By Dr. Watuwa JamesDr. James Watuwa Last updated: 27th November 2023

Lucas Terrier

Bred for its sweet temperament, the Lucas Terrier is a breed of small, sturdy, working-terrier like dogs produced as a result of a cross between an existing Lucas Terrier and a small Sealyham Terrier or a Norfolk Terrier. The Lucas Terrier’s physical attributes include a broad skull, deep muzzle, black nose, dark, almond-shaped eyes, medium-sized, V-shaped ears, strong neck, broad shoulder blades, moderately broad chest, straight legs, and the tail is set neither too low nor too high.

Lucas Terrier Pictures

Quick Information

CoatMedium length, fairly harsh, double, weather resistant
ColorBlack and tan, saddle and tan, white, gray, or just tan
Breed TypeCrossbreed
Lifespan12-15 years
WeightMales: 14-20 lbs
Females: 11-17 lbs
HeightMales: 10-12 in
Females: 9-11 in
TemperamentFriendly, eager to please, intelligent
Litter Size3-5 puppies
Good with ChildrenYes
Country Originated inEngland
Competitive Registration/ Qualification InformationLTCUK, LTCA, DRA

Video: Lucas Terrier Playing with Toys


The 4th Baronet, Sir Jocelyn Morton Lucas was a twentieth-century British breeder who crossed a Norfolk Terrier with one of his Ilmer Sealyham Terriers, which were somewhat shorter in stature than the normal show Sealyhams of that era. The cross produced was named after Sir Jocelyn and several pedigrees of Lucas Terriers were developed since the 1940s.

When Sir Lucas became older, his kennels were run and controlled by Mrs. Enid Plummer. A few years before the death of Sir Jocelyn Lucas, Plummer went to Cornwall with the remaining dogs and continued the breeding program until her death in 1986.

After the death of Mrs. Plummer, the task of developing the breed was taken by Miss Jumbo Frost who played an important role in founding the Lucas Terrier Club, setting up breed standards, and widening the gene pool.

In 1999, a separate club called the Sporting Lucas Terrier Club was established for registering and promoting a type of terrier that has genes from Lucas Terrier and other breeds in its make-up.

Temperament and Behavior

Known for its biddable personality, the Lucas Terrier is a great companion that is always willing to please its owner. When indoors it is calm, quiet, and gentle and so is an absolute joy to live with.

Because of its Terrier ancestry, it is likely to bark and go after small animals such as a squirrel, chipmunk, and rabbit, as well as moving objects like a vehicle.

The Lucas Terrier is naturally good with kids but puppies can have a lively disposition, and so babies and toddlers should never be left unsupervised. It does not usually show aggression towards familiar people and dogs.



The moderately energetic Lucas Terrier loves to go on regular walks and enjoys a romp in a large, fenced yard. You may also let your dog play with balls and plush toys.


Its grooming regimen generally involves weekly brushing and occasional bathing. Hand stripping may help in ridding your Lucas Terrier’s double-coat of dead hairs.

Health Problems

It is a sound and healthy breed, and no genetic health issues have been reported up until now.


Since it is an intelligent and obedient dog, it can quickly learn to respond to positive, reward-based training.

Regularly walking your dog around a public place will help it in becoming accustomed to the people around it. By taking different routes, your dog will get the chance to meet new people and pets. Anytime your Lucas Terrier succeeds in interacting positively with people or other dogs, give it a tasty treat.

Managing its chasing instinct
Chasing a fast-moving object is natural behavior for your Lucas Terrier, and so you should try to manage its preying instinct through other activities. Try some dog sports like Disc Dog, throwing a ball or Frisbee, or exercising with a fleece lure toy. Make sure that you teach your Lucas Terrier a command for starting and stopping the game so that it can associate the word with chasing an object.


You may feed your Lucas Terrier quality dry food, as it will help in improving its dental health. If you wish to make its food at home, you may include a mix of vegetables like potatoes and carrots with some oats and brown rice.

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