Rat Terrier Adoption in O Fallon, MO: Rat Terrier Puppies for Sale in O Fallon, MO

Adopt a Rat Terrier near you in O Fallon, Missouri

We don't see any Rat Terriers available for adoption right now, but new adoptable pets are added every day. Try a different search below!

Or, how about these Rat Terriers in cities near O Fallon, Missouri

These Rat Terriers are available for adoption close to O Fallon, Missouri.

Midoriya JC

Rat Terrier Australian Cattle Dog

Male, 6 mos

St Louis, MO

Size

(when grown) Med. 26-60 lbs (12-27 kg)

Details

Good with dogs, Spayed or Neutered,

Story

I'm fun size, feisty, and ready to explore! A curious little fellow I am. I want to know about all the things. I want to be best friends forever. Best feature- tie between my bouncy little ears and white speckled socks. Ideal Date- Breakfast (I love my nom noms), Endless play, cuddles, snacky snack, More play, cuddles, Still playing, Dinner, Never going to stop play, cuddles, Night Night Favs- Food and toys Past time: Playing with my foster siblings- human and four legged. Adopt me today and let OUR adventure begin! Local adoption fee is $350(in TX) Out of state adoption fee is $650 (includes transport to your area)

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Hensley

Rat Terrier Jack Russell Terrier

Male, 4 yrs 1 mo

High Ridge, MO

Size

(when grown) Small 25 lbs (11 kg) or less

Details

Good with dogs, Spayed or Neutered, Shots are up-to-date,

Story

Hensley isa terrier mix that is estimated to be 4 to 5 years old .Hensley weighs 13 pounds. We think he is amazing little dog that is so friendly to all people people. Hensley is good with other dogs , leash trained , crate trained, and does well with housebreaking . Perfection in this are is never promised. This little guy is quite the find in rescue ! Application can be found at stlsdp.org.

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Penny

Rat Terrier Chihuahua

Female, 10 mos

Waterloo, IL

Size

(when grown) Small 25 lbs (11 kg) or less

Details

Good with dogs, Good with cats, Spayed or Neutered, Shots are up-to-date,

Story

Sweet little Miss Penny came to us pregnant. She had her babies on 7/30/26 and is now ready to be someone's baby herself. She loves to sit on your lap and put her head on your chest under your chin and lean in for love <3 She has long legs and does good on a leash. She is good with the other dogs and cats. She hasn't met any small kiddos here so we aren't sure about how she would be with very small kiddos under say about 10 years. She would love a home where she gets alot of love and attention. ##2859691##

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Charlie

Rat Terrier Terrier (Unknown Type, Medium)

Female, 1 yr 5 mos

Waterloo, IL

Size

(when grown) Small 25 lbs (11 kg) or less

Details

Good with dogs, Good with cats, Spayed or Neutered, Shots are up-to-date,

Story

Little Miss Charlie came to us very pregnant. On Mother's Day 5/10/26 she had 9 beautiful babies who have all now found their homes and its Charlie's turn now. She came in heartworm positive and has completed the full 3 shot protocol for treatment of them. She will need to be kept calm for a few months. Leash walks and no free running around. She loves all humans and has had no issues with the other dogs or cats here. We do not know how she would be with kiddos. ##2859668##

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Phoebe

Rat Terrier Chihuahua

Female, 7 yrs 5 mos

Waterloo, IL

Size

(when grown) Small 25 lbs (11 kg) or less

Details

Good with dogs, Spayed or Neutered, Shots are up-to-date,

Story

Phoebe is a definite Rat Terrier mix around 3-4 years of age. She was found running at large with little Rachel in Taney Co. Missouri. She is a little shy at first, but a super sweet girl. She does climb out of the pup pen that is 4ft tall so a secure yard for her to play in with a privacy fence would be great! She is a little alpha acting with other dogs, but does like their company. Active girl and super pretty too! She would make a great trail/walking partner and prefers women over men, but does warm up. ##1734559##

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Vaquero

Chihuahua Rat Terrier

Male, 4 mos

St. Louis, MO

Size

(when grown) Small 25 lbs (11 kg) or less

Details

Good with kids, Good with dogs, Good with cats, Spayed or Neutered, Shots are up-to-date,

Story

Please note that this dog is currently located in TX and will be transported once adopted. Our application can be found at haydudeequine.org. 🐾 Meet Vaquero! 🤠 **Rat Terrier Mix • Born May 15, 2026 • 7 lbs of pure puppy perfection** ### Here's what the humans have to say about me: Please note that we are a foster-based rescue in TX. All of our dogs reside in foster homes in TX. We transport them to new states once adopted. **ALL ADOPTERS MUST BE 21+.** Our adoption application can be found at **haydudeequine.org**. Now that we've gotten the boring human stuff out of the way… **HI! I’M VAQUERO!** 🐶 I may weigh only 7 pounds, but I have apparently decided that I need to fill every available inch of your heart, your lap, and possibly your home. I am a **Rat Terrier mix puppy**, which means I come with an impressive combination of adorable, playful, curious, and just the right amount of *“What’s that?! I MUST INVESTIGATE!”* 😂 I love wrestling with my brothers, chasing toys, exploring everything I can possibly find, and generally making sure nobody in the house gets too comfortable. I believe puppies should be busy. There are toys to chase! Things to sniff! Brothers to tackle! But after all that important puppy business, I am very happy to clock out and report for **snuggle duty**. ❤️ Give me a warm lap and a cozy spot, and I will happily curl up in your arms for a nap. I am basically a tiny adventure buddy who comes with a built-in cuddle setting. I'm also doing **really well with my potty training** and am eager to keep learning. I'm a smart little guy, and with a family willing to keep teaching me, I'm going to make an excellent companion. I get along wonderfully with **dogs of all sizes** and do well with **cats**, too. I love people, I love adventures, I love playtime, and I REALLY love being loved. So whether you're looking for a hiking buddy, a playmate, a couch potato, a professional snuggler, or someone who will make you laugh approximately 47 times a day… **Vaquero has submitted his application for the position.** 🐾 I'm small right now, but I've got a **BIG personality and an even bigger heart**. All I need now is a forever family to grow up with. **Come meet me. I have a feeling we're going to be best friends.** ❤️

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These pups are in O Fallon, Missouri too!

Below are our newest added Rat Terriers available for adoption in O Fallon, Missouri. To see more adoptable Rat Terriers in O Fallon, Missouri, use the search tool below to enter specific criteria!

MOOSE

Jack Russell Terrier

Male, 5 yrs 8 mos

St. Peters, MO

Size

(when grown) Small 25 lbs (11 kg) or less

Details

Story

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Margarita

Jack Russell Terrier

Female, Adult

O'Fallon, MO

Size

(when grown) Small 25 lbs (11 kg) or less

Details

Good with dogs, Good with cats, House-trained, Spayed or Neutered, Shots are up-to-date,

Story

Margarita is a sweet, shy cautious introverted young lady who is full of joy and love once she is settled and trust you. We are unsure of her history as she came to rescue from someone who had just gotten her from another situation. She doesnt like loud noises or fast sudden movements, and will take a while to warm up to people. Once she does accept you she likes to play and get loves. She Loves Loves LOVES food and treats. She is more comfortable and happy with dogs her size then people. She does ok with cats, she likes to try and play chase with them, so if the cat is open to 4 legged games. Her current bestie is a poddle mix and they run and play it, wrestle with each other, use the house and yard as a race track, steal toys from each other and generally just bring joy and mayhem together. She does great in the car but is slow to learn the leash, outside her space is a big scary place so patience and a fully fenced in yard is a must. A home with no small kids would be best, but with at least 1 other dog is preferable.All pets are spayed/neutered, microchipped, up to date on vaccinations and on a flea/tick preventative. Cats are tested for FIV/FeLV and dogs are tested for heartworms. Adoption fee is $150 for cats and $200 for dogs. To meet this pet, please fill out a dog application or cat application. Not able to adopt? Inquire about fostering or sponsoring this pet. For more information visit www.allpawsrescue.info. October 5, 2026, 9:25 pm

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Rat Terrier puppies and dogs in O Fallon, Missouri

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Adopt a Rat Terrier near you in O Fallon, Missouri

We don't see any Rat Terriers available for adoption right now, but new adoptable pets are added every day. Try a different search below!

Or, how about these Rat Terriers in cities near O Fallon, Missouri

These Rat Terriers are available for adoption close to O Fallon, Missouri.

These pups are in O Fallon, Missouri too!

Below are our newest added Rat Terriers available for adoption in O Fallon, Missouri. To see more adoptable Rat Terriers in O Fallon, Missouri, use the search tool below to enter specific criteria!

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Rat Terrier basics

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Rat Terrier puppies and dogs in O Fallon, Missouri

Learn More:

Adopt a Rat Terrier near you in O Fallon, Missouri

We don't see any Rat Terriers available for adoption right now, but new adoptable pets are added every day. Try a different search below!

Or, how about these Rat Terriers in cities near O Fallon, Missouri

These Rat Terriers are available for adoption close to O Fallon, Missouri.

These pups are in O Fallon, Missouri too!

Below are our newest added Rat Terriers available for adoption in O Fallon, Missouri. To see more adoptable Rat Terriers in O Fallon, Missouri, use the search tool below to enter specific criteria!

Search for a Rat Terrier puppy or dog

Rat Terrier puppies and dogs in nearby cities

Related breeds in O Fallon, Missouri

Rat Terrier shelters & rescues in O Fallon, Missouri

Looking for a specific shelter or rescue?

Want to learn more about adopting a Rat Terrier puppy or dog?

Rat Terrier basics

Rat Terrier basics