About The Breed

The Devon Rex Breed History & Standard

The History of The Devon Rex

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A cat stretching with front paws extended and back arched

The story of the Devon Rex begins in 1959 in a garden in Devon, England. A woman named Beryl Cox discovered a kitten with an unusually soft, curly coat and named him Kirlee. It was soon determined that Kirlee’s curls were the result of a genetic mutation. At first, it was believed that this mutation was the same as, or related to, that of the Cornish Rex, which had been discovered a few years earlier in Cornwall, England.

To test this theory, Cox bred Kirlee with a Cornish Rex. However, the resulting kittens all had straight coats, revealing that Kirlee’s mutation was different from that of the Cornish Rex. Realizing the uniqueness of Kirlee’s genetics, Cox began a breeding program to preserve his distinctive trait. Kirlee was then bred with a domestic shorthair, producing a litter that included both straight-haired and curly-haired kittens. Through careful selective breeding of Kirlee’s descendants, Beryl Cox ultimately established the Devon Rex breed.

The International Cat Association (TICA) was established in 1979 and accepted the Devon Rex for championship status in the same year. It was also at this time that the names Devon Rex and Cornish Rex were formally chosen to distinguish the two different coat mutations.

Recognition by the Cat Fanciers’ Association (CFA) took longer. The CFA initially held the position that all rex-coated cats should be registered under the already accepted Rex breed, based on the Cornish Rex standard. Although Devon Rex cats could be registered, they were not recognized as a separate breed. Most Devon Rex breeders opposed this policy, resulting in minimal participation in CFA events during that period.

Despite these challenges, the breed continued to gain recognition. In February 1979, the CFA Board unanimously voted to grant the Devon Rex separate breed status, with registration effective immediately. The breed was later advanced to provisional status on May 1, 1981

Often called the “pixies” of the cat world, the Devon Rex is a medium-sized breed with a muscular, balanced build and a soft, curly coat—its signature feature. This unique texture comes from a genetic mutation affecting all layers of the hair, giving the coat its distinctive waves.

The breed’s true hallmark is its unmistakable elfin face: large, low-set ears, prominent cheekbones, a short muzzle, and a slender neck. These features trace back to the original Devon Rex, Kirlee, and create a look that’s instantly recognizable, even from across the room.

Devon Rex cats come in all colors, adding even more variety and charm to this truly one-of-a-kind breed.

Breed Appearance

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Temperament

The Devon Rex is best known for its big personality. Often described as part cat, part dog, and part monkey, Devons are highly social, playful, and deeply people-oriented. They love to be involved in everything you do and will happily follow you from room to room, offering quiet commentary along the way.

Intelligent and curious, Devons learn quickly and often enjoy games like fetching, climbing, and perching—then settling straight into your lap once playtime ends. They’re affectionate companions who thrive on interaction and attention.

True heat-seekers at heart, Devon Rex cats adore warmth and closeness, making laps their favorite place to relax. Constant, charming, and endlessly entertaining, they’re ideal for those who want a devoted, always-present companion.

Two black cats walking on a mirror in front of a fireplace
Two devon rex cats sitting outside on a wooden surface with one cat standing and the other lying down.

Health concerns

The most prevalent health concerns in the Devon Rex include Congenital Myasthenic Syndrome (CMS), Hypertrophic Cardiomyopathy (HCM) and Polycystic Kidney Disease (PKD). Responsible breeders routinely test their breeding cats for PKD and CMS and regularly perform annual echocardiograms to screen for potential heart defects. Devon Rex cats are also prone to allergy-related issues. While allergies have a genetic component, they can often be managed successfully with appropriate diet and care. Reducing the incidence of allergies within breeding lines remains an important goal for many conscientious breeders.

The Breed Standard

Faults, Penalties & Disqualifications

Devon Rex cats may be penalized for traits that detract from correct breed type, including a narrow, long, or overly domestic head; ears that are small, set too high, or flared; a misaligned bite; a short, bare, or bushy tail; a straight or shaggy coat; or the presence of bare patches. Extensive baldness results in withholding of all awards. Disqualifications include weak hind legs; blue or odd eyes in cats that are not dominant white, white, or pointed; and serious structural or genetic faults as defined by show rules, including missing tail (unless permitted by the standard). Temperament is also critical—while fear or vocal protest is acceptable, any cat showing aggression, intent to harm, or definite challenge is disqualified.

For the full breed standard, click the TICA icon