Dogs are not born dangerous; yes, they may have some factors that affect their attitude.
Some dogs might be too bold, which can be seen in their personality and some other dogs are aggressive. However, it does mean that these dogs cannot be handled and trained well.
When these dogs go to irresponsible and negligent owners, they show their worst traits and without proper training, they end up being aggressive and harming people around them, which makes them dangerous.
1. American Staffordshire Terrier

They look a lot alike; Pitbulls and people confuse them with Pitbulls, but American Staffordshire Terriers are a lot friendlier and more courageous.
They are strong and aggressive too, which is why if not trained right, they might become dangerous; otherwise, they are pretty smart not to harm people.
2. German Shepherd

German Shepherds are known for their intelligence and smartness and there’s no doubt they are strong because they have a long history of working in law enforcement and militaries.
Their attacks can be deadly but they act as they are taught. So, as working dogs, they are pretty dangerous but as domestic dogs, they can be calm as you train them.
3. Tosa Inu

Generally, Tosa Inus are calm but there is no doubt that these buddies are pretty protective about their owners and have the power to knock anyone down.
They were originally bred as fighting dogs in Japan so you know how dangerous they could be if you trained them by a professional or experienced person.
4. Belgian Malinois

Belgian Malinois are gorgeous yet rough and tough dogs that are highly energetic and powerful. They are smart and will surprise you with their intelligence.
However, due to their high energy, they need to be engaged with things and certain jobs; otherwise, they can be destructive.
5. Rhodesian Ridgeback

These big dogs might be hard to handle because of their independent nature and people couldn’t dominate them or control their behavior many times if they are not experienced dog owners.
Rhodesian Ridgebacks are pretty intelligent and powerful but because of their independent nature and strong will, they might be stubborn.
6. Bullmastiff

Bullmastiffs are perfect for protecting your home. They are known for protecting nature and being intelligent, fearless, and loyal.
However, even though they would do anything for their family, they might end up hurting others and they don’t like guests so be careful and train them well from childhood to prevent any mishap.
7. Perro de Presa Canario

Perro de Presa Canario is a large dog. They might not look dangerous but their personality is enough to scare people away.
They are strong, intelligent, confident, and protective enough to fight off any threat.
They have a guarding nature but might lead to aggressive behavior without proper training.
8. Boxer

Boxers look adorable and there’s no doubt they are playful but when they are angry, they can be dangerous.
Their exuberance can lead to accidental injuries so train them well with commands and make sure they follow every command of yours so that future mishaps can be avoided.
9. Wolfdog (Wolf Hybrid)

Dogs have a hunter origin and they are somewhat similar to wolves. However, wolfdogs that are wolf hybrids are intelligent and independent but their behavior is unpredictable because of their wolf instincts.
So, training and handling them could be tough and you have to be mindful.
10. Doberman Pinscher

Doberman Pinschers tend to be guarding dogs, and they have been acing the role for ages.
Pinscher in German refers to the attack and bite prey, which is their instinct when they are in danger. They are always on alert and have a stiff posture.
11. Pit Bull Terrier

Pit Bull Terriers have been infamous for dogfighting because they were purposefully bred for dogfighting.
They are strong and determined and no doubt loyal but their inherent fighting attitude cannot be neglected.
Because of many life-threatening situations because of their attack, it has caused many countries to ban them.
12. Rottweiler

Rottweilers have beautiful eyes that can make your heart melt. However, even though Rottweilers look cute and the sweetest dogs, their size and strength can be a risk if improperly trained or aggressive.
They are confident and protective so they can be turned dangerous if they feel threatened.
13. American Bulldog

In many countries, bulldogs are banned because of their dangerous and attacking nature.
They have a muscular personality and look quite sturdy. American Bulldogs are affectionate but their strength can be problematic if they are not trained right.
14. Siberian Husky

Siberian Huskies are generally quite friendly and playful but they can be dangerous as they are pretty protective about their owners.
Also, they might get irritated around children, which can turn into a dangerous situation but again, training would help them calm down and be patient.
15. Cane Corso

Cane Corsos are big dogs that are intelligent, assertive, and pretty loyal to their owners.
They need experienced owners because their loyalty can be aggressive, which can lead to unwanted situations and mishaps.
16. Alaskan Malamute

Alaskan Malamutes are like Siberian Huskies. They look kind of the same with their fluffy, furry appearance and they have similar friendly behavior.
However, Alaskan Malamutes have a high prey drive and a dominant nature, which can lead to challenges.
17. Dogo Argentino

Dogo Argentinos are gorgeously muscular dogs that have a big appearance. They are obviously brave and no doubt loyal.
They were originally bred for hunting large game so now if you are thinking of domesticating them, they need a good, experienced trainer to avoid aggressive and dangerous deeds.
18. Boerboel

Boerboels not only look powerful but also protective and loyal. They are perfect for big-space living and family protection, as they have a strong guarding instinct.
However, these guarding instincts have led to many troublesome and dangerous situations so be mindful while training them, as they need experienced trainers.
19. Akita

Akitas have a mane-like coating and look dangerously gorgeous with white and partly burnt golden furs.
They are independent, protective, and well-dignified, and because they can be wary of strangers, they can get easily worked up against their attack.
With proper socialization, these furry buddies can be the best, most affectionate, and lovable dogs.
