How long does a Doberman Mastiff Mix live?

A typical lifespan is 8–11 years, the midpoint of the Doberman (10–12 years) and the Mastiff (6–10 years).

Is a Doberman Mastiff Mix easy to train?

Trainability is moderate to very high, based on how both parent breeds respond to training. Start early and keep sessions short.

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Doberman Mastiff Mix

A Doberman Mastiff mix is a cross between a Doberman and a Mastiff. Most grow into giant dogs of 90–165 lb and live 8–11 years.

Doberman, a purebred dog — DobermanPhoto: Fran Hogan, CC BY 2.5, source

Mastiff, a purebred dog — MastiffPhoto: Pleple2000, CC BY-SA 3.0, source

Photos show the purebred parents. There is no single look for a mix: puppies in one litter can resemble either side.

Weight90–165 lbcan be 60–230 lb

Height26–29 inat the shoulder

Lifespan8–11 years

SizeGiant

How big does a Doberman Mastiff Mix get?

Doberman60–100 lb

The mix90–165 lb

Mastiff120–230 lb

Pounds. The dark band is where most Doberman Mastiff Mix dogs end up; the light band is the full range between the smallest and largest parent.

Height runs 26–29 inches at the shoulder, against 24–28 in for the Doberman and 27.5–30 in for the Mastiff.

Coat, energy and training

Shedding

Low to high

Neither parent has a low-shedding coat, so expect dog hair around the house and seasonal heavy shedding.

Energy

Moderate to very high

Plan on long daily walks plus real exercise, such as running, fetch or a sport. A yard alone will not tire this dog out.

Trainability

Moderate to very high

The Doberman rates very high and the Mastiff moderate; a puppy may lean either way.

Grooming

Very low

A weekly brush and the odd bath keep the coat in shape.

Temperament

The Doberman is usually described as loyal, fearless, alert. The Mastiff as courageous, dignified, good-natured. A mix can take after either parent or land in between. If you can, meet both parents of a puppy before you choose.

Doberman vs Mastiff vs the mix

Trait	Doberman	Doberman Mastiff Mix	Mastiff
Weight	60–100 lb	90–165 lb	120–230 lb
Height	24–28 in	26–29 in	27.5–30 in
Lifespan	10–12 yr	8–11 yr	6–10 yr
Shedding	high	low to high	low
Energy	very high	moderate to very high	moderate
Group	Working	mixed	Working

Questions about the Doberman Mastiff Mix

How big does a Doberman Mastiff Mix get?: Most grow to 90–165 pounds and 26–29 inches at the shoulder. Because puppies can take after either parent, the full possible range is 60–230 pounds.
How long does a Doberman Mastiff Mix live?: A typical lifespan is 8–11 years, the midpoint of the Doberman (10–12 years) and the Mastiff (6–10 years).
Does a Doberman Mastiff Mix shed?: Shedding is low to high. Neither parent has a low-shedding coat, so expect dog hair around the house and seasonal heavy shedding.
Is a Doberman Mastiff Mix easy to train?: Trainability is moderate to very high, based on how both parent breeds respond to training. Start early and keep sessions short.

Other Doberman mixes

Other Mastiff mixes

Figures are calculated from each parent breed's standard height, weight and life expectancy. How we calculate.