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:
Hero image
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.

Photo of Marilyn

Marilyn

Rat Terrier Chihuahua

Female, 5 yrs 9 mos

Los Angeles, CA

Color
N/A
Size
(when grown) Small 25 lbs (11 kg) or less
Details
Good with kids
Good with dogs
Not good with cats
House-trained
Spayed or Neutered
Shots are up-to-date
Story
Marilyn, a 4-6-year-old, 13-pound female rat terrier/chi mix, is a cuddle monster. She has adjusted well to city life after leaving San Diego. She flew to NYC back in February to help make space in the shelters for the LA dogs displaced by the fires. She has the most beautiful light brown eyes that will remain trained on her chosen human. She is loyal loving girl who loves any and all treats. She has learned to “sit” as long as there are treats involved. When home with her human, she must be touching you. She may bark once or twice when her human leaves the house but settles down very quickly and is fine until they return. She would do well in a home with another adult dog, as she suffers from solo dog separation anxiety. While she prefers being with her humans, the presence of another dog seems to soothe her. You must pay the belly rub tax when you leash her up and clean her paws. She does great on a leash and appears to be house trained. Marilyn has a large bald patch on her back and tail. Her fur has begun to slowly grow back but her forever family will want to keep an eye on this and make sure that her skin continues to improve. She is received a dental and had a couple teeth extracted. It appears she has had many babies in the past…and does not enjoy the energy of puppies. Who can blame her! She seems intrigued by the sounds of cats on TV but that remains untested. Vaccinated for rabies, DHPP, lepto, and bordetella. Spayed, heartworm negative, and microchipped. Current on flea, tick, and heartworm prevention. To apply for Marilyn, visit our website (www.waggytailrescue.org) for an adoption application. It is important to fill out an application as soon as possible for consideration, and we require a complete application for you to meet an animal. We are currently unable to respond to general email inquiries as an all-volunteer run rescue. If the dog is on our website, they are still available. Waggytail Rescue CANNOT guarantee the exact age of any adoptable dog, or final size of any of our adoptable puppies. We rely on the information provided to us by veterinarians, shelters, owner surrenders and other circumstances bringing the dog into our rescue. Adoptions: adopt@waggytailrescue.org ##2286388##
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Photo of CHARMY

CHARMY

Rat Terrier

Male, 2 yrs

Los Angeles, CA

Color
Red/Golden/Orange/Chestnut
Size
(when grown) Small 25 lbs (11 kg) or less
Details
Not good with kids
Not good with dogs
Not good with cats
Spayed or Neutered
Story
Photo of MILLIE

MILLIE

Rat Terrier

Female, adult

Los Angeles, CA

Color
Black - with White
Size
(when grown) Small 25 lbs (11 kg) or less
Details
Not good with kids
Good with dogs
Good with cats
House-trained
Spayed or Neutered
Shots are up-to-date
Story
MILLIE is a lovely adult/senior, 8 pounds, girl Rat Terrier whose senior human dad passed away, leaving Millie and her four little companions, Cookie, Shorty, Poopsy, and Missy, without their dad. They all get along really well, are house trained, and also know to use pads to do their business indoors, and at night, and when it's raining or very cold out. They are not barkers, only barking to warn that someone is at or near the front door, and then they settle down again. They are great with cats because their housemates have been six (6) cats! If shown a lot of affection and understanding when welcomed into their new homes, we are sure these lovely kiddos will do well in a loving new home even if they don’t stay together. IMPORTANT NOTE: Recently the number of deaths from hungry coyote attacks has greatly increased. Coyotes can climb 10 foot fences with a small to medium sized dog in their jaws. This happens in broad daylight in the middle of the day, and on trails while hiking with your dog on a leash, it is truly unbelievable, and we have frightening first-hand accounts. We are listing these lovely pups to help their current foster/rescue in finding them wonderful new homes. All four girl pups are spayed, Shorty is neutered, and all of them current on vaccines. To learn more about Millie (Cookie, Shorty, Poopsy, and Missy), please contact us at: theanimalsleftbehind@socal.rr.com (also our PayPal email for donations and sponsorships).
Photo of Rustin

Rustin

Rat Terrier Chiweenie

Male, 5 mos

Los Angeles, CA

Color
Black - with White
Size
(when grown) Small 25 lbs (11 kg) or less
Details
Good with kids
Good with dogs
Good with cats
Needs special attention
House-trained
Shots are up-to-date
Story
Text or email only for direct contact with rescuer located in Palmdale approved for same-day adoption (661)609-2186 memeco635@gmail.com Hello, my name is Rustin. I’m a cute little rat terrier mix puppy that is a high kill shelter survivor As well as a Parvo Survivor! The odds were stacked against me, but I didn’t give up although I didn’t trust people I was able to trust my rescuer and together she and I beat Parvo and after many sleepless nights(for us both!) when I got the all clear we celebrated with pup cups from Starbucks which is my absolute favorite treat now! My rescuer thinks I will eventually fold and love getting dressed up and all of these crazy outfits and sweaters, but I tolerate them because she squeals when I let her dress me. I have made many friends in the rescue, both feline and canine, A house pig and some sheep and goats that come in for daily treats (I’m not too big a fan of the house chicken as he is very protective of my rescuer) but I’m very well socialized with a variety of animals and with a little time and more desensitizing to touch, I will regain my trust in humans, but my rescuer feels I am ready for my own forever home because she believes that one on one time and socialization will help me open my heart once more. I love to be held and I easily fall asleep in your arms I’m not a super hyper or even active puppy I’m very playful and sweet but also very mellow and relaxed when I’m comfortable I just need someone who is patient kind and soft spoken to bring out my full potential and show me it’s OK to be a puppy! if you think that sounds like you and you’re willing to give me that chance, Please contact my rescuer directly with the information listed above my story to schedule a time for us to meet I am approved for same-day adoption so if you fall in love with me, the adoption process is easy and doesn’t take long at all and once completed and I am yours and you are mine to begin our new lives together❤️ I’ve come along way and survived so much and I am ready for this next chapter. I look forward to meeting you!
Photo of Monica

Monica

Rat Terrier Smooth Fox Terrier

Female, young

Los Angeles, CA

Color
White
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids
Good with dogs
Not good with cats
Spayed or Neutered
Shots are up-to-date
Story
Hello! My name is Monica. I am a young adult ready for my forever home. I am a little shy, but I am sweet and great with other dogs. I like getting outside to play and run around. I have a gentle temperament and ready for a best friend. If you are interested in adopting me, please go to the Ozzie and Friends website https://www.ozzieandfriendsrescue.org November 6, 2024, 2:40 pm
Photo of Katie

Katie

Rat Terrier Patterdale Terrier (Fell Terrier)

Female,

Los Angeles, CA

Color
Black
Size
(when grown) -
Details
Good with kids
Good with dogs
Not good with cats
House-trained
Spayed or Neutered
Shots are up-to-date
Story
Hello, I am Katie! I am a young mixed breed Terrier. I am a happy go lucky dog with a playful spirit. I like going on walks, playing at the park and spending some down time with cuddles . I have a calm temperament and am loyal as they come. If you are interested in adopting me, please go to the Ozzie and Friends website https://www.ozzieandfriendsrescue.org March 15, 2025, 9:54 am