American Mastiff – Breed Info, Traits & Characteristics | Puppies.com Skip to main content
Home Breeds American Mastiff

American Mastiff
Complete Breed Guide

"Wonderful pet if you have the space"

Puppies.com
Reviewed by
Puppies.com Editorial Team
Breed experts since 2003
Last updated: May 2026
Find American Mastiff Puppies
American Mastiff breed photo

Quick Facts About American Mastiffs

working
Breed Group:
Working
Weight
Adult Weight:
120–200 lbs
Height
Adult Height:
28–36"
Hypoallergenic
Hypoallergenic:
No
American Mastiff Average Price
$929

Based on current listing prices on Puppies.com. Results may vary.

Find American Mastiff Puppies

Overview

The American Mastiff is a large dog breed that is a cross between an English Mastiff and an Anatolian Mastiff. This breed is known for its gentle and protective nature, making it a great choice for families with children.

Temperament and Behavior

These dogs are known for their calm and gentle demeanor. They are loyal and protective of their families, but also friendly and outgoing. They are good with children and other pets, making them a great family pet. They are prone to drooling and may require regular cleaning of their facial folds.

Coat & Grooming

They have a short, dense coat that comes in a variety of colors, including fawn, brindle, and apricot. American Mastiffs require regular brushing to keep their coat healthy and clean.

Lifestyle & Living Conditions

The American Mastiff adapts well to a variety of living situations, including apartment living, as long as they have regular access to exercise and playtime and room to house them.

Exercise & Activity

American Mastiffs are relatively low-energy dogs and do not require a lot of exercise. However, they do benefit from daily walks and playtime to maintain their physical and mental health.

Characteristics at-a-glance

Ratings are on a scale of 1–10, based on breed standards and typical temperament.

Affection
Playfulness
Trainability
Intelligence
Exercise Needs
Grooming
Good w/ Kids
Good w/ Dogs
Good w/ Cats
Watchdog
Barking Level
Space Needs
Find American Mastiff Puppies

American Mastiff FAQs

Common questions about the American Mastiff breed, answered by our editorial team.

Find American Mastiff Puppies