Tosa Pedigrees

Browse over 200 dogs in our Tosa database.

24-32 inches

130-200 lbs.

Life Span:
10-12 years

About the "Japanese Mastiff"

The Tosa, also known as the 'Japanese Mastiff', is one of the more rare breeds in the Mastiff group and was originally was bred in Japan during the mid-1800s. While they make fantastic guard dogs and in spite of their intimidating in stature, their 'bark is louder than their bite' and for the most part are quiet and obedient dogs.

Tosa Pedigree Reports

You'll find a sample 5 generation Tosa pedigree from our database below. To learn more about the dog's lineage, click on any ancestor in the pedigree to dig deeper. Hovering your mouse over the icons will bring up photos, health, genetic and additional information such as color, unique markings and show titles. Inbred ancestors are highlighted with matching colors within pedigree charts so you can easily spot them. Each pedigree report also contains additional reports for offspring, siblings, linebreeding, inbreeding and test matings. Our knowledgebase also offers additional resources to help you read and understand pedigrees.