American Canine Association


Sealyham Terrier


After crossing the West Highland White Terrier, Corgi, DandieDinmont Terrier, Bull Terrier and the Wirehaired Fox Terrier, finally originated the Sealyham Terrier. This rare breed is home to the Welsh and has been around since the 19th century. This breed's first job was pest control, hunting mice and small rodents. Later on this breed started hunting otters, badgers, foxes and other larger prey that were harmful to homes and farms. After World War I, this breed was "The Breed" to be owned by "Hollywood elite" and then became very popular to everyone.


The Sealyham Terrier has many attributes within its appearance in which you can see all of the breeds that it has within its bloodlines. Built rectangular and low to the ground, this breed is solid muscle and have very short legs. The Sealyham terrier should always be under 12 inches in height for both males and females, and weigh no more than 20 pounds. This breed is only available in solid white, which sometimes can have a blonde shade within it. Their coat is medium length, weather resistant and rough to the touch. The Sealyham Terrier carries a square, wedge shaped head forming into a muzzle that has a scissor bite and two firm triangular ears that fold down on either side of their face. This breed only comes with a black nose and two dark brown or black round eyes.


This breed is loving, playful and loyal to its family. Wonderful with children, other pets and elderly as long as it is raised along side them. The Sealyham Terrier is typically reserved with strangers but will still welcome them happily. It is important to socialize your Sealyham to ensure the best personality for your busy life with this pup as it grows. This breed requires positive reinforcement training methods only. Unlike other terrier breeds, the Sealyham Terrier is not as rowdy or hands on. This breed is fairly independent when it comes to being inside of your home, and behaves very well. This breed requires a daily walk and play time to ensure the best personality every day. Suited for both apartment and country living.


Though this breed does not shed, daily brushing is required. It is highly recommended that your Sealyham be professionally groomed about every 6 months.

Special Notes

This breed does best in cooler temperatures, be sure not to keep your Sealyham terrier outside too long in warmer weather. Please fully educate yourself about this breed prior to adding one to your family to ensure you can make a life long promise to your new pup! All dogs originate from wolves (Canis Lupus). Each breed of dog was originally created by mixing different breeds together in an effort to bring forth certain characteristics. Once a breeder has created acceptable “breed characteristics” within their bloodline and these “breed characteristics” have shown to be reliably reproduced in the offspring for three (3) generations, the bloodline may be upgraded from the category of “foundation stock” to “pure-bred”. The same “pure-bred” breed standards vary from different continents, countries, territories, regions, breed clubs, and canine pure-breed registries depending on the goals of their breeders. Dog DNA testing companies can have accurate results for a specific bloodline of a small colony of dogs. However, there are tens of thousands of different bloodlines in the world which have not yet been tested for marker baseline results by Dog DNA testing companies as of 2017. For this reason Dog DNA testing companies do not guarantee the 100% accuracy of their breed lineage results and will also show different marker results for the same pure-bred breed in different continents, countries, territories, regions, breed clubs, and canine pure-breed registries depending on the goals of their breeders.

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