Dog breed profile

Bullmastiff

Bullmastiffs rate 4 of 5 for affection with family, 3 with young children and 4 for energy on the AKC breed scale. Shedding is moderate and trainability is high.

KidsEnergySheddingTrainability

Is it right for me? Compare with another breed

Bullmastiff dog
Photo: Fausto Moreno, CC BY-SA 3.0, via Wikimedia Commons

Temperament and care ratings

The American Kennel Club rates every breed from 1 to 5 on the traits below. They describe how the breed tends to be, not a promise about one dog.

Affection with family4/5Independent to Lovey-Dovey
Good with young children3/5Not Recommended to Good With Children
Good with other dogs3/5Not Recommended to Good With Other Dogs
Openness to strangers3/5Reserved to Everyone Is My Best Friend
Playfulness3/5Only When You Want To Play to Non-Stop
Energy level4/5Couch Potato to High Energy
Trainability4/5Self-Willed to Eager to Please
Mental stimulation needs4/5Happy to Lounge to Needs a Job or Activity
Adaptability3/5Lives For Routine to Highly Adaptable
Watchdog / protective5/5What's Mine Is Yours to Vigilant
Barking1/5Only To Alert to Very Vocal
Shedding3/5No Shedding to Hair Everywhere
Coat grooming1/5Monthly to Daily
Drooling3/5Less Likely to Drool to Always Have a Towel

Coat: Smooth coat, short.

A Bullmastiff suits

  • A first-time owner who wants an eager learner (trainability 4 of 5)
  • Runners, hikers and active households (energy 4 of 5)
  • Anyone who wants a natural watchdog (protective nature 5 of 5)

Think twice if

  • You can't offer daily training or puzzle games (mental stimulation needs 4 of 5)

What the ratings mean day to day

An energy score of 4 and mental stimulation needs of 4 mean plenty of daily exercise plus training games or puzzle feeders. With barking at 1 of 5 and a watchdog score of 5, expect a fairly quiet dog. Grooming at 1 of 5 means an occasional brush.

Popularity

In 2020 it ranked 55.

Breeds with a similar profile

Closest matches across all 14 trait ratings:

Compare: Bullmastiff vs Rottweiler · Bullmastiff vs Cane Corso · Bullmastiff vs Australian Cattle Dog

Frequently asked questions

Are Bullmastiffs good with kids?

The AKC rates the Bullmastiff 3 out of 5 for being good with young children. Supervise early meetings and teach kids how to handle a dog.

Do Bullmastiffs shed a lot?

Shedding is rated 3 out of 5 (moderate), and coat grooming 1 out of 5.

Are Bullmastiffs easy to train?

Trainability is rated 4 out of 5 and mental stimulation needs 4 out of 5.

How much energy does a Bullmastiff have?

Energy is rated 4 out of 5 and playfulness 3 out of 5.

Ratings: American Kennel Club breed pages, compiled February 2022 (AKC Bullmastiff page). 2025 ranking: AKC, published August 2026. How we check.

Tips from owners

Own a Bullmastiff? Share one tip for a new owner. The first good one goes right here.

Share a tip

We read every tip before it goes live. No links, please, and nothing personal about other people.

Questions from dog owners

Got a question about Bullmastiff? Ask it here. We answer the useful ones on this page.

Ask a question

We can’t reply privately. Useful questions get answered here on the page.

Newsletter

One useful dog email a week

Food safety, feeding and breed answers, checked against vet sources. Plus seasonal warnings, like holiday foods to keep away from dogs.

Free. Unsubscribe any time. We never share your email. Privacy.