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Sealyham Terrier

A sturdy Welsh native bred to work hard alongside Otterhounds

This Welsh breed takes its name from the village where it originated, in Pembrokeshire on the river Seal. The village squire Captain John Owen Edwardes who developed the breed lived in Sealyham Manor. Captain Edwardes developed a strain of short legged white terrier using predominately white terriers of Jack Russell type with an infusion of dogs of similar type like the West Highland White and Dandie Dinmont and Bull terriers. Edwardes’ aim was to develop a breed to work alongside his Otterhounds and go to earth after otter, and also work on badger, fox and polecats. He was ruthless in his selection of stock: dogs which showed a reluctance to stand their ground or to kill were shot. The first breed club was established in 1908 and the breed was recognised by The Kennel Club (UK) in 1911. The Sealyham Terrier became very popular as show dogs and companions in the 1930’s and 40’s but has dwindled in population in recent years, perhaps because of the requirement for the maintenance and trimming of the coat.

The Sealyham Terrier is a proud, compact sturdy little dog that makes an ideal companion for young and old in today’s modern world, adapting well to both city and country living. They expect the attention which they consider their due and enjoys a brisk walk to investigate the new smells in the neighbourhood. They are very inquisitive and a delightful clown and surveys the world with supreme self-confidence and good humour. Sealyhams are most charming and lovable, giving their owners endless love and devotion. While devoted to their family, they is never servile, even when being disciplined. They will rarely, if ever, cower, for they are possessed with an indomitable spirit and immense pride. They own, they are not owned by their family. Once they have taken their place in the household, they are virtually assured of equal status. The Sealyham’s temperament has remained one of their most distinctive traits – friendly and lovable, responsive to human contact, a constant, loyal and devoted companion.

Read more about the history of this breed – HERE


Most of these stats are from the The Kennel Club UK. You can view stats from kennel clubs around the world at the links below, which may have different standards and classifications.

Group – UKTerrier
Bred ForHunting, Companion
Rare BreedYes
Country of OriginWales. UK
TemperamentAlert, Friendly, Fearless
Exercise NeededUp to 1 hour a day
Size of Home NeededSmall
Height at Withers – Females31 cm / 12 in
Height at Withers – Males31 cm / 12 in
CoatLong and Wiry
ColourWhite with various colour markings
Life Expectancy10 – 14 years
  • They can be combative with other dogs and is best with older, considerate children.
  • Famous past owners include Gary Cooper, Jane Russell, Elizabeth Taylor, Alfred Hitchcock an Cary Grant.
  • These dogs carry their tails upright when alert or excited, which looks really cute!
  • Sealyham Terriers have a high prey drive and as such, care should always be taken as to where and when a dog can run off the lead, more especially if there is livestock and/or wildlife close by.
  • The Sealyham Terrier has a double coat that consists of a long, hard and wiry outer coat and a softer, denser undercoat. They are quite high maintenance on the grooming front because they need to be brushed every day paying particular attention to the longer hair on their legs, bellies, faces and tails where knots and tangles tend to form all too easily.


Breed standard varies throughout the world, these links will inform you of those standards and give further information about Sealyham Terriers.


Click on any picture below to view it larger and in a slideshow, it’s worth it! 😃


Enjoy this video about Sealyham Terriers, you can view the entire playlist of videos about this breed on our YouTube Channel by clicking the button below:


Here’s some websites specifically dedicated to the Sealyham Terrier breed, click to view them. I am not affiliated with any of these sites, they’re just here for further information. Please note I will not advertise breeders on this site and as many websites dedicated to a specific breed are run by breeders, sometimes there’s fewer sites listed here.

Thanks for reading!

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