The Mastiff comes from a group of dog breeds known as "molossers", which is a term given for breeds known for their strength and stature, such as bulldogs or pit bulls. Mastiffs are considered the largest breed of dog in the world, weighing in at arounds 220 lbs or higher. Their strength means that they were often historically fought against wild animals for sport.


Though Mastiffs can receive bad press for being aggressive in nature, this is not the case; in fact, they should be good-natured and relatively docile. Their personality can be shaped by certain factors, such as their genetic traits, how well they have been trained and the degree to which they have been socialised.

The breed is tolerant of strangers outside of the family unit, but is still capable of being a good guard dog. They will protect the family and home from intruders, though they also do not like conflict between members of the family.

Timidness can be quite commonly seen in Mastiffs. Although this can be overcome to some degree through socialisation and obedience...

Read more about the Mastiff description of breed...

The latest videos

There are no videos for this breed yet!

Most recent championships

Still no Championships are assigned to this breed.

The latest breeds

Still no breeds are associated with this breed!

Last added

read on

Most visited dogs


Random pictures