Sealyham Terrier: Special Rare-breed Edition
Sealyham Terrier: Special Rare-breed Edition

See the BOOKS & MORE section for more Sealyham merchandise





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Breed Registries:

Note: The breed registries indicated above are the most recognized all-breed registries. The breed may also be recognized by other registries not indicated here. For further details about dog registries, please see the document: Dog Breed Registries in North America.

* — The FCI is the World Canine Organization, which includes 84 members and contract partners (one member per country) that each issue their own pedigrees and train their own judges. The FCI recognizes 339 breeds, with each being the "property" of a specific country. The "owner" countries of the breeds write the standards of these breeds in co-operation with the Standards and Scientific Commissions of the FCI, and the translation and updating are carried out by the FCI. The FCI is not a breed registry nor does it issue pedigrees.


Great Britain


10.5 inches (27 cm)


23 to 24 lbs (10-11 kg)

Breed Profile:

The Sealyham originates from Wales and was developed to be the ultimate working Terrier — fast and fearless as a hunter, and tough and agile enough to slip down a badger hole. It is believed that the Sealyham was developed from a combination of the Pembroke Welsh Corgi for his size, the Cheshire Terrier for his gameness and colour, the Dandie Dinmont Terrier for his courage, the Wire Fox Terrier for his coat type, and the West Highland White Terrier to reduce his size and strengthen the colour. Both the American Kennel Club and the Kennel Club (U.K.) officially recognized the breed in 1911.

The Sealyham is an outgoing and friendly dog, yet a good watchdog who is devoted and loyal to his family. He has a "big-dog" bark, is keen, alert, determined, and has all the true Terrier characteristics. He does, however, generally have a calm and relaxed disposition. He is known to be very good with children due to his playful attitude and ougoing personality. Because the Sealyham was bred to work in packs, he also usually gets along well with other dogs of roughly the same size.

His outercoat is hard and wiry with a soft, dense undercoat. His colouring is all white and he may have lemon, tan, or badger markings on the head and ears.

Health Issues

If you are considering the adoption of a Sealyham Terrier puppy, or any breed, it is very important to be selective in choosing a responsible and reputable breeder. Ensure that the prospective puppy's parents have all health clearances. Breeding of any dog should not be done until after they have been proven to be free of evidence of significant hereditary diseases. (For more information on selecting a breeder, see the articles on the main Breed Listing and Breeders page.)

Additional Health Resources:

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Breed Standards

Grooming Information

The Sealyham's double coat requires regular maintenance. The "show coat" is regularly hand stripped with the long and dead hairs plucked out by hand. A "pet coat" can be clipped on the head and topcoat, and scissoring on the legs and face. Regular brushing is required to keep the coat tangle and mat free.

  • Grooming — This section of the Canada's Guide to Dogs website includes tips, articles and information covering all aspects of dog grooming along with a listing of Groomers from across Canada.

Training Resources

  • Training — For training information, see this growing section of the Canada's Guide to Dogs website for tips, articles, as well as listings of training centres across Canada.

Training Tools & Equipment
Choose from a wide variety of items from

Additional Information

  • Clubs, Sports & Activities — For information on the many sports and activities you can get involved in with your dog.
  • Working Dogs — The Working Dogs section of the Canada's Guide to Dogs website provides information and listings of organizations that are involved in various dog jobs, such as Guide Dogs, Therapy Dogs, Police Dogs, Protection Dogs, and much more.

Select from the following links to view Breeder listings; Breed Clubs; Rescue Organizations; as well as Books and other Merchandise specific to the breed:

Breeders  /  Breed Clubs  /  Rescues  /  Books & More