky mix that were responsible for the fatalities.

Although this isn’t as high as the other breeds, it’s high enough to place them on our list of dangerous dogs. The Husky can be a great companion if they are socialized properly. If they are not socialized well, the Husky can be protective of their family.


A name like Wolfdog is not surprising. It conjures up images of wolf packs attacking innocent prey. This breed is known for its high prey drive. To burn excess energy, they must be vigorously exercised. This can make it possible for a Wolfdog to engage in “hunts .”

.” *Experts believe this breed retains many of their wild natures from their ancestors. This can make it unpredictable. They are not suitable for novice owners. This breed requires a strong leader and consistent training. There are plenty of other dog breeds that look like wolves with milder temperaments, if wolfy looks are your thing.

Bull Terrier

The Bull Terrier is a stocky, intelligent breed with a lot of power. Bull Terriers are affectionate, playful and loyal companions. Bull Terriers are one of the most aggressive breeds of dog in the world. *They need consistent, long-term training and socialization, along with plenty of exercise, to be a happy, healthy, and happy dog. They can be destructive and aggressive if they are given too much attention. Bull Terriers thrive in homes that are familiar with the breed and who can discipline their dogs and show love and affection.


Boxers have been known to affectionately “box” with their front paws, which is what got them their name in the first place. They are one of the most aggressive breeds and many homeowners insurance companies will not insure them if they own one.

While most boxers are sweet, there are some that have landed on the top 10 list of fatality causing breeds from 2005 to 2017. They are our most dangerous and aggressive dogs.

Dogo Argentino

The Dogo Argentino is a stunning dog: all white and all muscle. This dog is both beautiful and powerful. Dogo Argentinos were originally bred to hunt big game. They can hunt wild boars and other large game. Despite their intimidating reputation, Dogo Argentino owners are happy to report a loving and dedicated dog who is affectionate and happy despite all the negative comments.

Unfortunately, some countries have banned this lovely breed due to their perceived aggression. It is certainly true that a Dogo Argentino should be trained by an experienced handler or else they can show signs of aggression, but that’s no different than many other breeds. Bans like these perpetuate the belief that some breeds are “innately bad.”

Doberman Pinscher

When asked to imagine an intimidating dog, most people will think of a Doberman Pinscher. This makes sense as these dogs have been bred over generations to be fearsome guard dogs. They are almost synonymous with the “aggressive breed .”

” concept.

The loyal Doberman may have been misunderstood as a violent dog. If they sense danger, they will protect their families loyally. A well-behaved Doberman Pinscher will be more friendly than other dogs if they are socialized and trained consistently by experienced owners.

Shiba Inu

Shiba inus are well-known for their endless energy and “cat-like” temperaments. They can be independent and aloof. Female Shiba’s can be territorial with other animals. To ensure that Shiba doesn’t get into any fights, it is important to be careful when taking Shiba to the dog park.

They have a high prey drive and prefer to be dominant in the pack, therefore they need a strong leader who enforces boundaries and socializes them regularly. Shiba Inu’s energy levels can cause them to become agitated.

Rhodesian Ridgeback

The Rhodesian Ridgeback is a powerful canine. This strong dog was originally bred to hunt and defend African farms from predators. This dog is ferocious, brutal and it’s obvious why. Some consider them dangerous due to their prey drive, speed and ability to hunt.

Rhodesians Ridgebacks are loved family members and their owners often report them as gentle and loving. They do require a lot of exercise and training to become Ridgebacks. Anyone looking to adopt one should be prepared to put in the effort and not live in a restricted area.


This adorable, fluffy toy breed might be a surprise on a list that includes the most aggressive dog breeds. This cute puppy can still be quite aggressive despite all the fluff. The Pomeranian is one of the most popular dog breeds in the US, coming in 23rd in AKC’s popularity ranking. They are notorious for being expensive for such a small package.

Pomeranians are also known to be territorial and act suspiciously and even aggressively towards strangers. Pomeranian’s are known for their loud bark, which will alert you when someone approaches. As with all dogs, the Pomeranian can be trained to adapt to new environments, people, and animals.

Saint Bernard

Saint Bernards aren’t aggressive dogs because they don’t want to be violent. These gentle giants have a calm, timid disposition and are well-known for their gentle nature. These large canines are notoriously difficult to train. The possibility of an accident where someone is hurt is higher when the animal can be easily scared.

The danger to a Saint Bernard is not their temperament, but their size. This is why it is important to provide positive reinforcement training and socialization for this breed to help them get out of their shells. This giant breed can be loved unconditionally if it’s done correctly.

Labrador Retriever

It’s crazy that the Labrador Retriever would be on this list. It’s really a numbers game for Labrador Retrievers. Labradors are some of the most highly owned dogs in the United States. You’re more likely to get bitten, injured, or maimed by certain breeds if there are more of them.

Although most Labradors can be loved and cared for by their families, they can also become aggressive if not socialized, trained, and properly socialized early in their lives. Some dog bite statistics are even more difficult to believe because of the many Labrador mix dogs that fall under “Labrador”.


The Bullmastiff is a breed that has been around for over 100 years now, after having a Mastiff crossed with an English Bulldog. Because of their English Bulldog heritage, these pups can become very defensive of their immediate family, which is not much different from the English Mastiff.

Dogs that aren’t properly trained in their early years can be frightened of strangers and even family members who visit your home. Bullmastiffs are often bitten by someone they “know”. They are also challenging to train, and are known for being less intelligent than other breeds.


Akita’s are known for being very independent dogs. Akitas are powerful and dominant breeds that require a skilled and experienced handler to lead them. An Akita can lash out at others, sometimes aggressively, if they don’t have the right structure. Akitas can get into fights with other dogs who have the same sex due to their dominant personalities.

It is not recommended that owners keep two Akitas of the same sex. Some may be surprised to learn that Akitas can be very gentle with children and make great family companions. An Akita should not be left alone with young children. Akitas can be loyal protectors and will give their all to you if they are in the right environment.


” “Small but powerful” is the ideal description for the bold Dachshund. These little dogs have big personalities. These dogs were originally bred to hunt vermin, particularly those living in tunnels. Generations of breeding Dachshunds to hunt has resulted in a modern-day pup with a very high prey drive.

They are known for being territorial and feisty over their loved ones, to whom they are fiercely loyal. This little dog is not to be underestimated. They can be very spunky and can cause problems if they aren’t trained properly.

Final Thoughts

There are many reasons someone might choose to adopt a breed with a history of aggression. You might be looking for a guard dog that will make you feel more secure or provide structure and love to a often stigmatized breed. You might also be reading this list right now in order to learn what breeds not to adopt. It is important to research and make the best decision for your family.

If you are unable to handle a breed known for aggression, don’t adopt it. These breeds can be difficult to handle, but I hope you have learned from this article that they are not evil or bad . There is always some degree of unpredictable behavior with dogs, as with all animals. These special breeds can bring out the best in you if you’re willing to put in the effort.

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