Irish Terrier vs Mastiff
Terrier · Medium vs Working · Giant
Irish TerrierMedium
A bold, dashing, tenderhearted Irish 'daredevil' — fiery red-coated farm dog and WWI message-runner.
Weight: 27 lbsLifespan: 13–15 years
MastiffGiant
A courageous, dignified, good-natured giant — one of the most ancient breeds, formerly war dogs.
Weight: 160–230 lbsLifespan: 6–10 years
Quick take
- • Mastiff is the larger breed at 160–230 lbs (males) vs 27 lbs for the Irish Terrier.
- • The Irish Terrier typically lives longer (13–15 years).
- • The Irish Terrier has higher daily energy needs.
- • The Irish Terrier sheds less.
- • The Irish Terrier is generally more trainable.
Side-by-side traits
| Trait | Irish Terrier | Mastiff |
|---|---|---|
Group | Terrier | Working |
Size | Medium | Giant |
Origin | Ireland | England |
Height (male) | 18" | 30" |
Height (female) | 18" | 27.5" |
Weight (male) | 27 lbs | 160–230 lbs |
Weight (female) | 25 lbs | 120–170 lbs |
Lifespan Average expected lifespan. | 13–15 years | 6–10 years |
Energy level Daily activity needs. | High (4/5) | Low (2/5) |
Trainability How quickly the breed learns commands. | High (4/5) | Moderate (3/5) |
Intelligence Problem-solving ability. | High (4/5) | Moderate (3/5) |
Exercise needs Daily physical activity required. | High (4/5) | Low (2/5) |
Shedding Lower = less hair around your home. | Very Low (1/5) | Moderate (3/5) |
Grooming effort Brushing, bathing, professional grooming. | Moderate (3/5) | Very Low (1/5) |
Drooling Lower = drier face and furniture. | Very Low (1/5) | Very High (5/5) |
Barking How vocal the breed is. | Moderate (3/5) | Low (2/5) |
Good with kids | High (4/5) | High (4/5) |
Good with other dogs | Low (2/5) | Moderate (3/5) |
Good with strangers | High (4/5) | Moderate (3/5) |
Protectiveness Watchdog tendencies. | High (4/5) | Very High (5/5) |
Adaptability Apartment / new environment tolerance. | High (4/5) | Moderate (3/5) |
Coat length | wirehaired | short |
Hypoallergenic Lower-shedding, less dander. | Yes | No |
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About the Irish Terrier
The Irish Terrier is a bold, dashing, tenderhearted Irish 'daredevil' — fiery red-coated farm dog and WWI message-runner. Originally from Ireland, this medium terrier breed typically weighs 27 lbs and lives 13–15 years. Breeders describe them as bold, dashing, tenderhearted.
About the Mastiff
The Mastiff is a courageous, dignified, good-natured giant — one of the most ancient breeds, formerly war dogs. Originally from England, this giant working breed typically weighs 160–230 lbs and lives 6–10 years. Breeders describe them as courageous, dignified, good-natured.
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Irish Terrier health
Common health concerns reported in this breed:
- • Hip dysplasia
- • Hyperkeratosis
- • Eye disorders
Mastiff health
Common health concerns reported in this breed:
- • Hip dysplasia
- • Bloat
- • Heart disease
- • Cancer