Bullmastiff
Powerful yet gentle, this loyal guardian offers steadfast protection and warmth to families. Calm under pressure, Bullmastiffs excel as both devoted companions and vigilant watchdogs.
Breed Characteristics
Average sizes and life expectancy of the breed.
HEIGHT
64–69 cm (male)
61–66 cm (female)
WEIGHT
50–59 kg (male)
41–50 kg (female)
LIFE EXPECTANCY
7–9 years
Bullmastiff: Breed snapshot
Everything you need to know about this beloved breed at a glance
Key Breed Characteristics
Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Carnivora
Family
Canidae
Genus
Canis
Species
Canis lupus familiaris
Diet
Omnivore
"A Bullmastiff isn't just a pet — they're a loyal companion, a playful friend, and a loving family member all in one."
Temperament & personality
Understanding Bullmastiff's temperament is key to knowing if they're the right match for your lifestyle.
Personality Overview
The Bullmastiff is known for its calm, loyal, and protective nature, displaying strong devotion to family while remaining gentle and reserved with those it trusts.
Key Personality Traits
Gentle and affectionate with family and friends
Learns commands quickly, responds well to training
Generally calm, low activity needs indoors
Enjoys play but not overly excitable
Adjusts well to routine and environment changes
Strengths
- Loyal and protective family companion
- Calm and steady indoor demeanor
- Strong natural guarding instincts
- Tolerant and patient with children
- Low grooming needs due to short coat
Challenges
- Can be stubborn during training sessions
- Prone to drooling and snoring
- Needs early socialization with strangers
- Sensitive to heat and humidity
- Susceptible to joint and hip issues
Protect your Bullmastiff
Bullmastiff can develop hip dysplasia and elbow dysplasia. PetSecur covers unexpected vet costs with quick payouts and personal service.
Intelligence & exercise needs
Bullmastiffs are both highly intelligent and energetic, requiring mental and physical stimulation to thrive.
🧠 Intelligence & training
Trainability
Learns with consistency
Overall rating
Bullmastiffs are intelligent and can learn basic commands quickly, but they may show independent or stubborn tendencies, requiring consistent, patient training and early socialization for best results.
Trainable Tasks:
🏃 Exercise & energy levels
Daily Exercise
45–60 minutes daily
recommended per day
This breed has moderate exercise needs, benefiting from daily walks and some playtime. Mental stimulation and structured activities help prevent boredom, but the Bullmastiff is generally not highly energetic.
Recommended Activities:
Is this breed right for you?
Bullmastiffs are versatile dogs that adapt well to many lifestyles, but they're not the perfect match for everyone. Here's a quick guide to help you determine if a Bullmastiff would fit well in your home.
First-time Owner
Bullmastiffs need confident handling and early training for balanced behavior
Apartment Living
Their size fits apartments but they need daily outdoor walks
Active Lifestyle
Bullmastiffs prefer moderate exercise over vigorous daily activity
Kids
Gentle and protective with children when socialized early
Multiple Pets
Some Bullmastiffs may be territorial with other pets
Being Left Alone
They dislike being left alone and may develop separation anxiety
Breed comparisons
Wondering how Bullmastiffs compare to other popular breeds? Check out our detailed comparison pages.
Frequently Asked Questions about Bullmastiff
Find answers to the most commonly asked questions about this breed
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