Mastiff

A massive, dignified British giant with a calm, gentle temperament and a quietly protective nature.

At a glance

Size
Giant
Height at the withers
Males 76–84 cm · Females 70–78 cm
Weight
Males 73–100 kg · Females 54–77 kg
Life expectancy
7–10 years
Exercise
30–60 min a day
Grooming
Once a week
Coat
Smooth, short
Colours
Apricot, Fawn, Brindle
Bred for
Guarding, Companionship
Country of origin
United Kingdom
FCI
Group 2, no. 264 · Pinschers, molossers & mountain dogs

Breeders on Kuldo

No breeders on Kuldo have this breed yet.

Living with the breed

Affectionate with family5/5 – Very high
Good with children4/5 – High
Good with other dogs3/5 – Moderate
Good with cats3/5 – Moderate
Open to strangers2/5 – Low
Energy2/5 – Low
Playfulness2/5 – Low
Needs mental stimulation2/5 – Low
Easy to train3/5 – Moderate
Prey drive2/5 – Low
Watchful and protective4/5 – High
Barking1/5 – Very low
Shedding3/5 – Moderate
Grooming effort1/5 – Very low
Drooling5/5 – Very high
Good for first-time owners2/5 – Low
Suits apartment living2/5 – Low
Adaptability3/5 – Moderate
Copes with being alone3/5 – Moderate
Copes with heat2/5 – Low
Copes with cold3/5 – Moderate

Kuldo's own guidance from the breed's typical traits. Every dog is an individual, so talk to the breeder.

Is it the right breed for you?

Great if you …

  • want a calm, gentle giant
  • have space for a very large dog
  • like a relaxed pace of life

Think twice if you …

  • dislike drool
  • want a long-lived breed
  • have a small car or home

Care

Temperament

Gentle, calm and loyal, with a natural guarding instinct. Good-natured with people it knows and reserved with strangers.

Exercise

Moderate daily walks are enough; avoid heavy exercise while growing and in hot weather.

Grooming

The short coat needs only a weekly brush; keep a towel handy for drool.

Training

Sensitive and sometimes stubborn; gentle, reward-based training and early leash manners are essential.

Health

Known concerns include hip and elbow dysplasia, bloat, eyelid problems, heart disease and some cancers. Ask the breeder for the parents' hip, elbow and eye results.

Health tests breeders usually do

  • Hips (HD)
  • Elbows (ED)
  • Eye examination
  • Heart

DNA tests

  • PRA (RHO)

Ask the breeder to show you the parents' results.

About the breed

The Mastiff, often called the Old English Mastiff, is one of the oldest British breeds. Large guard dogs of this type have been kept in England for centuries, and the modern breed was standardised in the 19th century. It nearly died out after both world wars and was rebuilt from a small number of dogs.

It is a calm, gentle and dignified companion that loves its family. It is usually quiet and placid, but its size and strength mean it needs early training. Drool, snoring and big costs are part of life with a Mastiff.

Did you know?

A Mastiff named Zorba was listed by Guinness World Records in 1989 as the heaviest dog, weighing about 155 kg.

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