The colossal Mastiff belongs to a canine clan as ancient as civilization itself. A massive, heavy-boned dog of courage and prodigious strength, the Mastiff is docile and dignified but also a formidable protector of those they hold dear.

The Neapolitan Mastiff is a huge, powerful guarder whose astounding appearance has intimidated intruders since the days of ancient Rome. Wary with strangers, the profusely wrinkled Mastino is sweet, placid, and steady among loved ones.

Over the centuries, Mastiffs have maintained a reputation for their irrepressible protective streak. Learn more about the history of this dignified breed.

A centuries-old, rare breed from the Pyrenees Mountains in Spain, this livestock guardian protected flocks from wolves, bears and thieves. Today, while it is still an effective guardian, many families have found the joy of owning the gentle and loving, yet independent, Pyrenean Mastiff.

Watchful, aloof, imposing, and intimidating: The ancient Tibetan Mastiff is the guardian dog supreme. These densely-coated giants are mellow and calm around the house, sweetly devoted to family, and aloof and territorial with strangers.

Majestic. Massive. Muscular. Mastiffs are among some of the oldest breeds known to humans. They feature in legend, as well as recorded history, and were among the first canines to accompany humans on their migrations across the globe. The mastiff family is full of powerful breeds, each with its own unique personality. Mastiffs have been [...]

The Spanish Mastiff is a very intelligent dog, not without beauty, whose expression manifests both these qualities. Rustic, affectionate, kind and noble, he is very determined when facing dangerous animals and in front of strangers, especially when he has the opportunity to defend and protect farms or cattle. In his behaviour, one can see it [...]

The Neapolitan Mastiff (also known as the Neo or Mastino) is a huge, heavy-boned dog with awe-inspiring features. These members of the Working Group are enormous, and the average male weighs 150 pounds, but the bigger the better. There is no other breed that looks quite like the Neo, and they can be distinguished from other [...]

2009:003;010 Collection processed by Norma Rosado-Blake Click for inventory Provenance A gift from the Mastiff Club of America (MCOA). Arrangement The collection is arranged into seven series including: Documents Meeting minutes Publications Miscellaneous Photos Audio/Visual Chapman papers The documents series is organized by order of importance with historical material further organized by date. The Publications [...]

The calm, sensitive, and self-assured Mastiff is an enormous, powerful dog with a long history. These excellent guard dogs from the Working Group also make perfect foot warmers and couch-potato companions. Here are nine interesting Mastiff facts to know. 1. Mastiff-Like Dogs Appeared in Ancient Art There is evidence that Mastiff-like dogs lived in the mountains [...]