Breed # Bullmastiff The Bullmastiff is a working breed from England, standing males 25–27 in · females 24–26 in at the withers, weighing males 110–130 lb · females 90–120 lb. Recorded lifespan is 8–12 yrs. ![A photograph of the Bullmastiff](https://www.woofandbeyond.com/breeds/lg/bullmastiff.webp) Breed group Working Origin England Height males 25–27 in · females 24–26 in Weight males 110–130 lb · females 90–120 lb Lifespan 8–12 yrs Among the 500 breeds here with recorded measurements, the Bullmastiff is taller than 81% of the measured breeds, heavier than 93%, one of 31 in the Working group, one of 27 from England. Compare the Bullmastiff with another breed ## Living with the Bullmastiff Two breed references score every breed they cover from 1 to 5 on the things an owner lives with day to day. These are the Bullmastiff’s, with what a 1 and a 5 mean on each row. Around people and other dogs Affection with family 4 of 5 1 independent · 5 devoted Good with young children 4 of 5 1 not suited · 5 very good Good with other dogs 4 of 5 1 not suited · 5 very good Openness to strangers 3 of 5 1 reserved · 5 everyone is a friend Watchdog / protective nature 5 of 5 1 unbothered · 5 vigilant What they will ask of you Energy 3 of 5 1 couch potato · 5 busy all day Exercise needs 3 of 5 1 a short walk · 5 a job to do Playfulness 4 of 5 1 only when invited · 5 non-stop Barking 2 of 5 1 only to alert · 5 very vocal Around the house Shedding 1 of 5 1 barely · 5 constantly Drooling 4 of 5 1 a dry mouth · 5 keep a towel What they tolerate Tolerates being alone 2 of 5 1 poorly · 5 well Tolerates hot weather 2 of 5 1 poorly · 5 well Tolerates cold weather 4 of 5 1 poorly · 5 well Rated 1 to 5 by the American Kennel Club and DogTime, averaged where both rate the same thing, and read from their breed pages in 2022. Nobody at Woof & Beyond has met this breed — these are the publishers’ judgments, not ours.[Bullmastiff on AKC](https://www.akc.org/dog-breeds/bullmastiff/)[Bullmastiff on DogTime](https://dogtime.com/dog-breeds/bullmastiff) ## Breeds that look like the Bullmastiff A neural network trained to tell breeds apart by sight read all 510 photographs in this reference, and these are the 6 it placed closest to the Bullmastiff. - [![](https://www.woofandbeyond.com/breeds/tosa.webp)Tosa](https://www.woofandbeyond.com/breed/tosa/) - [![](https://www.woofandbeyond.com/breeds/boxer-dog.webp)Boxer Dog](https://www.woofandbeyond.com/breed/boxer-dog/) - [![](https://www.woofandbeyond.com/breeds/ca-de-bou.webp)Ca de Bou](https://www.woofandbeyond.com/breed/ca-de-bou/) - [![](https://www.woofandbeyond.com/breeds/broholmer.webp)Broholmer](https://www.woofandbeyond.com/breed/broholmer/) - [![](https://www.woofandbeyond.com/breeds/segugio-dell-appennino.webp)Segugio dell'Appennino](https://www.woofandbeyond.com/breed/segugio-dell-appennino/) - [![](https://www.woofandbeyond.com/breeds/dogue-de-bordeaux.webp)Dogue de Bordeaux](https://www.woofandbeyond.com/breed/dogue-de-bordeaux/) Side by side Height 0–38 in 1. Bullmastiff25–27 in 2. Tosa24 in 3. Boxer Dog22–25 in 4. Ca de Bou22–23 in 5. Broholmer30 in 6. Segugio dell'Appennino17–20 in 7. Dogue de Bordeaux24–27 in Weight 0–220 lb 1. Bullmastiff110–130 lb 2. Tosa83–200 lb 3. Boxer Dog65–75 lb 4. Ca de Bou77–84 lb 5. Broholmer143–198 lb 6. Segugio dell'Appennino22–40 lb 7. Dogue de Bordeaux120–145 lb Lifespan 0–20 yrs 1. Bullmastiff8–12 yrs 2. Tosa10–12 yrs 3. Boxer Dog10–12 yrs 4. Ca de Bou10–12 yrs 5. Broholmer10–13 yrs 6. Segugio dell'Appenninono recorded figure 7. Dogue de Bordeaux5–8 yrs Nothing here was grouped by hand. The ranking is an opinion about appearance, not about ancestry, which is why it sometimes puts together breeds no kennel club would — and why it is worth looking at the photographs rather than taking the order on trust. ## Guides that mention the Bullmastiff Every guide on this site whose text actually discusses this breed. - [From Couch-Potato to Bodyguard: Training Your Dog for Personal Protection](https://www.woofandbeyond.com/how-to-train-dog-for-protection/) - [Why Are Dogs so Expensive?](https://www.woofandbeyond.com/why-are-dogs-so-expensive/) - [Your Dog Sleeps on Your Pillow? Here's Why](https://www.woofandbeyond.com/why-does-my-dog-sleep-on-my-pillow/) See the Bullmastiff on the breed map Read about the Bullmastiff on Wikipedia