Brazilian Mastiff

Working Group Giant (100+ lbs)
Height 24-30"
Weight 90-180 lbs
Lifespan 9-11 years
Price $1,000-$2,000

About the Brazilian Mastiff

Prospective owners should begin with the temperament this breed was selected for, because it is unusual and legally consequential. The Fila Brasileiro was bred to track, hold and guard, and its standard describes an inherent distrust of strangers so pronounced that Brazilian show judging traditionally accounted for it. That trait does not soften with casual socialisation, and it is why the breed is restricted or banned in a number of countries. With its own family the Fila is devoted, calm and often notably tolerant of household children, following its people closely and preferring proximity. Physically this is a large loose-skinned mastiff with a heavy head, abundant dewlap and a distinctive rolling camel-like gait created by moving both legs on one side together. Exercise is moderate but space is essential, since confinement suits it badly. Training requires early structured work from an experienced handler, because the breed is intelligent yet strongly independent and unsuited to novice ownership. Coat care amounts to a weekly once-over of short hair, though drool and fold cleaning are ongoing. Barking is deep and infrequent, and the breed tends to act rather than warn at length. Isolation is disliked. Rural properties with committed experienced owners are the only realistic setting. Distinctively, no other recognised breed writes stranger suspicion into its standard so explicitly.

Temperament

Affectionate Protective Highly Intelligent Independent Quiet
Affection Level
Good with Children
Good with Other Dogs
Playfulness
Protectiveness
Trainability
Energy Level
Barking Level
Intelligence
Adaptability

Physical Characteristics

Size Category Giant (100+ lbs)
Height 24-30"
Weight 90-180 lbs
Coat Type Smooth
Coat Length Short
Colors
Hypoallergenic No

Care Requirements

Exercise Needs

High (60-90 min/day)

60 minutes per day recommended

Grooming

Moderate - Weekly

Shedding:

Mental Stimulation

Moderate mental stimulation needed

Drooling

Living Conditions

Apartment Friendly
Good for First-Time Owners
Tolerates Being Alone
Cold Weather Tolerance
Hot Weather Tolerance

Cost of Ownership

Purchase Price $1,000-$2,000
Annual Cost $1,800/year

Costs vary based on location, breeder, and individual needs. Annual costs include food, veterinary care, grooming, and supplies.

Health Considerations

Like all breeds, Brazilian Mastiffs may be prone to certain health conditions:

Regular veterinary check-ups and proper care can help prevent or manage many health issues.

Best For

  • Guard Dog

May Not Be Ideal For

  • Apartment Living
  • First-Time Owners

Guides for your Brazilian Mastiff

The story behind the Brazilian Mastiff

Brazilian estates from the colonial period onward needed dogs that could work cattle, hunt large game and track and hold people on plantations, and the Fila Brasileiro developed from a mixture of European stock brought by Portuguese and Spanish settlers, with mastiff, bulldog and bloodhound-type ancestry commonly cited. Tracking ability, a powerful grip and the instinct to hold rather than kill were the qualities selected. The breed was documented and standardised in Brazil during the twentieth century, with a national club formed in the 1950s and FCI recognition following, though later disagreements over type and temperament split Brazilian breeders. Filas still work on rural properties as guardians and hunting dogs, remain popular within Brazil, and are legally restricted in various countries abroad.

Originally bred for: Guarding, Hunting, Tracking, Livestock work. You can trace how working roles shaped today’s breeds across our dog guides.

Feeding a Brazilian Mastiff

A giant loose-skinned breed needs large-breed puppy food to slow growth on developing joints, then a quality adult diet in measured portions. Deep chests favour divided unhurried meals, and keeping this heavy build lean makes a real difference to comfort and mobility over time.

Watch for: Deep-chested mastiff builds are consistently advised toward smaller divided servings and calm eating. Loose skin, folds and heavy lips create irritation that has nothing to do with ingredients at all. No breed-specific food sensitivity is documented, so let a veterinarian assess persistent problems.

Not sure what to put in the bowl? See our picks for the best dog food for large breeds.

Mealtime extras: training treats worth keeping in your pocket, and a slow feeder bowl if your dog inhales dinner. Everything else lives in our dog nutrition and feeding hub.

Living with a Brazilian Mastiff

Day to day, the basics matter most: how much exercise your dog needs, how often to get out for a walk, and how much sleep is normal.

For play and enrichment, browse chew toys built for strong jaws and interactive toys for rainy days.

Gear that fits the breed makes life easier: a well-sized dog bed, a properly sized crate.

Raising a puppy? Work through crate training and the teething timeline — or see how old your dog is in human years with our dog age calculator.

Compare Brazilian Mastiff with Other Breeds

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