

The Mastiff is a massive, extremely good-natured giant—a mastiff-type silent guardian that protects simply through its sheer presence, without ever needing to bark nervously. Its composure is legendary, yet it hides a deeply rooted, vigilant core.
How the health grade is calculated
Sources for required breeding screenings. Club für Molosser e.V. · Club für Molosser e.V.
Self-check
Answer 6 quick questions about your everyday life and see how well the Mastiff fits you — including an honest cost estimate per month, per year, and across the dog's lifetime.
At a glance
The essentials — key facts, traits, and health priorities — before you dive deeper.
Lifespan
6–10 yrs
Shoulder height
70–86 cm
Weight
54–100 kg
Practical
Temperament
Daily life
What matters most
Especially with a Mastiff, choosing the right breeder is the single most important decision you'll make. Serious breeders consistently test the parents for inherited conditions, prioritize healthy early socialization, and stay accountable long after handover. A cheap puppy without health screening tends to become the most expensive dog later on.
See HonestDog breeder standards →Colors & coat
The coat colors that occur in the Mastiff — including which ones fall outside the breed standard and which carry genetic risk.
Eye colors
Coat type
The real vibes check
A Mastiff is like a warm, soft wall in the living room—most of the time he sleeps deeply, soundly, and preferably right in the middle of the path. But if he senses his family is threatened, his old guard dog hardware awakens in a split second. You aren't getting a dog that follows orders, but a loyal bodyguard who decides for himself when he needs to intervene.
The Mastiff, also known as the English Mastiff, is a breed of dog of impressive size and stature. Its powerful head, broad chest and strong muscles create an imposing impression. Despite his size, he moves with amazing grace and ease. Its short, dense fur has a pleasant texture and can come in a variety of colors. This breed does not differentiate between performance and show lines, although it always depends on the individual dog and its characteristics. The Mastiff belongs to FCI Group 2, Section 2.1, which includes molossoid, mastiff-like dogs. These dogs are known for their size and strength as well as their alertness and courage.
Despite its impressive size, the Mastiff is a gentle giant. His nature is characterized by calm and serenity. He is very people-oriented and forms a close bond with his family. He is often reserved towards strangers at first, but without being aggressive. His alertness and natural distrust of strangers make him a good watchdog, but he never attacks without a reason. Although the Mastiff is a rather calm breed, he still has his instinct to play and enjoys shared activities with his family. However, with his moderate energy level, he is not a hyperactive dog, but also appreciates quiet phases and cozy hours on the sofa. The Mastiff likes to learn and proves to be quite intelligent. He wants to please his people and is willing to learn to do so. However, he can also be a bit stubborn at times, especially when he doesn't understand the purpose of a task. A loving and consistent training is therefore particularly important. Mastiffs generally get along well with other dogs and pets. They are tolerant and patient, which makes them good companions for children. However, their size and power require careful handling, especially when around small children and the elderly. Mastiffs are not prone to strong hunting or prey-catching behavior. They are usually quiet and reserved and do not show the typical behavior of hunting dogs. However, you should always keep in mind that a Mastiff is also a dog and therefore has a certain hunting instinct. Overall, the Mastiff is a wonderful family dog for people who are willing to invest the time and energy into training and caring for such a large and strong animal. With his love and loyalty he will reward any owner who is willing to offer him a loving and safe home.
| Watchfulness Strong territorial instinct — may actively confront intruders. | Very high |
| Openness to Strangers Neither pushily friendly nor suspicious. | Neutral |
| Hunting or Herding Drive Mild interest in movement and small animals — easily managed. | Low |
Fun Fact!
Although Mastiffs are known as one of the largest dog breeds, they are also known for their gentle and loving nature and are often referred to as "gentle giants."
Mastiffs are generally calm dogs with a high stimulus threshold. They can be alert and territorial, as well as motivated to hunt. Like many large breeds, musculoskeletal problems are common in Mastiffs. In addition, a shortened life expectancy must be expected.
Despite their size, Mastiffs can live well in the city provided they get enough exercise and mental stimulation. They are calm and adaptable dogs that can live in an apartment as long as they are walked regularly. However, since they require a lot of space, they are best kept in a house with a garden. Mastiffs tend to get along well with children and other pets, including cats. They are tolerant and patient, which makes them good companions for children. However, their size and power require careful handling, especially when around small children.
Loves family life and thrives in a group.
Extraordinarily patient and loving — a true family dog.
Actively enjoys the company of other dogs.
Can manage in the city, but only with very active owners.
Owning a dog is a privilege, but it's also a real responsibility. Before you bring one into your life, be honest with yourself about the commitment it takes.
Mastiffs are intelligent and eager to learn, but they can also be a little stubborn. Positive and patient training is most effective. They respond well to rewards and praise and love to please their people. They can also be trained well in various dog sports and activities, including obedience, agility, and even weight pulling. However, it is important that training is age and size appropriate to avoid injury. Mastiffs are naturally alert and protective, and their training should encourage these qualities in a positive and controlled manner. It is important to teach them to differentiate between friend and foe to avoid false alarms and unwanted behavior. It is also important to socialize Mastiffs early on and teach them to be comfortable in different situations and with different people and animals.
Mastiffs require a balanced diet tailored to their specific needs as a large dog breed. They need high-quality protein to support their muscle development and healthy fats for energy. It is important to carefully control the amount of feeding to avoid excess weight, which can put additional strain on the joints. When it comes to grooming, Mastiffs require regular brushing to remove dead hair and keep skin healthy. They have an undercoat and can shed a lot, especially when they are shedding their fur. Grooming a Mastiff should also include regular teeth cleanings and nail trims. The ears should also be checked and cleaned to prevent infection.
| Care Level Minimal effort — occasional brushing and bathing. | Low-maintenance |
| Exercise Needs Needs 1–2 hours of real exercise daily. | Active |
| Shedding Regular shedding — dog hair on clothes is now normal. | Moderate |
| Trainability Willing to learn with clear rules and regular training. | Balanced |
Our experts are still reviewing this information. Spotted something wrong? Email us at info@honestdog.de.
Elevated risks
Health grade
In the heavy Mastiff, hip dysplasia (HD) and elbow dysplasia (ED) particularly place strain on the musculoskeletal system, while there are also additional risks of heart diseases such as pulmonic stenosis (PS) and cystinuria. The Club für Molosser e.V. mandates for breeding radiographic examinations for HD (maximum HD C, mated only with A or B) and ED (maximum ED 2, mated only with ED 0) as well as cardiac certification. A responsible breeder additionally tests the parent animals for cystinuria and eye diseases such as cataracts or progressive retinal atrophy. Before buying a puppy, have the official findings for HD, ED shown to you, as well as proof that in the case of cystinuria, carrier animals were exclusively mated with clear partners.
Grade is relative to other breeds — AI-assisted and editorially reviewed.
Methodology and data: HonestDog Dog Breed Health Report 2026
What matters most for this breed
Tap any item to see details.
During the growth phase, you must pay extreme attention to weight and joint-friendly exercise, and honestly factor in a very high veterinary budget for these massive dogs.
Responsible breeders mandatorily test parent animals for hip dysplasia (HD), elbow dysplasia (ED), and heart disease, and voluntarily screen for cystinuria and pulmonic stenosis (PS).
Note: This health overview is AI-assisted and editorially reviewed. It is for orientation only and does not replace veterinary advice.
What matters most for this breed — what's common, how much it affects the dog's life, and how to protect yourself as a buyer.
Tap a body region to see the inherited conditions linked to it.
The three most important risks
Pick a region on the map to explore other areas.
Tier 1 reflects the tests Club für Molosser e.V. actually mandates. Tiers 2 and 3 show how responsible breeders go beyond.
Club standard. Club für Molosser e.V. requires these tests for breeding approval. Ask any reputable breeder for the results.
No entries in this tier.
Note: This health overview is AI-assisted and editorially reviewed. It is for orientation only and does not replace veterinary advice.
A Mastiff costs around ~€250 per month (€130 – €500, depending on your setup). The first year adds up to roughly ~€6,870 including purchase, equipment and puppy school; across the dog's life (8 years) it comes to about ~€28,130.
With surgery cover, running costs come to about ~€270 per month — in return, your share of a major operation drops from several thousand euros to around 20 percent.
Per month
~€250
In the first year
~€6,870
Across the dog's life
~€28,130
Estimated purchase price from a breeder: €2,000 – €4,000
Estimate at a mid-range setup (suburban, dry food, 1–2 hours of daily exercise), average German prices, as of July 2026.
HonestDog Concierge
We currently have no breeders for this breed who have passed our verification. Create your short buyer profile: we'll set up your search alert, review a possible source and email you within 28 days.
In some German federal states, special regulations apply to Mastiff as a listed or dangerous dog. Depending on your location, this may include a temperament test, permit or other official requirements, leash and muzzle obligations, and higher insurance or tax costs. Always check with your local authorities.
Full guide to restricted-breed ownership in Germany
Illustrative image
Illustrative image
Illustrative imageThe mastiff's roots can be traced back to ancient Britain. The Romans were already impressed by the strength and bravery of these dogs and brought some examples to Rome, where they were used as war and fighting dogs. In the Middle Ages, Mastiffs were kept in England as guard and hunting dogs. They were supposed to protect houses and farms and were also used to hunt predators such as wolves and bears. Today's Mastiff as we know it was primarily bred in the 19th century. The breed was recognized by the English Kennel Club in 1885 and by the American Kennel Club in 1888. Since then, the Mastiff has developed into a popular family dog that impresses with both its impressive appearance and its friendly and gentle nature.
The Mastiff was used as a guard and protection dog, known for its size and imposing appearance.
England
Antike
Many owners describe life with a Mastiff as surprisingly calm, but they keep stressing the sheer bulk of the breed in daily life. Indoors, adult dogs usually act like giant, comfy sofa cushions that seek close contact and like to lean their massive weight against their people without a second thought. In family life they show great patience and calm with children. Even so, experienced owners regularly point out that the sheer mass is a hazard: a careless turn or an excited greeting can easily knock smaller children over.
A constant topic in owner reports is the practical logistics of such a heavyweight. From a drool-proof household with a towel always at hand, to finding a big enough car trunk, to the question of how to move an injured dog weighing 70 to over 90 kilos, daily life calls for real foresight. On top of that, because the breed is classed as a restricted breed in some German states, it can come with bureaucratic requirements such as temperament tests and higher dog taxes, which many owners urge people to look into before getting one.
Sources:martinruetter.comnaturalis-barf.detierisch-verliebt.dezoomalia.deeinfachtierisch.de
In owner accounts of training, the Mastiff is often described as a sensitive thinker on which pressure or harshness is completely wasted. Owners agree that the breed reacts to raised voices with insecurity or stubborn refusal. At the same time, from the first year on, physical strength alone is no longer enough to hold the dog, which is why early, consistent loose-leash walking and impulse control have to be the top priority from the start.
A certain leisureliness in following commands is typical of the Mastiff: many owners describe, with a wink, how the dog first weighs a request and wants to understand the point before it responds. Classic blind obedience or constant repetition is not its thing. Another central topic is early exposure to the wider world: because of its inborn, silent protective instinct and its initial skepticism toward strangers, owners describe how important it is to introduce Mastiffs calmly to all kinds of everyday situations and unfamiliar stimuli from an early age, so the imposing guardian always stays manageable.
Sources:martinruetter.comnaturalis-barf.deeinfachtierisch.depedigree.dewirliebenhunter.de
In the Mastiff community, health is a topic marked by deep worry and sobering experiences. Owners keep reporting the downsides of the breed's extreme build. During puppyhood and adolescence, rapid growth calls for strict care: climbing stairs, wild play, and overly long walks are off-limits so the joints and bones aren't permanently damaged. Despite all precautions, orthopedic conditions such as hip and elbow dysplasia or early-onset arthritis are among the problems owners mention most often.
Owners also regularly discuss caring for the typical head and facial folds, which have to be kept clean to prevent inflammation, as well as the sensitive eye area. Besides the constant watchfulness for life-threatening bloat, the comparatively short life expectancy is an emotionally heavy point that comes up in many reports. Owners therefore almost unanimously advise prospective buyers to buy only from breeders who breed strictly for longevity and soundness rather than sheer mass.
Sources:martinruetter.compedigree.defressnapf.ludogvers.denaturalis-barf.de
Paraphrased from real owner reports · translated from German
The Mastiff is an adaptable dog that adjusts well to various lifestyles. Research the temperament, grooming needs, and space requirements before deciding.
The average life expectancy of a Mastiff is 6-10 years. With proper care and regular vet visits, your dog can live a long, healthy life.
Mastiff grooming requirements include regular brushing, nail trimming, and dental care. HonestDog provides detailed grooming tips for every breed.
The Mastiff can be a great family dog. Proper training and socialization are key. HonestDog provides family suitability information for every breed.
The Mastiff comes in these colors: Fawn, Apricot, Brindle.
Dog leash laws Baden-Württemberg: where and when dogs must be leashed, key exceptions, and municipal regulations as of October 2026.
Which breeds are banned in Baden-Württemberg? Discover the PolVOgH list, temperament tests, exemptions, ownership permits, and dog tax rates for 2026.
Which breeds are restricted in Hamburg? Learn about Categories 1 and 2, keeping permits, temperament tests, and dog tax up to €600.
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