By Mambo Dogs teamEditorial review pendingSuggest a correction

Sources for this article

AKC: Kerry Blue Terrier breed overview

Terrier group · Ireland

Kerry Blue Terrier

Also called Kerry, Irish Blue Terrier

Born black, turning blue by adolescence, this Irish farm terrier trades shedding for a standing appointment with scissors.

The Kerry Blue Terrier comes from County Kerry in southwest Ireland, where it caught vermin, herded, guarded and even retrieved. Its soft, wavy coat barely sheds but grows without stopping, so owners either learn to clip and scissor or budget for a groomer every six to eight weeks.

Original AI-generated breed illustration

Weight

14 to 18 kg

31 to 40 lb

Height

44 to 50 cm

at the shoulder

Life expectancy

12 to 15 yrs

Activity estimate

90 to 120 min

editorial daily planning range

Adult-size estimate

18 months

approximate model input

Life with a Kerry Blue Terrier

The coat is what draws people to this breed, and it is also the biggest commitment. A Kerry Blue carries a soft, silky, wavy single coat that keeps growing and does not drop hair around the house the way most breeds do. That appeals to tidy households and to some people with mild allergies, but it means loose hair stays trapped in the coat, where it tangles fast without regular brushing and professional trims.

County Kerry farmers bred these dogs as practical all-rounders, using them to catch rats, otters and badgers, move livestock, guard the property and even retrieve game. The breed first appeared at Irish shows in the early 20th century, initially untrimmed and looking far shaggier than today. It became closely tied to Irish identity, helped by the fact that Michael Collins kept one.

A Kerry is spirited, playful and affectionate with its family, often the household clown. It is also a true terrier: confident, curious, quick to react to other dogs and not shy about sharing opinions. Many Kerries are gentle and patient with children they know while staying watchful and protective of home.

The color change is part of the fun. The puppy you bring home is black, and over roughly the first two years the coat lightens to shades of blue-gray, often keeping darker points on the muzzle, ears, tail and feet. Final color is not settled until around 18 months to 2 years.

What stands out

Grooming

Brush the coat thoroughly two or three times a week with a slicker brush and a metal comb, reaching right down to the skin. Pay particular attention to the beard, the legs, the armpits and behind the ears, where mats form fastest. Loose hair stays in the coat rather than falling out, so skipping brushing for a week can lead to tangles that must be clipped out.

Read the full grooming guide

Illustrative grooming schedule based on our editorial coat-care score. Adjust it to the individual coat and professional advice.

Brushing
Daily
Bathing
Every 3 to 6 weeks
Shedding
Minimal
Nail trim
Every 3 to 4 weeks

A great match for

owners who want a low-shedding dog and accept grooming costs
active families with older children
people who enjoy training games and dog sports
homes where it is the only dog or has an easy-going opposite-sex companion

Think twice if

professional grooming every 6 to 8 weeks plus brushing at home
can be quarrelsome with other dogs, especially of the same sex
strong prey drive toward small animals
a stubborn, independent streak
a beard that collects food and water

Personality and needs at a glance

Living together

Good with children

Good with other dogs

Open with strangers

Apartment friendly

Copes with alone time

Energy and character

Energy level

Playfulness

Easy to train

Barking

5 means very vocal

Care and climate

Grooming needs

Shedding

Drooling

Handles cold

Handles heat

How much a Kerry Blue Terrier eats

Illustrative calculations for neutered adults at midpoint breed weights, with food at 370 kcal per 100 g and 100 g per cup. These are not measured breed requirements. Use actual weight, the food label and veterinary body-condition advice.

Dog	Weight	Calories	Dry food
Female, relaxed lifestyle	16 kg	770 kcal	205 g (2 cups)
Female, typical pet	16 kg	870 kcal	235 g (2.3 cups)
Male, typical pet	17 kg	920 kcal	250 g (2.5 cups)
Male, very active	17 kg	1150 kcal	310 g (3 cups)

Full Kerry Blue Terrier feeding guide Calculate for my dog

Care guides for the Kerry Blue Terrier

FeedingKerries are usually good eaters without being obsessive, and most keep a sensible weight with a little attention. 75 cups, in two meals.Read more Puppy growthKerry Blue puppies grow steadily and reach adult height at around 10 to 12 months, then fill out until about 18 months. A typical puppy weighs 5 to 7 kg at 12 weeks.Read more ExerciseKerries need about 60 minutes of activity a day, combining walks with play and brain work. They enjoy fetch, tug, agility, obedience, rally, earthdog trials and even herding instinct tests, a reminder of their farm past.Read more TrainingKerries are bright and learn quickly, but they are independent terriers with their own ideas about timing. Positive, reward-based methods, sessions of five to ten minutes and plenty of variety work best; many Kerries will happily learn 20 tricks and then pretend they have never heard of sit when a squirrel appears.Read more HealthKnown issues in the breed include eye problems such as entropion and dry eye, skin cysts and follicular tumors, a hereditary bleeding disorder called factor XI deficiency and a rare neurological disease that affects young dogs. Responsible breeders screen eyes, use available DNA tests and are open about health in their lines.Read more

Things owners are often surprised by

1Puppies are born black, and the coat gradually clears to blue between about 9 months and 2 years
2A popular legend says the breed descends from a blue dog that swam ashore from a shipwreck off the Irish coast
3The Irish revolutionary Michael Collins owned a Kerry Blue and reportedly wanted it declared Ireland's national dog
4Kerries were all-round farm dogs: ratting, herding sheep and cattle, guarding and retrieving
5The single coat has no undercoat, so loose hair stays in the coat instead of drifting around the house

Kerry Blue Terrier questions

Why was my Kerry Blue puppy born black?

All Kerry Blues are born black. The characteristic blue color develops gradually as the coat clears, usually starting around 9 months and finishing between 18 months and 2 years. The final shade can range from deep slate to pale silver-blue, often with darker points on the head, ears, tail and feet. Patchy color during this stage is normal.

Do Kerry Blue Terriers shed?

Very little. The single coat has no undercoat, and loose hairs tend to stay trapped in the coat rather than falling out around the house. That is why brushing is so important: without it, shed hair tangles into mats. Many people with mild allergies find Kerries easier to live with, although no dog is completely allergen free.

Are Kerry Blue Terriers good with other dogs?

It varies. Many Kerries are friendly with dogs they know, but the breed has a reputation for being quick to respond to challenges, especially from dogs of the same sex. Early and ongoing socialization, calm management and careful introductions help a great deal. Many do best as the only dog or with an easy-going companion of the opposite sex.

How much does grooming a Kerry Blue cost?

Expect a professional groom every 6 to 8 weeks, and prices vary widely by region and groomer experience with terrier trims. Over a year, grooming often costs more than food for this breed. Learning to do maintenance trims yourself can reduce costs, but it takes practice and the right clippers and scissors.

Is the Kerry Blue the national dog of Ireland?

It is often called the national terrier of Ireland, and Michael Collins reportedly championed it for that role. However, Ireland has no official national dog, and the Irish Wolfhound and Irish Setter are also strongly associated with the country. The Kerry's place in Irish history and farm life is well documented either way.

Breeds you might compare

Terrier group

Norfolk Terrier

5 to 6 kg · 12 to 15 years

One of the smallest working terriers, low and sturdy, with folded ears and a notably sociable nature.

Terrier group

Sealyham Terrier

8 to 11 kg · 12 to 14 years

A sturdy Welsh badger terrier created on one Pembrokeshire estate, now rare, charming and quietly comic.

Terrier group

Jack Russell Terrier

5 to 7 kg · 13 to 16 years

A pocket-sized hunter with a huge work ethic that will train you if you do not train it first.

Non-sporting group

Tibetan Terrier

8 to 14 kg · 12 to 15 years

Not a terrier at all, but a shaggy mountain companion once given away as a living good-luck charm.

Non-sporting group

Keeshond

14 to 20 kg · 12 to 15 years

Once the watchdog of Dutch river barges, now a spectacled, fluffy companion with a talent for reading people.

Herding group

Australian Cattle Dog

14 to 22 kg · 12 to 16 years

A compact drover with seemingly endless stamina, built to move stubborn cattle across hot Australian country.