14 Most aggressive Dog Breeds You Need to Know About


5. Bullmastiff – Fearless and Loyal

Bullmastiffs are large, powerful dogs originally bred to guard estates against poachers.

Bullmastiff

Their imposing size and strength can make them intimidating, but they are typically gentle and affectionate toward their families.

However, due to their guarding instincts, Bullmastiffs can be aggressive toward strangers or other animals if not properly trained.

Their large size also means they require strong handlers who can manage their strength and ensure they receive adequate training and socialization.

Size24-27 inches (61-69 cm)
Lifespan7-9 years
Breed PurposeOriginally bred for guarding estates, now used as family protectors and companions.
Scroll to Top