How long does a Mastiff Greyhound Mix live?

A typical lifespan is 8–12 years, the midpoint of the Mastiff (6–10 years) and the Greyhound (10–13 years).

Is a Mastiff Greyhound Mix easy to train?

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

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Mastiff Greyhound Mix

A Mastiff Greyhound mix is a cross between a Mastiff and a Greyhound. Most grow into giant dogs of 90–150 lb and live 8–12 years.

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

Greyhound, a purebred dog — GreyhoundPhoto: Neurodoc, 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.

Weight90–150 lbcan be 60–230 lb

Height27–30 inat the shoulder

Lifespan8–12 years

SizeGiant

How big does a Mastiff Greyhound Mix get?

Mastiff120–230 lb

The mix90–150 lb

Greyhound60–70 lb

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

Height runs 27–30 inches at the shoulder, against 27.5–30 in for the Mastiff and 27–30 in for the Greyhound.

Coat, energy and training

Shedding

Low

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

Energy

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

The Mastiff rates moderate and the Greyhound low; a puppy may lean either way.

Grooming

Very low

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

Temperament

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

Mastiff vs Greyhound vs the mix

Trait	Mastiff	Mastiff Greyhound Mix	Greyhound
Weight	120–230 lb	90–150 lb	60–70 lb
Height	27.5–30 in	27–30 in	27–30 in
Lifespan	6–10 yr	8–12 yr	10–13 yr
Shedding	low	low	low
Energy	moderate	high	high
Group	Working	mixed	Hound

Questions about the Mastiff Greyhound Mix

How big does a Mastiff Greyhound Mix get?: Most grow to 90–150 pounds and 27–30 inches at the shoulder. Because puppies can take after either parent, the full possible range is 60–230 pounds.
How long does a Mastiff Greyhound Mix live?: A typical lifespan is 8–12 years, the midpoint of the Mastiff (6–10 years) and the Greyhound (10–13 years).
Does a Mastiff Greyhound Mix shed?: Shedding is low. Neither parent has a low-shedding coat, so expect dog hair around the house and seasonal heavy shedding.
Is a Mastiff Greyhound Mix easy to train?: Trainability is moderate, based on how both parent breeds respond to training. Start early and keep sessions short.

Other Mastiff mixes

Other Greyhound mixes

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