Rat Terrier

Breed Type: Terrier
Common nicknames: Rattie
Coat: Smooth
Hypoallergenic: No, they will likely trigger allergies.
Temperament: Energetic, alert, intelligent, friendly
Life expectancy: 12-18 years
Color & patterns:
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Rat Terrier - Chocolate sable
Rat Terrier - Tri Color
Rat Terrier - Tri Color
Rat Terriers are striking dogs with compact, muscular builds and short, shiny coats. Standing around 10 to 18 inches tall, they have a confident presence that matches their spirited personalities. These highly intelligent dogs thrive on mental and physical stimulation, making them ideal for active individuals or families seeking a dynamic companion. Rat Terriers excel in various dog sports, such as agility and obedience trials, thanks to their quick wit and eagerness to please. In addition to their energy, Rat Terriers are known for their affectionate and loyal nature. They form strong bonds with their families and are always ready to shower them with love and attention. Rat Terriers are great with children and other pets, making them a fantastic choice for families. With their fun-loving spirit and unwavering loyalty, Rat Terriers bring excitement and laughter into your life.

Rat Terrier characteristics

Learn about about Rat Terrier basics like their fur colors, shedding levels, how much grooming they need, and other Rat Terrier facts.

Average height

10-18 inches (25.4-45.7cm)

Average weight

10-25 pounds (4.5-11.3 kg)

Average lifespan

12-18 years

Exercise needs
Low-key activityHigh-energy workouts
Grooming needs
OccasionallyFrequently
Full-grown size
Teeny tinySuper size
Good with cats
Likely to chaseHey, new pal!
Good with kids
Needs lots of supervisionReady to play
Training aptitude
HeadstrongEager to please
What does a Rat Terrier look like?

Rat Terriers are striking dogs with compact, muscular builds with short, shiny coats. They have a wedge-shaped head, large, erect ears, dark eyes, and a typically erect tail. Their colors and patterns can vary, including tricolor, bicolor, and solid.

Does a Rat Terrier shed?

Yes, Rat Terriers shed, but they’re moderate shedders. It’s nothing regular brushing can’t handle.

How big do Rat Terrier dogs get?

Rat Terriers are small- to medium-sized dogs, most weighing 10 to 25 pounds. Miniature Rat Terriers stand between 10 and 13 inches, while Standard Rat Terriers stand between 10 to 18 inches tall.

What are Rat Terriers used for?

Rat Terriers were originally bred to hunt and control rat populations on farms and homesteads. Their agility, speed, and great sense of smell make them excellent at rat hunting. They’re still used for their hunting skills to this day, as well as excelling in various dog sports.

How long can a Rat Terrier live?

Rat Terriers can live to be 12 to 18 years old. However, individual lifespans can vary based on factors such as genetics, diet, exercise, healthcare, and overall lifestyle. Providing proper care, regular veterinary check-ups, a balanced diet, and maintaining a healthy weight can contribute to helping dogs of all breeds live long and healthy lives.

When is a Rat Terrier fully grown?

Rat Terriers typically reach their full size at between nine and 12 months. It’s important to provide proper nutrition, exercise, and healthcare during their growth stages to ensure they develop into healthy adult dogs. Regular veterinary check-ups can also help monitor their growth and overall well-being.

Rat Terrier temperament

Learn about about the Rat Terrier temperament and how well they fit into your lifestyle, home environment, and family.

Do Rat Terriers bark a lot?

Yes, Rat Terriers bark as they were bred to be guard dogs and vermin-catchers, so they are instinctual alarm barkers and can be fond of their own voice. As with any dog, they can be discouraged from barking as frequently with proper training and exercise.

Is the Rat Terrier a good family pet?

Yes, Rat Terriers are good family pets. They’re active, alert, and truly crave human companionship, which makes them wonderful family members. They do need a good amount of exercise, so an active family is best. This breed loves to please their humans and thrives on praise.

Are Rat Terriers good with cats?

Yes, Rat Terriers can be good with cats, but early and proper socialization is key, as the breed’s prey drive is high, and their instinct is to chase smaller animals. Of course, each dog (and cat) has their own preferences and temperament, but you can feel fairly confident your Rat Terrier, if properly socialized to your cat and introduced at a young age, should get along just fine.

Are Rat Terriers good with other dogs?

Yes, Rat Terriers tend to do well with other dogs their size or larger. Early socialization and training is a must. Rat Terriers have strong prey drives, so they should never be allowed off-leash, as most will not be able to resist chasing strange cats, other dogs, or squirrels.

Are Rat Terriers smart?

Yes, Rat Terriers are known for being smart. They are quick learners and often eager to please their pet parents, which makes them highly trainable. They excel at obedience training, agility, and even advanced tricks.

Are Rat Terriers good apartment dogs?

Rat Terriers can make excellent apartment dogs as they don’t require as much space as larger breeds and are easily trainable. They are known for their adaptability and sociability and may appreciate the close bond apartment living can offer with their families. Just be sure to give your Rat Terrier lots of exercise to keep them mentally and physically stimulated.

Are Rat Terriers easy to train?

Yes, Rat Terriers are easy to train as they are intelligent and thrive on pleasing their pet parents. Just keep in mind that even if a certain dog breed is known to be easy to train, teaching a dog requires a long-term commitment.

Are Rat Terriers good guard dogs?

Yes, Rat Terriers have an alert nature and are often quick to bark to alert their parents to any potential intruders or unusual activity around the home.

Are Rat Terriers good with kids?

Yes, Rat Terriers can be good with kids, but early and proper socialization with kids is key for Rat Terriers, as they can be territorial with their toys around smaller beings. They are typically fearless and energetic, which means they can make wonderful playmates to older kids, but pet parents will need to train them to behave gently with children, and vice-versa.

As with any breed, it is recommended that your child is always supervised when interacting with your Rat Terrier to keep both the child and dog safe.

Rat Terrier health

Learn about about the Rat Terrier health outlook and what diseases they may be prone to at various stages of their life.

Are Rat Terriers healthy dogs?

Rat Terriers are an incredibly sturdy breed with a long lifespan, partly because of the vast genetic pool they come from. Like most dogs, they may end up with one of the following conditions: 

  • Hip and/or elbow dysplasia: Hip and elbow dysplasia are two of the most common skeletal diseases seen in dogs. They are similar diseases in which either the hip or elbow joint has grown abnormally or is misshapen. The abnormal shape prevents the joints and sockets from properly meeting one another, resulting in rubbing and grinding instead of sliding smoothly. Unlike in hip dysplasia, where the main problem is joint instability, the abnormalities seen in elbow dysplasia often result in pieces of bone and/or cartilage breaking loose and irritating the joint tissues. Over time, the rubbing from dysplasia can cause a variety of issues, such as pain, lameness, and secondary osteoarthritis. Surgery can be done to fix the joint if diagnosed before the onset of arthritis.

  • Patellar luxation: Also known as slipped kneecaps, patellar luxation is a common problem in many dog breeds. It occurs when slight abnormalities cause the knee joint to slide in and out of place, which can cause pain and occasional lameness. Surgical treatment is available for severe cases, although many dogs lead normal lives without treatment.

  • Others: Incorrect bite, where the jaw is slightly deformed and causes misalignment in the jaw (similar to an over or underbite in humans); and allergies.

Is a Rat Terrier hypoallergenic?

No, Rat Terriers are not hypoallergenic. However, regular grooming practices such as brushing and bathing can help reduce allergens on a dog’s coat and skin.

Popular Rat Terrier mixes

Common Rat Terrier mixes include:

  • Raggle (Rat Terrier + Beagle)

  • Brat (Rat Terrier + Boston Terrier)

  • Rat-Cha (Rat Terrier + Chihuahua)

  • Jack Rat Terrier (Rat Terrier + Jack Russell)

  • Rattle (Rat Terrier + Poodle)

  • Rat-A-Pap (Rat Terrier + Papillon)

Rat Terrier Mixes picture

Find Rat Terrier puppies near you

Adopting a Rat Terrier

Learn about acquiring a Rat Terrier - the pros and cons of adopting versus going through a breeder, and associated costs.