Sporting group

Irish Water Spaniel

The clown of the spaniel family — curly, clever and built for cold water.

Irish Water Spaniels are the tallest spaniels, with a liver-coloured curly coat, a topknot and a thin “rat tail”. They are playful, intelligent and loyal, but often reserved with strangers and in need of plenty of exercise.

Height
21–24 in53–61 cm
Weight
45–68 lb20–31 kg
Life expectancy
12–13 years
Size
Large
Group
Sporting
Origin
Ireland

Coat: Dense, crisp ringlets; smooth face and a distinctive “rat tail”. Colours: Solid liver.

At a glance

Exercise Requirement4.0 / 5
20-30 min gentle walk2+ hours intense stamina
Indoor "Off-Switch"3.0 / 5
Restless / constantly searching for actionInstantly curls up and relaxes indoors
Trainability3.5 / 5
Strong independent thinkerEager biddable student
Mental Stimulation4.0 / 5
Content with routineNeeds a job or creates mischief
Affection Level4.0 / 5
Polite distanceConstant lap snuggler
Stranger Friendliness2.5 / 5
Naturally aloof / watchfulGreets every stranger as best friend
Child Patience & Safety3.5 / 5
Prefers quiet adultsRemarkably sturdy & patient
Other Dog Friendliness3.5 / 5
Strong solo-dog preferenceLoves pack play and multi-dog homes
Prey Drive3.5 / 5
Ignores crittersHigh pursuit instinct / fence chaser
Vocalization & Barking3.0 / 5
Nearly mute / quietWatchful alarm barker or howler
Shedding Level1.5 / 5
Minimal to non-sheddingHeavy year-round fur shedding
Grooming Burden4.0 / 5
Wash & wear coatDaily brushing + salon visits
Drool Tendency1.5 / 5
Dry-mouthedRequires dedicated slobber towels
Apartment Suitability2.5 / 5
Needs acreage or private runThrives in urban elevator apartments
Beginner Friendliness2.5 / 5
Demands experienced handlerIdeal forgiving companion for first-timers
Owner Demand Level3.0 / 5
Very forgiving for novicesRequires skilled firm handling

Ratings describe typical dogs of the breed on a 1–5 scale. Individual dogs vary with lines, upbringing and training.

Temperament

IWS are affectionate and comical with their families and love to play and swim. They are smart, inquisitive dogs that enjoy learning, and they often invent their own games.

They are typically wary of strangers and can be protective. Some are stubborn or sensitive. Early socialisation and consistent, positive training help them become confident adults.

Living with a Irish Water Spaniel

Exercise

At least an hour a day of vigorous activity; swimming and retrieving are ideal.

Grooming

Brush and comb the curls weekly and trim every few months to shape the coat. Low shedding but mats form without care.

Training

Clever and quick but sometimes stubborn. Keep sessions varied and fun, with plenty of rewards.

Kids & other pets

Loyal with their own family and good with considerate children. May be reserved or selective with other dogs.

Time alone

Needs company and exercise; boredom leads to barking or chewing.

Home fit

Best suited to a house with secure outdoor space; apartment living is hard on this breed and its neighbours.

Is a Irish Water Spaniel right for you?

Take the Breed Fit quiz to see how a Irish Water Spaniel matches your home, schedule and tolerance for shedding, barking and exercise — or find out which breed matches your personality with Dogsona.

Take the Breed Fit quizTry Dogsona →

Health

With good breeding and care, a Irish Water Spaniel typically lives 12–13 years. These are the conditions most associated with the breed — not a prediction for any individual dog.

  • Hip dysplasia

    Screened parents reduce the risk of joint disease.

  • Hypothyroidism

    An underactive thyroid causing coat and weight problems; managed with medication.

  • Drug sensitivities

    Some IWS react badly to certain drugs, including sulfa antibiotics. Discuss with your vet.

  • Follicular dysplasia

    Patchy hair loss, particularly on the flanks, occurs in some lines.

Ask a breeder for

  • Hip and elbow evaluation
  • Eye examination
  • Thyroid evaluation
  • Cardiac examination

Sources: OFA CHIC breed requirements: Irish Water Spaniel; Irish Water Spaniel Club of America. This is general information, not veterinary advice — talk to your vet about your own dog.

Cost to own

After the first year, expect roughly $1,500–$3,000 a year for food, routine vet care, preventives, insurance and supplies (US estimate).

  • Professional grooming every 6–8 weeks adds roughly $500–$900 a year.
  • Food, medication and anaesthesia are dosed by weight, so every vet visit costs more for a big dog.
  • Pet insurance for a puppy typically runs $30–$60 a month; premiums rise with age and breed risk.
See the full first-year cost breakdown →

History

Curly water spaniels existed in Ireland for centuries, but the modern breed is credited to Justin McCarthy of Dublin in the 1830s, whose dog Boatswain is considered its foundation sire.

The breed was a popular retriever for wildfowlers in Ireland’s bogs and rivers. It was among the earliest breeds recognised by the AKC, in 1884, but has remained uncommon.

Did you know?

  • The Irish Water Spaniel is the tallest of the spaniel breeds.
  • Its thin, hairless-looking tail is known as a “rat tail”.
  • The breed is thought to be related to the Poodle and other old curly water dogs.

Library guides for Irish Water Spaniel owners

Similar breeds

Frequently asked questions

Are Irish Water Spaniels hypoallergenic?
No dog is truly hypoallergenic, but IWS shed very little.
Are Irish Water Spaniels good family dogs?
Yes, for active families. They are playful and loyal but reserved with strangers.
Do they need professional grooming?
Regular combing and periodic trimming are needed; many owners learn to do it themselves.