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The Japanese Mastiff, created in Japan by crossing the Shikoku dog with Western breeds. Patient, composed, bold and courageous.
The Tosa, also known as the Japanese Mastiff, was developed in Japan against a dog-fighting tradition dating back to the 14th century, by crossing the Shikoku dog with Western breeds including the Bulldog (1872), Mastiff (1874), German Pointer (1876) and Great Dane (1924). Fixed as a mastiff-type fighting dog of great stamina, it now serves mainly as a guard dog. Dignified and robust, it is patient, composed, bold and courageous, and suited to experienced owners.
The Tosa lives 10-12 years.
The Tosa grows to Height 60cm+ (male) / 55cm+ (female).
Origin
Japan
Lifespan
10-12 years
Size
Height 60cm+ (male) / 55cm+ (female)
Temperature
15〜26℃
High-quality large-breed dog food. Feed 2-3 smaller meals daily to help prevent bloat.
Edited & verified by: BreederDirect editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Primary sources
Authority databases: JKC (Japan Kennel Club) breed profiles (JA)
Nomenclature follows global taxonomic authority databases.
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Patient, composed, bold and courageous. Loyal to its owner.
60+ min walk daily. Very powerful; must be handled by someone who can control it.
Short coat, easy to maintain. Weekly brushing is sufficient.
Japan
A powerful breed with fighting-dog heritage; consistent training and socialization from puppyhood are essential. Watch for gastric torsion and hip dysplasia.
Advanced. This is an advanced-level species. It requires specialized equipment and advanced husbandry skills with precise environmental control.
The average lifespan of Tosa is 10-12 years. With proper care and nutrition, they can live a long and healthy life.
Tosa typically reaches Height 60cm+ (male) / 55cm+ (female) as an adult. Size may vary depending on care conditions and individual genetics.
Tosa feeds on: High-quality large-breed dog food. Feed 2-3 smaller meals daily to help prevent bloat.. Aim for a balanced diet with appropriate feeding frequency.
The price of Tosa varies significantly depending on lineage, coat color, sex, and age. Check our market price page for the latest pricing information.
Last updated: August 31, 2026