🐕‍🦺 X-Large · Italy

Neapolitan Mastiff: Size, Weight & Temperament

A massive Italian molosser with pronounced skin folds, a deep voice, and a calm, highly watchful temperament, making it an imposing guard and protection dog for experienced owners.

! Experienced only
Neapolitan Mastiff dog breed portrait
Photo: Anka Friedrich · CC BY-SA 3.0 · Wikimedia Commons
Weight male60–70 kg
Weight female50–60 kg
Shoulder height60–75 cm
Size classX-Large (over 45 kg)
Fully grownat approx. 24 months
Life expectancy8–10 years
Activity levelLow
OriginItaly
ClassificationFCI Group 2, Section 2.1 (Molossoid, Mastiff type)
Temperament & character

The Neapolitan Mastiff is calm, composed, and territorial, tender and affectionate with its family. It is naturally suspicious and watchful of strangers, which makes it an excellent guard dog. Despite its bulk, it is not an aggressive dog but a deliberate, considered one.

Exercise & stimulation

Exercise needs are moderate; long endurance runs or jumping should be avoided because of the strain on the joints, especially during growth. Short, calm walks and time within its own territory are usually enough for the breed. Excessive exertion in heat should be avoided given its short muzzle and heavy build.

Grooming

The short coat is low-maintenance, but the deep facial skin folds must be cleaned regularly and kept dry to prevent infections. Drooling is typical of the breed. Eyelids should be monitored for possible malformations.

Suitable for beginners?

Given its size, strength, and pronounced protective instinct, the Neapolitan Mastiff is clearly reserved for experienced owners. Early, thorough socialization and confident leadership are essential. Living conditions must also match the breed's space and weight requirements.

Health & common problems

The breed's size and anatomy place a heavy burden on its body: hip dysplasia, bloat, and skin-fold infections are common. Life expectancy is comparatively short at around 8 to 10 years. A breeder who health-tests the parent dogs is especially important for this breed.

Good with: experienced owners with space, not a beginner's dog

Is your Neapolitan Mastiff at a healthy weight? Calculate the ideal weight and the right portion size for free in the Souldog app.

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This information is for general guidance and does not replace veterinary or breeder advice. Temperament and health vary individually within every breed.