Bullmastiff

A Bullmastiff
Photo: Fausto Moreno, CC BY-SA 3.0, via Wikimedia Commons
Working Group
AKC RecognizedBest for active homes
📏 Size
Extra Large
⚖️ Weight
45 - 59 kg
🌍 Origin
England
🐕 Shedding
Moderate
✂️ Grooming
Monthly
Energy Level
low
Exercise: 1–1.5 hrs a day
A guide for a healthy adult. Puppies, older dogs and flat-faced breeds in the heat need less.

Good to know

  • Gamekeeper's dog: bred in England to stop and hold poachers, they are protective, quiet and confident guardians.
  • Calm indoors: they are usually docile at home and need only moderate daily exercise.
  • Needs early training: their size and strength mean early socialization and consistent training are essential.
  • Drool and heat: they can drool and, with their short muzzle, should be kept cool in hot weather.

Getting out with a Bullmastiff

They're happy with shorter, easy walks. Keep outings gentle in the heat.

Explore more breeds in the Working group

Browse Working Breeds
BarkParkBarkPark.

The social layer for dog life. Find parks, track your dog's health, and celebrate your pack — all in one place.

© 2026 BarkPark, Inc. All rights reserved.