Massive and awe inspiring, the large and powerful Neapolitan Mastiff (or Neo, as it’s called by its many admirers) is the 40th most popular dog breed registered with the AKC in the United States. Despite its intimidating appearance, this big heavy dog usually maintains a peaceful, calm and gentle temperament, unless provoked. But if the dog’s owners are ever in a whiff of trouble, the Neapolitan Mastiff can transform into one of the world’s fiercest guard dogs at a moment’s notice. Often its vicious looks alone are all it takes to scare off an intruder.

History and Origin

The roots of the Neapolitan Mastiff can be traced to the giant war dogs of Egypt, Mesopotamia and Asia. Alexander the Great was said to have created the great forefather of the breed – the Molossus. When Ancient Romans invaded England, they gained access to the larger mastiff dogs there; today’s Neapolitan Mastiff is considered a mix of the ancient British Mastiff and the indigenous Roman breed. The loose skin, a hallmark of this breed, was originally intended to make it difficult for combat opponents to latch on. Bred for use in war and in bloody Roman arena entertainments, today the Neo has a well-deserved reputation as a fierce warrior and guard dog. This breed has been employed as a police dog, army dog, and all purpose guard dog for many centuries in Italyand throughout Europe.

General Information

Don’t let the Neapolitan Mastiff’s droopy face and bulky body fool you. This is a very intelligent dog, and every ounce of this animal suggests power. You’ll find this pet to be very loyal, serious and affectionate with its favorite members of the family. Always give your Neo plenty of personal attention.

Typically good with well-behaved kids if socialized to them at an early age, this dog’s large body can nevertheless knock them over unintentionally. While the Neo is often peaceful with other animals, it will probably chase cats unless it has been raised with them from birth. Also, be aware that this breed will likely be uncomfortable and aggressive with adult dogs of the same sex. The Neo can be a bit willful and stubborn, although it is by no means a difficult or dangerous-tempered dog. This is a pet that needs a strong, patient and confident owner who is willing to invest in thorough socialization and obedience training from puppyhood onward. A calm and caring owner who shows natural leadership ability will achieve the best results.

It’s important to limit the Neo puppy’s amount of exercise and play, making sure that it never gets overtired, and avoid roughhousing to ensure that all its energy is available to make healthy bones and muscles. By contrast, the adult Neo needs plenty of exercise; it should get a minimum of 2 long walks each day.The Neo easy to groom; remove loose, dead hair as needed with a rubber brush. This breed is an average shedder.

Health Ailments

This sturdy and generally healthy dog is not without potential health problems. The Neapolitan Mastiff is susceptible to hip dysplasia, immune system problems, heart problems, cleft pallet and hair lip, cherry eye and hypothyroidism.

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