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.
- 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.
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.
- Affection with family
- 4 of 51 independent · 5 devoted
- Good with young children
- 4 of 51 not suited · 5 very good
- Good with other dogs
- 4 of 51 not suited · 5 very good
- Openness to strangers
- 3 of 51 reserved · 5 everyone is a friend
- Watchdog / protective nature
- 5 of 51 unbothered · 5 vigilant
- Energy
- 3 of 51 couch potato · 5 busy all day
- Exercise needs
- 3 of 51 a short walk · 5 a job to do
- Playfulness
- 4 of 51 only when invited · 5 non-stop
- Barking
- 2 of 51 only to alert · 5 very vocal
- Shedding
- 1 of 51 barely · 5 constantly
- Drooling
- 4 of 51 a dry mouth · 5 keep a towel
- Tolerates being alone
- 2 of 51 poorly · 5 well
- Tolerates hot weather
- 2 of 51 poorly · 5 well
- Tolerates cold weather
- 4 of 51 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 AKCBullmastiff on DogTime
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.
Height 0–38 in
- Bullmastiff25–27 in
- Tosa24 in
- Boxer Dog22–25 in
- Ca de Bou22–23 in
- Broholmer30 in
- Segugio dell'Appennino17–20 in
- Dogue de Bordeaux24–27 in
Weight 0–220 lb
- Bullmastiff110–130 lb
- Tosa83–200 lb
- Boxer Dog65–75 lb
- Ca de Bou77–84 lb
- Broholmer143–198 lb
- Segugio dell'Appennino22–40 lb
- Dogue de Bordeaux120–145 lb
Lifespan 0–20 yrs
- Bullmastiff8–12 yrs
- Tosa10–12 yrs
- Boxer Dog10–12 yrs
- Ca de Bou10–12 yrs
- Broholmer10–13 yrs
- Segugio dell'Appenninono recorded figure
- 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.