Neapolitan Mastiff at a glance
- Size
- Large
- Height
- 65–75 cm
- Weight
- 50–70 kg
- Life expectancy
- up to 10 years
Typical for the breed, not a promise about any one dog.
Is the Neapolitan Mastiff right for you?
Like every breed, the Neapolitan Mastiff is not the right fit for every home. Based on the breed’s typical traits:
May suit you if…
- You can give around an hour of exercise a day.
- You would like a dog that tends to be quiet.
- You would like a coat that is fairly easy to look after.
- You would like a dog that is usually calm at home.
Consider another breed if…
- The dog would regularly be left alone for long working days.
- You live in a flat or a small home.
- You have young children at home.
- This would be your first dog.
How would the Neapolitan Mastiff fit your lifestyle?
Choose a few details for a general, non-guaranteed view.
About the Neapolitan Mastiff
The Neapolitan Mastiff, often called the Neo, is a truly massive, powerful dog dressed in loose skin that forms deep folds around the head, lips and throat. The coat is short, dense and hard. With its family it is typically loyal, devoted and even-tempered, while remaining a watchful guardian.

Key characteristics
General breed tendencies, not a prediction for an individual dog.
- Size
Large
A large dog.
- Exercise
Moderate
Typically around an hour of exercise a day.
- Energy level
Usually calm
Tends to be calm and settled around the home.
- Grooming
Weekly
The coat usually needs brushing about once a week.
- Shedding
Moderate
Sheds a moderate amount, varying by dog and season.
- Trainability
Moderate
Generally trainable with patience and consistency.
- Good with children
Older children
Usually better with older, calmer children.
- Good with other dogs
Can be selective
Can be selective about other dogs.
- Good with cats
Varies
Varies with the individual dog.
- Suits first-time owners
Experienced owners
Best with an experienced owner.
- Barking / vocality
Tends to be quiet
Usually a fairly quiet dog around the home.
- Time alone
Prefers company
Usually copes only with short periods alone.
Its ancestors were the heavy, loose-skinned molosser dogs of ancient times, used for fighting and as dogs of war. It is said that these dogs marched with the legions of the Roman army, wearing broad spiked collars.
The modern breed owes much to the Italian painter Piero Scanziani, who kept a large kennel and devised a careful breeding plan to stabilise and improve it. The Neo first appeared in the show ring in 1946 in Naples, the home of the breed. It has worked as a police and guard dog but is now more often a show dog and companion. Today's breeders aim to keep breed type while reducing the exaggeration of loose skin.
Neapolitan Mastiff temperament
Neapolitan Mastiffs are typically vigilant guards that often look serious and watchful, yet can be affectionate, goofy and silly with their own family. Even a well-trained Neo will usually be reserved and aloof with strangers. They are generally quiet dogs, but will alert you to visitors and may be physically protective.
Like many big breeds, they can be clumsy and seemingly unaware of their size and power, so rough games such as wrestling are not a good idea. Be ready for drool, which can be flung a long way.
Size and appearance
Neapolitan Mastiffs typically stand 65–75 cm at the shoulder and weigh around 50–70 kg. Breed standard colours include black, blue, grey, blonde, fawn, red, mahogany and brindle.
How much exercise does a Neapolitan Mastiff need?
Adults usually need around an hour of exercise a day, best given as several shorter walks rather than one long outing, at their own pace. They are not an active, athletic breed.
Puppies must not be over-exercised while their bones and joints are developing. Avoid long walks, steep or uneven ground and stairs while they grow. They have a strong prey drive, so recall cannot always be relied on.
Training a Neapolitan Mastiff
The Neo is a surprisingly sensitive learner and slow to mature, so training takes time and patience.
- Use positive, reward-based methods.
- Keep training short and build it into everyday life rather than long sessions.
- Focus on socialisation and polite manners around people and other animals.
- Teach good lead walking early, so you can control a large, strong dog.
Neapolitan Mastiff grooming
The short coat needs little work: a brush once a week, or a couple of times a week with a stiff bristle brush, is usually enough. The skin folds need wiping clean every day, and after meals and drinks. Check paws daily for anything lodged between the toes or pads. Expect to wipe up drool and water after every drink.
Living with a Neapolitan Mastiff
Neos are loyal and affectionate with their family, but they are very large and slow to mature, and young dogs chew, jump up and play exuberantly. They are not an ideal choice for families with very small children or anyone easily knocked over. They can live with other animals if raised with them, but smaller pets are at risk even from well-meant play.
Whatever the breed, dogs and young children should never be left alone together, and an adult should supervise every interaction.
Children
Usually better with older, calmer children.
Other dogs
Can be selective about other dogs.
Cats and small pets
Varies with the individual dog.
Flats and smaller homes
Usually needs a roomy home.
Garden
A garden is helpful.
Being left alone
Usually copes only with short periods alone.
First-time owners
Best with an experienced owner.
Neapolitan Mastiff health
Not yet reviewed by a vet. This is general information, not veterinary advice: speak to your vet about your own dog’s health.
The Royal Kennel Club places the Neapolitan Mastiff in Breed Watch Category 3, meaning it has visible conformational issues that can cause pain or discomfort. Several health problems are recognised, so ask a breeder about health testing of the parents.
Hip and elbow dysplasia
Painful joint conditions that can lead to mobility problems. The Royal Kennel Club recommends hip and elbow testing under the BVA/KC schemes before breeding.
Eye conditions
The breed can suffer from hereditary eye disorders, and the Royal Kennel Club recommends eye testing under the BVA/KC/ISDS Eye Scheme. Excess facial skin can cause entropion and ectropion, where the eyelids turn in or droop out and irritate the eye. Cherry eye, where the gland of the third eyelid pops out, and eye ulcers can also occur.
Skin fold infections
Skin inside the folds can become sore and infected, which is why daily cleaning matters.
Breathing problems
Purina UK describes the Neo as a brachycephalic breed that can be affected by brachycephalic obstructive airway syndrome, where breathing is obstructed.
Gastric dilatation volvulus (bloat)
In large, deep-chested dogs the stomach can fill with gas and twist, often after eating. It needs urgent veterinary attention.
Dilated cardiomyopathy
The heart muscle weakens and pumps less effectively, and the onset can be sudden. Purina UK notes breed club heart testing.
Wobbler syndrome and back problems
Instability of the neck bones can compress the spinal cord and weaken the hind legs. Degenerative disc disease can cause back pain and paralysis.
Hypothyroidism, epilepsy and cancer
Neos can be more prone to an underactive thyroid, to seizures caused by epilepsy, and to some cancers, including bone tumours.
What health checks should you ask about?
Responsible breeders and rescues are happy to talk about health, and any pressure to decide quickly is a reason to walk away. Before taking a Neapolitan Mastiff home, it is reasonable to ask about:
- Health testing of the parents. Ask which health tests the parents have had for conditions known in the breed, and to see the results.
- Veterinary and vaccination records. Puppies should have had a first vaccination and a vet check, with records you can take home.
- Microchip information. In England, Scotland and Wales puppies must be microchipped and registered by eight weeks old. Ask who the chip is registered to and how the transfer works.
- Registration paperwork. Registration papers, where they apply, record pedigree. They do not by themselves prove health or how a puppy was raised.
How much does a Neapolitan Mastiff cost to own?
There are two costs: bringing a Neapolitan Mastiff home, and looking after one well. Puppy prices depend on the breeder, health testing and demand; the adverts below show what sellers are asking today.
Ongoing costs are the ones new owners most often underestimate: food, insurance (which usually rises with age), routine vet care, vaccinations and parasite treatment, dental care, grooming, training, bedding and equipment, and boarding or a sitter for holidays. Budget for the whole of the dog’s life, typically up to 10 years, not just the first year.
Buying a Neapolitan Mastiff
If you have decided the Neapolitan Mastiff suits your life, take the same care choosing where your dog comes from. Meet the puppy in person, see it with its mother, and look at how the litter is raised.
- Check who you are dealing with: every Mypetzilla advert shows the seller type and what we have checked.
- Ask about health testing, vaccinations and the microchip before you commit.
- Take your time. Do not be rushed by deposits or "last one left" stories.
- Meet in person before paying anything, and keep conversations on Mypetzilla.
Adopting a Neapolitan Mastiff
Neapolitan Mastiffs do come up for adoption, through rescue organisations, breed rescues and private rehoming, often because an owner’s circumstances have changed rather than any fault of the dog. An adult dog arrives as a known quantity: its size, coat and character are already on show.
Rescues will usually talk you through the dog’s history, any medical care, and the home it needs, including children, other animals and time alone. Be honest about your circumstances: a good rescue would rather place a dog once, well.
Neapolitan Mastiffs looking for homes
Live from Mypetzilla, updated as pets are listed.
Find Neapolitan Mastiff adverts for sale and for adoption on Mypetzilla now.
Similar breeds you may want to consider
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View breed guide
Neapolitan Mastiff FAQs
Is the Neapolitan Mastiff good with children?
Usually better with older, calmer children. Individual dogs vary with breeding, upbringing and health, so ask about the dog you are considering.
Can the Neapolitan Mastiff live in a flat?
Usually needs a roomy home. Exercise and company matter more than floor space.
How much exercise does the Neapolitan Mastiff need?
Moderate: typically around an hour a day. Puppies and older dogs need less structured exercise.
Does the Neapolitan Mastiff shed?
Moderate shedding.
How much grooming does the Neapolitan Mastiff need?
Typically: about once a week.
Is the Neapolitan Mastiff easy to train?
Generally trainable with consistency. Kind, reward-based training works best.
Can the Neapolitan Mastiff be left alone?
Usually copes only with short periods alone. Build up time alone gradually.
Does the Neapolitan Mastiff bark a lot?
Tends to be quiet. Individual dogs vary with breeding, upbringing and health, so ask about the dog you are considering.
Is the Neapolitan Mastiff good with cats?
Varies with the individual dog. Individual dogs vary with breeding, upbringing and health, so ask about the dog you are considering.
How long does the Neapolitan Mastiff live?
Typically up to 10 years. Lifespan varies with genetics, weight, care and luck.
How big does the Neapolitan Mastiff get?
Adults typically stand 65–75 cm at the shoulder and weigh 50–70 kg.



