Best guard and watchdog breeds

How we ranked them

Breeds qualify with a watchdog rating of 4 or 5. We score each by doubling its watchdog rating and adding its trainability rating, so alert dogs that also learn quickly rank higher. Ratings come from our breed profiles and describe the typical dog of each breed. Every dog is an individual, and a high rating describes alertness, not a promise of how any dog will behave with strangers.

See how we research and rate breeds.

Before you choose

Start socialization early and keep it positive. The AVMA recommends gradually exposing puppies to different situations under controlled conditions and teaching basic commands. A well-socialized dog is easier to read and safer to own.

Use reward-based training. The American Veterinary Society of Animal Behavior links methods that rely on fear or pain to anxiety, stress and aggression. If your dog shows fear or aggression, work with a qualified trainer who uses humane methods.

Manage the setting as well as the dog. Secure fencing, a quiet spot when visitors arrive and clear house rules prevent most problems. Never leave a young child alone with a dog; our list of family dogs shows breeds with strong kid ratings, and the easy-to-train list helps if obedience is a priority.