Breed matchup

Great Dane vs Mastiff

Interactive head-to-head—swap sides, filter traits, and see who edges each lifestyle score before you read the full guides.

Great Dane

Mastiff

Great Dane

large · Germany

Mastiff

large · England

Head-to-head

Great Dane vs Mastiff

Derived comparison from breed profiles: Both land in a similar moderate energy band. Great Dane scores higher with kids (5/5 vs 2/5). Shedding levels are similar. Gentle giant known as the 'Apollo of dogs. Massive, gentle giant known for their calm demeanor.

large vs large

Energy 3 vs 2

short vs short

7-10 years · 6-10 years

Biggest differences

Weight

110-175 lbs

120-230 lbs

Height

28-32 inches

27-30 inches

Lifespan

7-10 years

6-10 years

Monthly cost*

$90–$170

*Typical ownership cost band estimate—not a quote.

Lifestyle scores

Tap a trait for context. Filter by what matters most to you.

Temperament

Typical breed leanings—individuals vary.

Great Dane

Gentle giant known as the 'Apollo of dogs. Overall, Great Danes are described as gentle, friendly, patient, dependable. Trainability sits around 3/5 and bark tendency around 3/5, so patience and clear boundaries matter more than force.

Gentle

Friendly

Patient

Dependable

Mastiff

Massive, gentle giant known for their calm demeanor. Overall, Mastiffs are described as gentle, calm, loyal, protective. Trainability sits around 3/5 and bark tendency around 2/5, so patience and clear boundaries matter more than force.

Gentle

Calm

Loyal

Protective

Care side by side

Grooming, exercise, and training at a glance.

Great Dane

Moderate energy requiring daily walks and playtime.

Mastiff

Low energy requiring moderate daily exercise.

Who should choose which?

Use this as a shortlist—then meet dogs and read full guides.

Choose Great Dane

Choose a Great Dane if you want a large dog with moderate energy, kids fit excellent, and apartment fit poor. Temperament leans gentle and friendly.

Choose Mastiff

Choose a Mastiff if you prefer large size, low to moderate energy, kids fit limited, and apartment fit poor. Traits include gentle and calm.

Still deciding?

Take the lifestyle match quiz or open both breed guides for first-year costs, health screening, and adopter questions.

FAQs

What is the difference between a Great Dane and a Mastiff?

Which is better for apartments, Great Dane or Mastiff?

Both score 1/5 for apartments — daily exercise still decides success.

Which is better with kids, Great Dane or Mastiff?

Great Dane scores higher with kids (5/5). Supervision still matters.

How do Great Dane and Mastiff compare on energy?

Great Dane: 3/5 (moderate). Mastiff: 2/5 (low to moderate). Match the higher-energy breed only if you can meet exercise needs daily.

References

This comparison summarizes publicly available breed-standard and veterinary education sources. Always consult your veterinarian for individual care, and meet dogs in person before deciding.