An ancient breed, the Neapolitan Mastiff is a heavy-boned, massive, awe-inspiring dog bred for use as a guard.  They are a very intuitive defender of owner and property. They are neither as active nor energetic as some other guardian breeds, but are extremely intelligent dogs.  While conserving energy for the appropriate situations, their lightning-fast reflexes, fierce personality and intimidating stature are employed to protect its master and property.  They are characterized by loose skin, over their entire body, an abundance of hanging wrinkles and folds on the head and a voluminous dewlap. The essence of the Neapolitan is their bestial appearance, astounding head and imposing size and attitude. Due to his massive structure, his characteristic movement is rolling and lumbering, not elegant or showy.

A Neapolitan Mastiff can be a remarkable family pet and when raised properly is gentle and famously loyal to its owner. These dogs can be very loving with children, when children are taught to respect them. The Neapolitan Mastiff has a dedication to its family unit that is unsurpassed, preferring to remain in the family home or garden rather than going off wandering.  The Neapolitan Mastiff is naturally reserved and aloof with strangers and should have broad socialization from an early age combined with responsible handling by an experienced owner. This is an immensely powerful Molosser.