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Sealyham Terrier

The Sealyham Terrier is a robust, rectangular built dog, slightly longer than they are tall with a long, harsh wire coat. The ears are attractively dropped forwards and when stripped and tidy, they feature an appealing beard and eyebrow combination that gives them a workmanlike appearance. 

12 – 14 years
9kg for males and 8kg for females
White or white with coloured markings usually found over the ears/eyes and around the tail
UK Kennel Club Groups
The need-to-know
  • Dog suitable for owners with some experience
  • Extra training required
  • Generally healthy breed
  • Enjoys active walks
  • Enjoys one to two hours of walking a day
  • Small dog
  • Some drool
  • Requires grooming every other day
  • Chatty and vocal dog
  • Barks and alerts to visitors/anything unusual
  • Could have issues with unknown dogs but gets along with known dogs
  • May need additional training to live with other pets
  • May need additional supervision to live with children
  • Needs a small garden
  • Can happily live in the city
  • Can be left occasionally with training
Generally healthy breed

The Sealyham Terrier breed can be prone to: 
- Primary lens luxation which is a condition where the lens moves from it's normal position in the eye which will result in vision loss and can cause pain.
- Total retinal dysplasia which is a condition where the back of the eye does not develop properly, which can lead to complete blindness.
Priority Kennel Club health schemes and testing: 
- DNA test for primary lens luxation which tests whether or not a dog has the potential to be affected by this condition.
- Eye screening scheme 


Full of character, the Sealyham is a ‘gentleman’ (in the personable yet slightly disreputable sense), game and fearless but loving and friendly towards those they know. Alert and quick witted, they will bark to attract attention, and are unlikely to hold back should another dog pick a quarrel! They make an excellent companion for those who understand terriers and how to get the best out of them! 

Did You Know?

  • Whilst many terriers can claim to exist due to the whims and desires of the noble classes, the Sealyham Terrier can lay claim to some very interesting human ancestry indeed! Their founder, Captain John Tucker-Edwardes was descended from the 16th century Admiral Thomas Tucker R.N., who it is claimed killed the famous Pirate Blackbeard. Whether that is true or not, he did go on to capture various Spanish ships laden with rich cargoes, meaning either he was a privateer (legal pirate) or simply a pirate himself! 
  • Subsequently, the Sealyham has been owned by a very long line of royals and film-stars, including the Queen Mother, and Alfred Hitchcock. Hitchcock and two of his Sealyham’s had a cameo role in his 1963 film ‘The Birds’. 
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