Cornish Rex Cat
Updated July 19, 2026
The Cornish Rex is a light, muscular, high-energy breed with an arched body, enormous ears, and a uniquely soft waved coat composed mainly of down hairs.
Highly energetic, People-oriented, Excellent jumper, Trainable and food-motivated, Kittenlike into adulthood
6-10 pounds
11-15 years
At a Glance
Maintenance Level
Affection Level
Energy Level
Good with Kids
Vocalization Level
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About Cornish Rex Cat
The Cornish Rex is a light, muscular, high-energy breed with an arched body, enormous ears, and a uniquely soft waved coat composed mainly of down hairs.
Coat Length
Short Hair
Breed Group
Rex
Weight
6-10 pounds
Great For
What Makes Cornish Rex Cats Special
The Cornish Rex combines a greyhound-like arched body with a fragile marcel-waved coat and an irrepressibly playful, heat-seeking personality.
Its light frame is firmly muscled, allowing remarkable speed and jumping despite a delicate visual impression.
Cornish Rex Cat History & Origin
The breed began in 1950 when a cream male kitten with a tightly waved coat, Kallibunker, was born to a farm cat named Serena on Nina Ennismore's farm in Cornwall. Breeding demonstrated a recessive mutation, and careful outcrosses expanded the very small foundation while preserving the coat.
Kallibunker is the recognized foundation cat of the Cornish Rex.
The name combines Cornwall with Rex, a term borrowed from curly-coated rabbits.
Test breeding with Devon Rex showed the two breeds' curly coats are genetically distinct.
Cornish Rex Cat Characteristics
Individual Variation
Cats are individuals and not all cats, even those of the same breed, will exhibit all the same qualities.
Care Requirements
Exercise Needs
Grooming Needs
Shedding Level
Cornish Rex Cat Appearance
A small egg-shaped head, very large ears, Roman profile, high-arched back, tucked waist, and long legs create a distinctive racy silhouette.
The close coat forms even waves over the body and lacks the normal protective layer of substantial guard hairs.
Physical Features
Ears
Very large, broad at the base, upright, and set high on the head.
Eyes
Medium to large, oval, and slightly slanted; color should suit the coat.
Nose
Prominent and Roman in profile, with a convex curve rather than a stop.
Coat & Build
Tail
Long, slender, flexible, and tapering, covered in close waves.
Cornish Rex Cat Temperament
The Cornish Rex combines a greyhound-like arched body with a fragile marcel-waved coat and an irrepressibly playful, heat-seeking personality.
Its light frame is firmly muscled, allowing remarkable speed and jumping despite a delicate visual impression.
Temperament Traits
Good With
Health
Cornish Rex cats are often active and long-lived, but responsible breeding pays attention to cardiac, orthopedic, skin, and coat health. Their sparse coat also reduces protection from temperature and sunlight.
Common Health Issues
Preventive Care
Ask about cardiac and patellar screening and coat health in the family line, inspect skin and paws regularly, maintain dental care and lean weight, and protect the cat from direct sun, cold drafts, and unsafe heating surfaces.
Caring for Your Cornish Rex Cat
Grooming Requirements
The delicate waved coat needs gentle handling. Heavy brushing can break the fine hairs or produce bare areas, while ears and nail folds may collect skin oil.
Brushing
Use fingers or a very soft brush only when needed; many Cornish Rex cats require no routine brushing beyond gentle hand grooming.
Bathing
Bathe when skin oil becomes noticeable, which may range from occasional to every few weeks. Use a mild cat-safe shampoo, rinse completely, and dry and warm the cat immediately.
Eye Care
Check the eyes weekly and wipe minor discharge with a separate soft, damp cloth for each eye; persistent irritation needs veterinary attention.
Nail Care
Every 1-2 weeks, with gentle cleaning of oily debris around the nail beds.
Essential Grooming Tools
Exercise & Play
Cornish Rex cats are exceptionally playful, fast, and acrobatic. They need vigorous daily exercise, height, retrieval games, and frequent social interaction.
Daily Requirements
Provide about 45-60 minutes of active play daily, divided into several sessions, plus free access to stable climbing structures.
Mental Stimulation
Rotate puzzles and toys, teach tricks and cooperative care, and provide warm high perches. Many Cornish Rex cats remain inventive and kittenlike throughout adulthood.
Recommended Activities
Nutrition & Feeding
Feed a complete-and-balanced life-stage diet. This active breed may have a strong appetite, but intake must still be matched to body condition and health.
Daily Amount
Use the food manufacturer's feeding guide as a starting point, measure the daily ration, divide it into two or more meals and play rewards, and adjust with a veterinarian to maintain a lean, muscular body.
Special Considerations
Sparse coats can increase heat loss, but that does not justify unrestricted feeding. Monitor weight and muscle, offer wet food and multiple water stations, and investigate unusual hunger or weight change.
Living Environment
Space Requirements
Can thrive in an apartment or house with tall stable cat trees, long play routes, scratching surfaces, warm beds, and frequent household involvement.
Climate Preferences
Indoor climate control is important because the sparse coat provides little insulation or sun protection. Prevent cold exposure, direct intense sun, and burns from heaters or heating pads.
Ideal Lifestyle Match
Best for an active household that welcomes an acrobatic, mischievous companion. Long isolation and a minimally enriched home are poor matches.
Colors & Patterns
Most colors and patterns are accepted; the even wave and coat quality matter more than any single color.
Solid Colors
Patterns
Eye Colors
Gold, green, hazel, blue, aqua, or odd-eyed as appropriate to coat color
Fun Facts About Cornish Rex Cat
The foundation cat Kallibunker was born in Cornwall in 1950.
Rex in the breed name was borrowed from curly-coated rabbit terminology.
The coat is formed mainly from fine down hairs.
The Cornish Rex and Devon Rex have different coat mutations.
Sparse hair does not make the breed hypoallergenic.
The arched body is firmly muscled despite its delicate appearance.
Heavy brushing can break the fine coat and produce bare areas.
Many Cornish Rex cats retain intense kittenlike playfulness throughout life.
Training Tips
Frequently Asked Questions
Is the Cornish Rex hypoallergenic?
No cat breed is hypoallergenic. Cornish Rex cats shed relatively little visible hair, but they still produce allergens in saliva and skin secretions.
Should a Cornish Rex be brushed?
Only very gently and when needed. The fine waved hairs break easily, so hand grooming or an extremely soft brush is safer than vigorous combing.
Is the Cornish Rex related to the Devon Rex?
They are distinct breeds caused by different mutations. Early test matings produced straight-coated kittens, demonstrating that the coat genes were not the same.
Specialized Care Guides
Kitten Care
Provide extensive positive socialization, introduce skin, ear, nail, dental, and carrier care gently, prevent high falls, and teach appropriate outlets for climbing, retrieving, and food motivation.
Senior Care
Arrange veterinary checks at least every 6-12 months as advised, monitor heart, patellas, teeth, kidneys, skin, weight, and mobility, and preserve warm accessible resting places and gentle games.
First-Time Owner Tips
Suitable for an engaged first-time owner who can provide substantial play, warmth, gentle coat and skin care, and verified cardiac and patellar history.
Looking for a Cornish Rex Cat?
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