The Mudi swivels its ears independently like radar dishes, according to the FCI standard. Hungarian shepherds favour this medium-sized, wavy-coated dog for large, difficult livestock, and some even take it on driven wild-boar hunts.
| FCI | Group 1 (Sheepdogs and Cattledogs), Section 1 Sheepdogs, Standard No. 238, without working trial |
|---|---|
| Country of origin | Hungary |
| Size (height at the withers) | Males 41 to 47 cm (ideal 43 to 45 cm), females 38 to 44 cm (ideal 40 to 42 cm) |
| Weight | not specified in the FCI standard |
| Life expectancy | no reliable study figure found (N/A) |
| Coat | short and smooth on head and fronts of legs; elsewhere uniformly strongly wavy to slightly curly, dense, glossy, approximately 3 to 7 cm; feathering on forearms, thighs and tail |
| Colours in the standard | black, white, fawn (beige to red), ash (blue), liver (brown), ash brown and Cifra (merle) in these colours; small white markings tolerated but not desired |
A Hungarian herder with upright ears
According to the standard, the Mudi developed in the 18th and 19th centuries from crosses between Hungarian herding dogs, most probably with various German herding dogs with erect ears. The FCI definitively recognised it on 25.03.1963. Its head is instantly recognisable: wedge-shaped, with an alert, cheerful expression that should never look shy or aggressive.
Learns quickly, announces everything
Extremely trainable, lively, courageous, watchful, keen to work, attentive and adaptable: that is the standard’s description. It also calls it an excellent guard and alarm dog. Take that literally. A Mudi reliably announces visitors, postmen and unfamiliar noises. Teach early that one alert is enough and reward quiet behaviour; barking then stays manageable.
Small enough for the house, too clever for the sofa
The standard says its relatively short coat and adaptability make it easy to keep indoors, where it is an amiable housemate. It still needs plenty to do. Agility, herding training, obedience, tricks and scent work suit its quick mind, alongside daily exercise at a lively pace. Given no work, it invents its own jobs.
Curls without the groomer
The standard says the wavy coat should not mat; a tendency to felt is even a disqualifying fault. For you, that means thorough weekly brushing, checking breeches and tail feathering more closely; neither clipping nor stripping is necessary. A naturally short tail is not a fault in the Mudi, either.
Cifra: beautiful, with rules
The standard calls the merle pattern Cifra. In a sample of 123 tested Mudis from eleven countries, 61,8 per cent carried classic merle, 13,8 per cent the harlequin variant, 17,9 per cent showed mosaicism and one dog (0,8 per cent) was double merle. The authors warn about hidden merle carriers whose pattern is concealed by red or fawn coats: they can unintentionally produce double-merle puppies with eye and hearing damage (Pelles et al. 2019). A review also lists the Mudi among merle breeds and refers to a DNA test (Strain 2015). Read more in the Australian Shepherd entry. No reliable lifespan study exists for the Mudi.
Who makes a Mudi happy
Active people and families who enjoy training, want an alert medium-sized dog and can live with some barking. Committed first-time owners can manage too with good guidance.
When to keep looking
If you live in a poorly soundproofed block of flats, want a dog that sleeps through the day or have little time for activities. An under-stimulated Mudi becomes a constant alarm, commenting on every stairwell noise.
The breed quiz shows whether an alert herding dog of this size is your match; find much more in the book “Welcher Hund passt WIRKLICH zu dir?” (book in German). If a puppy is joining you, the free Puppy Starter Pack is a useful companion. Capture your curly Mudi as a portrait from your own photo, for example as a poster in a wooden frame.
Further reading
- Australian Shepherd: what MDR1 and merle mean for you
- Border Collie: when the cleverest dog has no job
- How much sleep a puppy needs
Sources, accessed on 20.10.2026: FCI-Standard Nr. 238 Mudi (fci.be, English version dated 27.10.2023; original language German according to the FCI, no German version published); FCI breed page No. 238 (fci.be); Pelles Z et al., Merle allele variations in the Mudi dog breed and their effects on phenotypes, Acta Veterinaria Hungarica 2019; Strain GM, The genetics of deafness in domestic animals, Frontiers in Veterinary Science 2015.
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