Mastiffs

The Rottweiler (, , ) is a breed of domestic mastiff type dog, regarded as medium-to-large or large. The dogs are known in German as , meaning Rottweil butchers' dogs, because their main use was to herd livestock and pull carts laden with butchered meat to market. This continued until the mid-19th century when railways replaced droving. Although still used to herd stock in many parts of the world, Rottweilers are now also used as search and rescue dogs, guard dogs, and police dogs.

German dog breed

German dog breed

The Bullmastiff is an English breed of dog of mastiff type and large size, with a solid build and a short muzzle. It was developed as a guard dog in the nineteenth century by cross-breeding the English Mastiff with the now-extinct Old English Bulldog. It was recognised as a breed by The Kennel Club in 1924.

Italian dog breed

English dog breed

Italian dog breed

French dog breed

Brazilian breed of dog

Spanish breed of dog

The Broholmer, also called the Danish Mastiff, is a large mastiff breed of dog from Denmark, recognized by the Danish Kennel Club and the Fédération Cynologique Internationale. It has been employed as a guard dog in the homes of the wealthy. The breed's numbers dwindled severely during World War II, but the dog made a successful return in the 1970s.

The Boerboel () is a South African breed of large dog of mastiff type, used as a family guard dog. It is large, with a short coat, strong bone structure and well-developed muscles.

thumb|260px|The Mastiff by Philip Reinagle, 1805 A mastiff is a large and powerful type of dog. Mastiffs are among the largest dogs, and typically have a short coat, a long low-set tail and large feet; the skull is large and bulky, the muzzle broad and short (brachycephalic) and the ears drooping and pendant-shaped. European and Asian records dating back 3,000 years show dogs of the mastiff type. Mastiffs have historically been guard dogs, protecting homes and property, although throughout history they have been used as hunting dogs, war dogs and for blood sports, such as dog fighting, bull-ba

Uruguayan breed of molosser type dog

American bulldog breed

dog breed

dog breed

pet dog of Argentine economist and politician Javier Milei

dog breed