The 9 World's Biggest Dog Breeds

Mastiffs, known for their imposing size and gentle demeanor, are one of the largest dog breeds in the world. Originally bred for guarding and protection, these dogs can weigh up to 230 pounds or more and have a powerful build.


The Boerboel, originating from South Africa, is a large and muscular breed bred for guarding and protection. With a sturdy frame and strong build, Boerboels can weigh over 200 pounds, making them formidable protectors.


The Tosa, also known as Tosa Inu, is a Japanese breed prized for its imposing size and strength. Historically used in dog fighting, Tosas have a muscular build and fearless nature, making them formidable opponents.


Saint Bernards, famous for their role as rescue dogs in the Swiss Alps, are massive yet gentle giants. With thick fur and a weight of up to 180 pounds or more, these dogs are well-equipped for cold climates and rescue missions.

Saint Bernard

Great Danes hold the title for the tallest dog breed in the world. Despite their elegant stature and height of over 30 inches at the shoulder, Great Danes are known for their friendly and affectionate nature, making them excellent family pets.

Great Dane

Originating from Germany, Leonbergers are giant breeds known for their lion-like appearance and gentle temperament. With a strong and muscular build, as well as a thick, water-resistant coat, Leonbergers excel as companions and working dogs.


Neapolitan Mastiffs are characterized by their loose, wrinkled skin and massive size. These dogs, weighing over 150 pounds, are known for their distinctive appearance and protective instincts, making them formidable guard dogs.

Neapolitan Mastiff

Newfoundlands are renowned for their strength and swimming abilities. With a thick, water-repellent coat and a weight of over 150 pounds, these dogs excel in water rescue and are known for their gentle and loyal nature.


Originating from Turkey, Anatolian Shepherds are large and powerful livestock guardian dogs. With a weight of over 150 pounds and strong protective instincts, Anatolian Shepherds are valued for their ability to protect livestock from predators.

Anatolian Shepherd