Irish Wolfhound vs Mastiff

Choosing between Irish Wolfhound and Mastiff? These two are closely matched on size and energy, so your decision comes down to the finer points — grooming, shedding, trainability and how each fits your household. Below we break down exactly how the two breeds compare on the things that shape daily life with a dog, so you can see which one is the better fit for your home, family and routine.

Irish Wolfhound vs Mastiff: full comparison

TraitIrish WolfhoundMastiff
SizeGiantGiant
Energy levelLowLow
TrainabilityMediumMedium
FriendlinessVery HighHigh
Good with childrenVery HighVery High
Grooming needsMediumLow
SheddingMediumMedium
BarkingVery LowLow
ProtectivenessLowHigh
AdaptabilityLowLow
Typical lifespan7 years8 years
HypoallergenicNoNo

Key differences at a glance

Size and living space

The Irish Wolfhound is a giant breed that requires real space: bigger rooms, a bigger car and a bigger food budget. By comparison, the Mastiff is a giant breed that requires real space: bigger rooms, a bigger car and a bigger food budget. Because they are a similar size, neither has a clear space advantage — both will suit the same kind of home.

Exercise and energy needs

The Irish Wolfhound needs light but regular activity to stay content. The Mastiff needs light but regular activity to stay content. Their exercise needs are broadly the same, so this is unlikely to be a deciding factor.

Grooming and shedding

The Irish Wolfhound wants brushing on a regular schedule to stay tidy and loses a fair amount of coat, especially seasonally. The Mastiff asks for a light brush once or twice a week and loses a fair amount of coat, especially seasonally. If low upkeep matters to you, factor this in — the difference adds up over a dog's lifetime.

Temperament, training and family life

The Irish Wolfhound trains reasonably well with regular positive sessions, almost never barks and is renowned for its patience and gentleness with children. The Mastiff trains reasonably well with regular positive sessions, speaks up only now and then and is renowned for its patience and gentleness with children. On guarding instinct, Irish Wolfhound is not especially protective and is welcoming to visitors, whereas Mastiff is naturally watchful and protective of its family and home.

Which is better for…

Which should you choose?

Choose the Irish Wolfhound if you want a more outgoing, sociable dog or you prefer a quieter dog.

Choose the Mastiff if you want a more protective, watchful guardian, you prefer lower grooming upkeep, or you want a longer-lived breed.

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Frequently asked questions

Is the Irish Wolfhound or the Mastiff better for families with children?
Both the Irish Wolfhound and the Mastiff are considered good with children when properly socialized and supervised.
Which sheds more, the Irish Wolfhound or the Mastiff?
The Irish Wolfhound and Mastiff shed a similar amount (medium).
Which is easier to train, the Irish Wolfhound or the Mastiff?
Both breeds have comparable trainability. Consistency and positive reinforcement work well for each.
Is Irish Wolfhound or Mastiff bigger?
Irish Wolfhound and Mastiff are a similar size (Giant).
Which barks more, Irish Wolfhound or Mastiff?
Mastiff tends to be the more vocal of the two, so Irish Wolfhound is the quieter choice.
Which is better for apartment living, Irish Wolfhound or Mastiff?
For apartment or apartment living, Irish Wolfhound has the edge, thanks to its size, quieter nature and more manageable energy.

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