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Cimarrón Uruguayo
Working breed from Uruguay
Breed overview
Reviewed · Database recordAbout the Cimarrón Uruguayo
The Cimarrón Uruguayo is a large, powerful molossoid breed with a robust bone structure and athletic build. It has a short coat that comes in brindle or fawn. Known for its balanced temperament, this breed is described as courageous, intelligent, loyal, protective, calm, and confident. It is categorized in the Working group and originates from Uruguay. Recognition status varies by registry. Estimated adult weight ranges from 38 to 45 kg for both males and females, and estimated adult height ranges from 58 to 61 cm for both sexes. The estimated lifespan is 10 to 12 years.
Quick facts
Cimarrón Uruguayo at a glance
Sizelarge
Breed groupWorking
OriginUruguay
Lifespan10–12 years
Male weight38–45 kilogram
Female weight38–45 kilogram
Male height58–61 centimetre
Female height58–61 centimetre
Origin and history
Where the breed comes from
The Cimarrón Uruguayo descends from dogs brought by Spanish and Portuguese colonizers. It developed as a feral breed and was shaped by natural selection in the wild. The breed was used for herding cattle, guarding property, and hunting large game. It was officially recognized in Uruguay in 1989 and is recognized by the FCI. However, the exact timeline and details of its early development are not fully documented, and some historical claims may be uncertain.
Physical characteristics
Structured dataSize, build and coat
Female
38–45 kilogramAdult weight58–61 centimetreAdult heightCoat typesShortCoat colorsBrindle, FawnRecognitionvaries by registryData methodai assisted draft
Temperament
Typical breed tendencies
Courageousintelligentloyalprotectivecalmconfident
Breed tendencies are general guidance. Individual behavior depends on genetics, socialization, training, health and environment.
Exercise, training and maintenance
1–5 methodologyDaily care profile
Higher daily exercise demand
Typically responsive to training
Lower coat-maintenance demand
Moderate compared with other breeds
Family suitability
Home and household fit
Supervise every dog–child interaction.
Introductions and socialization still matter.
Exercise, enrichment and noise tolerance affect fit.
Climate suitability
Modelled tendency · low confidence
Modelled tendency · low confidence
Modelled tendency · low confidence
A general morphology-based tendency. Individual dogs still require shade, shelter, water, acclimation and weather-appropriate activity. Method: climate-morphology-v1.
Health overview
Veterinary sources requiredHealth considerations
No Cimarrón Uruguayo-specific screening programme or peer-reviewed disorder-prevalence study is currently attached to this profile. This is not evidence that the breed has no health risks. Owners should use routine preventive veterinary care and discuss screening appropriate to the individual dog's history, examination and family line.
Veterinary disclaimer: This profile is educational and does not replace examination, diagnosis or treatment by a veterinarian.
Feeding overview
Nutrition and feeding
Research in progress
Reviewed feeding guidance will appear after an approved source is imported and editorially reviewed.
Decision support
Potential advantages and challenges
Potential advantages
- Typically responsive to consistent training.Supported by trainabilityScore: 4
- Can be a strong family match when socialized and supervised.Supported by childSuitability: 4
- Commonly described as loyal.Supported by temperaments.loyal: true
Potential challenges
- Higher daily exercise and enrichment needs may not suit every household.Supported by energyScore: 4
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Growth chart
Cimarrón Uruguayo puppy growth
Modeled estimates
Open interactive chart From puppy weight to adult size
Compare male and female growth, check weight by age and estimate mature size.
Adult male weight38–45 kilogramAdult female weight38–45 kilogramGrowth modeladult-range-size-model-v1
Preview only. Open the complete chart to adjust age, current weight and measurement units.
Frequently asked questions
Common questions
What is the size and lifespan of a Cimarrón Uruguayo?
The Cimarrón Uruguayo is a large breed. Estimated adult weight is 38–45 kg for both males and females, and estimated adult height is 58–61 cm for both sexes. The estimated lifespan is 10–12 years. These are modelled estimates and may vary.
What is the temperament of a Cimarrón Uruguayo?
The breed is described as courageous, intelligent, loyal, protective, calm, and confident. However, individual dogs may vary, and temperament is influenced by training, socialization, and environment.
How much exercise does a Cimarrón Uruguayo need?
The breed has an energy score of 4 out of 5, indicating a high need for regular exercise. It is not suited for apartment living (apartment suitability score 2/5) and likely requires space and daily activity.
What are the grooming requirements for a Cimarrón Uruguayo?
The breed has a short coat and a grooming score of 1 out of 5, meaning minimal grooming is needed. Shedding is moderate (score 3/5).
Is the Cimarrón Uruguayo good with children and other dogs?
Child suitability is rated 4 out of 5, suggesting it can be good with children when properly socialized. Dog compatibility is rated 3 out of 5, indicating it may be selective with other dogs. Individual experiences may vary.
Where does the Cimarrón Uruguayo originate from?
The breed originates from Uruguay. It descends from dogs brought by Spanish and Portuguese colonizers and developed as a feral breed through natural selection.
Is the Cimarrón Uruguayo recognized by major kennel clubs?
Recognition status varies by registry. It is recognized by the FCI and was officially recognized in Uruguay in 1989. However, recognition by other registries may differ.
Data transparency
✓ Published · VerifiedSources and review status
APIThe Dog API ↗The Dog API Terms of Service (effective 2023-07-01)
VETERINARY SOURCEWSAVA Global Nutrition Guidelines and Toolkit ↗Copyright; factual citation and original summary only
Image source: The Dog API. Last reviewed 7/20/2026.