✓ Verified · Reviewed datavaries by registry
English Mastiff
Working breed from England
Breed overview
Reviewed · Database recordAbout the English Mastiff
The English Mastiff is a giant working breed from England, known for its massive size and short coat in fawn, apricot, or brindle. It is described as gentle, loyal, protective, calm, and courageous. The breed's energy level is low (2/5), trainability moderate (3/5), and grooming needs low (2/5) with moderate shedding (3/5). It scores high for child suitability (4/5) and moderate for dog compatibility (3/5), but low for apartment suitability (2/5). Adult weight is estimated at 73–104 kg for both sexes, height 76–86 cm, and lifespan 6–10 years. These figures are modelled estimates, not verified measurements.
Quick facts
English Mastiff at a glance
Sizegiant
Breed groupWorking
OriginEngland
Lifespan6–10 years
Male weight73–104 kilogram
Female weight73–104 kilogram
Male height76–86 centimetre
Female height76–86 centimetre
Origin and history
Where the breed comes from
The English Mastiff is an ancient breed known in Britain for over 2,000 years, according to one source. It is believed to descend from Roman Molossian war dogs. Historically, the breed was used as an estate guardian, war dog, and big-game hunter. The modern breed was refined in medieval England and was reportedly saved from extinction after World War II. However, the exact timeline and details of its early history are not fully documented, and some claims may be based on tradition rather than verified records. The breed's origins are firmly in England, and it is classified in the Working group by some registries, though recognition status varies by registry.
Physical characteristics
Structured dataSize, build and coat
Female
73–104 kilogramAdult weight76–86 centimetreAdult heightCoat typesShortCoat colorsFawn, Apricot, BrindleRecognitionvaries by registryData methodai assisted draft
Temperament
Typical breed tendencies
Gentleloyalprotectivecalmcourageous
Breed tendencies are general guidance. Individual behavior depends on genetics, socialization, training, health and environment.
Exercise, training and maintenance
1–5 methodologyDaily care profile
Lower exercise demand
Moderate compared with other breeds
Lower coat-maintenance demand
Moderate compared with other breeds
Family suitability
Home and household fit
Supervise every dog–child interaction.
Introductions and socialization still matter.
Exercise, enrichment and noise tolerance affect fit.
Climate suitability
Modelled tendency · low confidence
Modelled tendency · low confidence
Modelled tendency · low confidence
A general morphology-based tendency. Individual dogs still require shade, shelter, water, acclimation and weather-appropriate activity. Method: climate-morphology-v1.
Health overview
Veterinary sources requiredHealth considerations
No English Mastiff-specific screening programme or peer-reviewed disorder-prevalence study is currently attached to this profile. This is not evidence that the breed has no health risks. Owners should use routine preventive veterinary care and discuss screening appropriate to the individual dog's history, examination and family line.
Veterinary disclaimer: This profile is educational and does not replace examination, diagnosis or treatment by a veterinarian.
Feeding overview
Nutrition and feeding
Research in progress
Reviewed feeding guidance will appear after an approved source is imported and editorially reviewed.
Decision support
Potential advantages and challenges
Potential advantages
- Can be a strong family match when socialized and supervised.Supported by childSuitability: 4
- Commonly described as loyal.Supported by temperaments.loyal: true
Potential challenges
Similar breeds
Continue comparing
Related comparisons
Compare this breed
Growth chart
English Mastiff puppy growth
Modeled estimates
Open interactive chart From puppy weight to adult size
Compare male and female growth, check weight by age and estimate mature size.
Adult male weight73–104 kilogramAdult female weight73–104 kilogramGrowth modeladult-range-size-model-v1
Preview only. Open the complete chart to adjust age, current weight and measurement units.
Frequently asked questions
Common questions
What is the size and lifespan of an English Mastiff?
The English Mastiff is a giant breed. Estimated adult weight ranges from 73 to 104 kg for both males and females, and height from 76 to 86 cm. Estimated lifespan is 6 to 10 years. These are modelled estimates, not verified measurements.
What is the temperament of an English Mastiff?
The breed is described as gentle, loyal, protective, calm, and courageous. However, individual dogs may vary, and not every Mastiff will display all these traits consistently.
How much exercise does an English Mastiff need?
The English Mastiff has a low energy level (rated 2 out of 5). It requires moderate exercise, but specific needs can vary by individual. Due to its giant size, avoid overexertion, especially in young dogs.
What are the grooming requirements?
Grooming needs are low (rated 2 out of 5) due to the short coat. Shedding is moderate (rated 3 out of 5). Regular brushing can help manage loose hair.
Is the English Mastiff good with children and other dogs?
Child suitability is rated high (4 out of 5), but supervision is always recommended due to the breed's size. Dog compatibility is moderate (3 out of 5); some individuals may be less tolerant of other dogs.
Can an English Mastiff live in an apartment?
Apartment suitability is low (rated 2 out of 5) because of the breed's giant size. A home with space is generally more appropriate.
Where does the English Mastiff originate?
The breed originates from England. It is an ancient breed known in Britain for over 2,000 years, with roots possibly tracing back to Roman Molossian war dogs, but exact origins are not fully verified.
Data transparency
✓ Published · VerifiedSources and review status
APIThe Dog API ↗The Dog API Terms of Service (effective 2023-07-01)
VETERINARY SOURCEWSAVA Global Nutrition Guidelines and Toolkit ↗Copyright; factual citation and original summary only
Image source: The Dog API. Last reviewed 7/20/2026.