The English Mastiff, the largest Mastiff breed at 230 pounds, is friendly and easygoing. They are faithful and committed.
This intelligent breed, known as the Argentine Dogo, is playful, easy to train, and a faithful guardian of its home and family.
Bullmastiffs are bold, loyal, clever, and lovable canines bred in England in the 1860s from Old English Mastiffs and bulldogs.
The Neapolitan Mastiff has tawny, mahogany, brindle, black, and blue coats and is loyal and attentive, making it a good guard dog.
This breed, which can grow to be up to 30 inches tall, is recognized for being sociable and trustworthy, as well as being good with children.
Not unexpected given their imposing height and stature as guard dogs as well as combat dogs, confidently storming enemy lines.
Originally known as the Boer Mastiff, it was capable of going toe-to-toe with a leopard and was frequently used as farmstead security.
Despite its naturally protective character, the Pyrenean Mastiff is also quite kind, particularly to those it protects, whether human or not.