Guard dogs have long been at the side of humans, offering protection and loyalty. Among these furry sentinels, certain breeds are renowned not only for their vigilance and bravery but also for their formidable bite force. These powerful canines possess jaw strength that serves as a critical asset in safeguarding their territory and loved ones. In this guide, we explore the seven guard dog breeds known for having the strongest bite force, highlighting their unique qualities and the instincts that make them effective protectors. Discover the unmatched strength and unwavering loyalty of these remarkable guardians.
Dogs hold a special place in our lives, from being affectionate companions to serving as steadfast protectors. When it comes to guard dogs, their natural instincts, sharp senses, and, yes, those incredibly powerful jaws make them exceptional at keeping their pack safe. Some breeds, in particular, are gifted with jaw strength that’s nothing short of awe-inspiring!
It’s no surprise that dogs are often chosen to guard homes and property. Their bite force can be so strong that it’s almost impossible to break their grip once they latch on. In fact, a few breeds have bites so powerful they could easily fracture an arm or even a leg bone. It’s fascinating—and honestly a little intimidating—how much strength they have packed into those jaws.
Below, we’ll walk you through the guard dog breeds known for having the strongest bite force. Let’s dive in and learn about these incredible protectors!
What Is PSI in Dogs?
The bite force is a way to measure the crushing pressure a dog’s jaw muscles can generate when they bite down. It’s measured in pounds per square inch (PSI), which tells us how much force is applied over a specific area.
For context, the average human bite force is around 162 PSI—not much compared to some of our canine companions. The Kangal, which we’ll talk about more in the list below, holds the crown for the strongest bite force among dogs, with a jaw-dropping 700 to 750 PSI.
Factors Influencing Dog Bite Force Strength
While PSI offers a standard way to measure bite strength, a dog’s actual bite force can vary based on more than just breed. Dogs bred for protection, like guard dogs, or with a history of being bred for fighting, tend to have stronger bites than more laid-back breeds.
Skull architecture, including the size and shape of the head, plays a big role, as does overall size, jaw structure, and even temperament. All these factors come together to determine how much bite force an average dog can actually generate.
Top Guard Dog Breeds Known for Their Strongest Jaw Strength
1. Tibetan Mastiff – 550 PSI
The Tibetan Mastiff, with a bite force of 550 PSI, is a powerful breed originally bred to guard livestock and property. While they still excel at this role, they’ve also gained popularity as family companions.
Their strong jaws, combined with high intelligence, can spell trouble if they’re bored or left without enough mental and physical stimulation. Tibetan Mastiffs have a striking, commanding presence but are known for their soft and loving nature. However, their natural guarding instincts mean they often require introductions to strangers by their owners.
With their luxurious coats, vibrant colors, and magnificent tails, these dogs are true head-turners, guaranteed to draw admiration during outings.
Despite their loving and patient demeanor, WebMD notes that they can be stubborn and independent, making consistent training essential to managing their larger-than-life personality.
2. Dogo Argentino – 500 PSI
The Dogo Argentino is an epitome of strength and loyalty, bred specifically for hunting and protection. With roots in Argentina, this breed’s 500 PSI bite force is formidable enough to take down wild boars and even buffalo. Their impressive strength, lightning-fast reactions, and commanding presence make them both admired and respected.
They’re affectionate and playful with their human pack, but their protective instincts make early socialization and training essential. This breed isn’t a good match for inexperienced owners or those who aren’t ready to take on a leadership role.
With their tenacity, intelligence, strength, and keen nose, AKC points out that Dogos excel in various roles, from search and rescue to military and police work, and even as service dogs.
While the Dogo Argentino has a natural tendency for aggression, they aren’t prone to random attacks. With proper training and early socialization, they can become devoted family guardians and reliable companions.
3. Presa Canario – 540 PSI
The Dogo Canario, also known as the Perro de Presa Canario, is a formidable breed with a bite force of 540 PSI. Known for their muscular build, large head, and intimidating presence, these dogs were once used in war before such practices were banned in the 1940s. Their strength and powerful bite can lead to serious injury, making them one of the most physically imposing breeds.
The Presa Canario is a natural guard dog, known for its intelligence, curiosity, and cautious nature around strangers. When raised with proper training and socialization, they form strong bonds with their humans and display a calm, attentive demeanor. Active and energetic, this breed thrives on regular exercise to stay happy and well-balanced.
Highly aggressive by nature, the Dogo Canario is banned in many countries. However, in their homeland, they are valued as exceptional guard dogs and loyal family companions.
They are not suited for every household, as they require a large yard, constant mental stimulation, and an owner who can establish clear leadership. Without firm guidance, they may challenge for dominance.
4. Boerboel – 450 PSI
The Boerboel, also known as the South African Mastiff, is a giant breed with immense power, weighing up to 200 pounds and boasting a bite force of 450 PSI. Originally bred in South Africa to guard farms and homes, the Boerboel remains a fierce and effective protector with a dignified presence.
Despite their origins as aggressive defenders, these dogs are intelligent, friendly, and naturally gentle with children, making them excellent family companions. Boerboels are surprisingly cuddly and can even serve as therapy dogs, though they’re not suitable for every household.
While they can be a bit lazy, regular exercise is crucial to keep them fit and prevent excessive weight gain. With proper care and training, the Boerboel is a loyal, affectionate, and dependable addition to the right home.
5. Fila Brasileiro – Above 400 PSI
The Fila Brasileiro is an undeniably impressive canine, both in size and presence. While their past carries a dark history—not due to the breed itself but to the ways humans have misused them—these dogs were originally bred to protect livestock and track. Despite this, the Fila is celebrated for its loyalty, courage, and deep devotion to its family.
Filas are naturally protective and form strong bonds with their loved ones, displaying a calm and docile demeanor at home. However, their aloofness toward strangers and high prey drive makes them unsuitable for households with cats or small dogs.
Today, the Fila Brasileiro is primarily used as a guard dog, but the breed is banned in the UK due to its potential for aggression without appropriate handling.
Proper training and early socialization are essential to manage their protective instincts. The Fila Brasileiro can be a handful for first-time dog owners or those unfamiliar with powerful breeds. These athletic dogs require daily exercise to stay happy and healthy. Long walks are great, but they also thrive on interactive play in a securely fenced area.
6. Neapolitan Mastiff – 550 PSI
The Neapolitan Mastiff is a large and powerful breed with a history, originally serving as a war dog for the ancient Roman army. Recognizable by their massive heads, thick necks, and distinctive wrinkles and folds, these imposing dogs pack a serious bite force of around 550 PSI. Their formidable appearance and strength make them natural protectors and excellent watchdogs.
Despite their intimidating looks and occasional aggression toward strangers or other dogs, Neapolitan Mastiffs are incredibly loving and affectionate with their families.
These gentle giants are more likely to drown you in drool than ever resort to biting, but their protective instincts mean they won’t hesitate to act if they feel their loved ones are in danger.
Neapolitan Mastiffs are a low-energy breed that only requires moderate daily exercise. A leisurely walk is perfect for them, but don’t expect them to be your jogging partner—they prefer to take things slow.
7. Kangal – 743 PSI
Also known as the Anatolian Shepherd, this impressive breed was originally developed in Turkey to work with and protect livestock. Its strong, well-developed jaw, combined with its head’s unique structure, allows this breed to deliver forceful, effective bites when defending its flock.
With a bite force of 743 PSI, the Kangal is renowned as one of the strongest and most loyal guard dogs in the world. Despite their size and power, they are surprisingly gentle with small children, though they are best suited for experienced dog owners who can provide plenty of space for them to thrive.
Kangals are incredibly fast, reaching speeds of up to 34 miles per hour, and have the courage to face off against large predators, including bears. However, they’re not typically recommended for households with other pets, as their guarding instincts can lead to conflicts.
Yet, despite their formidable abilities, Kangals are famously gentle and affectionate with their families, making them as loyal as they are powerful.
Tips to Prevent Dog Attacks
Understanding dog behavior is crucial for staying safe around dogs. By staying mindful and proactive, you can ensure safe and positive interactions with dogs, whether they’re yours or someone else’s. Here are some simple ways to prevent incidents:
- Observe Body Language: Watch for warning signs like raised fur, growling, bared teeth, stiff posture, or intense staring. If you see these, stay calm and give the dog space.
- Respect Boundaries: Never invade a dog’s personal space, especially if it’s unfamiliar. Teach kids to always ask the owner’s permission before petting a dog.
- Approach Cautiously: When meeting a new dog, stay calm and let them come to you. Offer a closed hand for sniffing and avoid sudden movements or loud noises that might scare them.
- Stay Calm in Threatening Situations: If a dog acts aggressively, avoid direct eye contact, sudden moves, or yelling. Back away slowly and maintain a calm demeanor.
- Train Your Dog: Proper training, socialization, and exposure to new environments and people help reduce aggressive tendencies in dogs. Start early for the best results.
- Supervise Your Dog: Watch for signs of stress or discomfort in your own dog. Address these behaviors early and seek help from a professional if needed.
- Be a Responsible Owner: Keep your dog on a leash in public, provide regular exercise, and ensure their basic needs are met. A happy and well-trained dog is less likely to become aggressive.
Conclusion
Large dog breeds come in many forms, from mastiff breeds like the Cane Corso 700 psi powerful bite force to herding dogs like German Shepherd dogs, which are not only excellent guard dogs but also serve as loyal police dogs. The most popular ones, such as American Pit Bull Terriers, have a reputation as fighting dogs or dangerous dogs. Likewise, the American bulldog bite force comes at 305 psi but they can become great family pets when properly trained and socialized from an early age.
Even breeds with the strongest dog bite force, like the Turkish Kangal or the Doberman Pinscher, prove to be loyal and protective companions under the right care. However, owning a large breed or a powerful breed of dog comes with responsibilities. Their powerful nature, combined with their size, means there’s potential for biting incidents if aggressive behavior isn’t managed.
On the flip side, these four-legged friends also require significant time, training, and financial commitment, from handling their medical bills to addressing the needs of their domesticated dog lifestyle. Ensuring you’re guard dog is properly trained makes all the difference in raising an intelligent breed into a loving, reliable companion.
In conclusion, selecting a guard dog with a strong bite force requires careful consideration of various breeds known for their powerful jaws. Breeds such as the Kangal, Cane Corso, and Dogue de Bordeaux are renowned for their formidable bite force, serving both as protective companions and deterrents to potential threats. These dogs, when properly trained and socialized, can provide exceptional security, loyalty, and reliability. However, it’s crucial to remember that a strong bite force also necessitates responsible ownership to ensure the safety and well-being of both the dog and the community. Proper training and care are essential to harness their protective instincts effectively.