Nebelung: At a Glance
The Nebelung is essentially a long-haired Russian Blue — same plush blue-grey coat, same green eyes, same reserved personality, but with a flowing semi-long coat.
Nebelung Breed History
Trait
| Trait | Nebelung | Russian Blue | Korat |
|---|---|---|---|
| Coat | Semi-long, blue-grey, silver-tipped | Short, blue-grey, silver-tipped | Short, blue-grey, silver-tipped |
| Eyes | Green, large, slightly oval | Green, large, wide-set | Green, large, round |
| Body | Long, muscular, medium | Fine-boned, elegant, medium | Semi-cobby, muscular |
| Personality | Reserved, loyal to one person, quiet | Reserved, gentle, quiet | Active, playful, demanding |
| Origin | USA (1980s) | Russia (Arkhangelsk) | Thailand |
| Rarity | Very rare | Uncommon | Rare |
Nebelung Care Guide
| Brush 2-3x weekly — semi-long coat mats without regular care | |
| Respect their shyness — bonds deeply with one person, aloof with strangers | |
| Provide quiet spaces — easily stressed by noise and chaos | |
| Expect slow warm-up — may take weeks to trust new people | |
| Keep indoors only — reserved nature makes them vulnerable outside | |
| Force socialization — let them approach on their own terms | |
| Skip grooming — semi-long coat needs regular brushing | |
| Expect a social butterfly — reserved and selective with affection |
The name 'Nebelung' comes from the German 'Nebel' (mist/fog) plus the suffix '-ung' from the Nibelung saga. It describes the cat's shimmering silver-tipped blue coat that looks like mist swirling around their body.
Nebelungs are extremely sensitive to environmental changes. Moving furniture, new people, or loud noises can cause stress-related health issues (cystitis, overgrooming). They thrive in calm, predictable homes with a consistent routine.
The Nebelung is essentially a long-haired version of the Russian Blue -- same blue-gray coat, same green eyes, same reserved and loyal personality -- but with a silky medium-long coat that gives it an almost ethereal appearance (its name comes from the German word for mist or fog). It is one of the rarest recognized cat breeds in North America, developed in Colorado in the 1980s from longhaired blue cats, and is still rare enough that most cat owners have never seen one in person. For owners who love the Russian Blue temperament but want a more dramatic coat, the Nebelung is the direct answer.
Development: from accidental litter to recognized breed
The Nebelung began in 1984 when Cora Cobb of Denver, Colorado bred a black domestic shorthair with a longhair male and produced blue kittens with medium-long coats. Two siblings, Siegfried and Brunhilde, became the foundation of the breed. Cobb worked with the University of Colorado's genetics laboratory to develop a breed standard, and TICA granted The International Cat Association recognition to the Nebelung in 1987. CFA recognition followed. The breed's gene pool remains small, and outcrossing to Russian Blues is permitted by some registries to maintain genetic diversity.
Physical description
Nebelungs have a long, muscular body -- longer than most domestic cats -- with a fine-boned structure that gives them an elegant appearance. Males weigh 10 to 16 pounds; females 7 to 11 pounds. The double coat is blue-gray with silver tipping that creates a shimmering appearance in good light. Coat length is medium-long with a plumed tail and a ruff at the chest. Eyes are vivid green, changing from yellow-green in kittens to vivid green by age 2. The coat requires brushing 2 to 3 times weekly to prevent matting; seasonal shedding periods need daily attention.
Personality: selective loyalty and long adjustment periods
Nebelungs are devoted to their chosen people and reserved with strangers. They typically choose one or two individuals in the household for deepest bonding and are cautious with visitors -- often hiding when unfamiliar people arrive and emerging only when the person has been present long enough to be assessed. This is not shyness or a problem to be fixed; it is a consistent breed characteristic. They are playful, enjoy interactive toys and puzzle feeders, and become deeply attached to household routines. Changes in routine (new furniture, schedule changes, new animals) cause temporary stress that resolves over days to weeks.
Health considerations
Nebelungs do not have documented breed-specific genetic diseases beyond what affects domestic cats generally. Given their close relationship to Russian Blues, owners should be aware that Russian Blues have a higher-than-average tendency toward hypertrophic cardiomyopathy (HCM) in some lines -- annual cardiac auscultation and echocardiography screening every 2 to 3 years is reasonable for Nebelungs over age 5. Bladder stones (oxalate and struvite) occur in cats generally and can be diet-related. Weight management is important -- Nebelungs are food-motivated and can gain weight easily if fed ad-lib dry food without portion control. Dental care: annual dental exams, home brushing 2 to 3 times weekly, and dental treats reduce periodontal disease risk. Lifespan: 15 to 18 years is typical for a well-cared-for Nebelung.
Finding a Nebelung
Nebelungs are rare enough that reputable breeders may have waiting lists of 6 to 12 months. TICA's breeder directory is the primary resource. Rescues occasionally have Nebelungs listed -- they are sometimes misidentified as long-haired Russian Blues by shelter staff. Given the breed's small global population, buyers may need to travel or have a kitten shipped from a reputable breeder in another state.
Sources: TICA Nebelung breed standard and history; Cornell Feline Health Center HCM screening guidelines; CFA Nebelung breed committee documentation; Nebelung breed development history from TICA official records.