A Guide to the Sealyham Terrier, An Affectionate Hunter Why This Breed Is Good in Any Weather

Sealyham Terrier photo
Small Breed X-Small Breed Deafness Skin Allergies Sealyham Terrier

Is the Sealyham Terrier Right For You?

  • 1 Sealyham Terriers are small and compact with a voluminous spirit, inquisitiveness, and good cheer.
  • 2 The whole family will benefit from the adoption of a Sealyham Terrier puppy.
  • 3 These dogs are comfortable in the house but require lots of physical and mental stimulation.


The Sealyham Terrier was bred to go after small game like badgers, foxes, and otters. They were bred white to help hunters better spot their dog. A crossbreed of the Dandie Dinmont, West Highland, Wirehaired Fox, and Bull Terriers, along with a splash of Corgi, the Sealyham Terrier was first bred in the middle of the 19th century in Wales, and wasnโ€™t officially recognized until 1923.

Quick Facts

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    Between 12 and 15 years

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    Hair Length


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    Male Height

    9 inches - 11 inches

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    Male Weight

    22 lbs - 25 lbs

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    Female Height

    9 inches - 11 inches

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    Female Weight

    19 lbs - 24 lbs

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    Litter Size

    Up to 3 pups


A loyal and affectionate breed of dog, the Sealyham Terrier is an excellent hunter, a good watchdog, and not as aggressive as other Terriers. As the Sealyham Terrier is independent by nature, they can be difficult to train. They should be given obedience training and opportunities to socialize at a very early age or they may engage in excessive barking. These dogs are extremely friendly and companionable with the family and love to be in the company of older children. They remain reserved and aloof in the presence of strangers and other dogs. The Sealyham Terrier can live in an apartment and they are experts in catching mice and rats, and other pests..


The Sealyham Terrier generally has a white coat, but can also be found with a slight yellow or light brown hue. Occasionally they might have brown markings around their head and ears, known as badger markings (pictured above).

Health Concerns

The average life expectancy of Sealyham Terriers is around 15 years. Some of the major problems which affect the Sealyham Terrier are:


The Sealyham Terrier has a round head, floppy ears, and a tuft of hair in between that can grow down past their eyes if not cut. Despite their size, the Sealyham has a strong body and jaws. Their fur is wiry and somewhat long, helping them keep warm during winter.

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