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Chihuahua puppies and dogs in O Fallon, Missouri

Looking for a Chihuahua puppy or dog in O Fallon, Missouri? Adopt a Pet can help you find an adorable Chihuahua near you.

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Adopt a Chihuahua near you in O Fallon, Missouri

These Chihuahuas are available in O Fallon, Missouri.
Photo of Dottie

Dottie

Chihuahua Chinese Crested

Female, Senior
O'Fallon, MO
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
Dottie is a sweet tiny ball of energy that will be your best buddy once she gets to know you. She weighs about 5 1/2 pounds and has been spayed and is current on her vaccinations. She is 8-10 years old. Dottie is working on her housebreaking but isn’t quite there yet. She gets along with most other dogs but is a little Leary of large dogs. She would do better in a family with older or no children. Of If interested in meeting her, contact us at adopt@allpawsrescue.info or fill out  application on our website www.allpawsrescue.infoAll 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.  August 27, 2026, 12:42 pm

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Photo of Legolas

Legolas

Chihuahua

Male, Senior
O'Fallon, MO
Size
(when grown) Small 25 lbs (11 kg) or less
Details
Good with dogs, Good with cats, Shots are up-to-date,
Story
Sassy, loving, toothless cuddle bugThis sassy, adorable, sweet, loving little piece of chihuahua came to rescue when his family decided they just didnt want him any longer. He may not have any teeth, but he has alot of personality. He loves to burrow under blankets, to curl up on your lap and nap, or to yell at you if you dont share your meal with him. He does mark occasionally, but will go outside as well. He does well with my cat, he doesnt really acknowledged her at all, he likes to be around other dogs, but really likes being with his people. As he is toothless and his bottom jaw is almost nonexistent he needs extra patience, but nothing that a loving home wont be able to offer him. If you have a Lego size spot in your home, bed, lap, and heart give this little character a chance to fill it.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.  August 27, 2026, 12:42 pm

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Photo of Bilbo

Bilbo

Chihuahua

Male, Senior
O'Fallon, MO
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 senior boyThis adorable old guy had to start the search for a new home at this stage of life when his original owner had to go into care, and family was unable to keep him. He is a sweet, friendly, loving senior who is mostly toothless and has some vision issues, he does great with my cat, by basically ignoring her, and gets along with other dogs, likes getting in the car he likes kids, but as he is smaller, older, and slower while his heart wants to keep up, his little self just cant. He is mostly potty trained, but will have the occasional accident, but this sweet, calm, happy little guy deserves a soft pillow and a loving hand in his sunset years. If you have a patient heart and a warm comfy spot in your heart and home for this little guy.  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.  August 27, 2026, 12:42 pm

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Or, how about these Chihuahuas in cities near O Fallon, Missouri

These Chihuahuas are available for adoption close to O Fallon, Missouri.
Photo of Pip

Pip

Chihuahua

Male, Young
St Peters, MO
Size
(when grown) Small 25 lbs (11 kg) or less
Details
Good with kids, Good with dogs, Good with cats, Needs experienced adopter, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
This sweet 7lbs little guy was found as a stray and is now looking for a loving forever home. He’s about 1 year old and is genuinely the sweetest little shadow. Once he bonds with you, he wants to be right by your side and will follow you pretty much anywhere. He is still adjusting to having a safe, stable home and appears to have separation anxiety when left alone. He also needs continued work with house training and learning to be comfortable when left alone.He may need some extra patience in the beginning, but once he feels safe, he is an incredibly loving and loyal companion.We’re looking for someone who is willing to give him the consistency, patience, and love he deserves. Please message me with information about yourself and your household if interested.

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Photo of Honeybee

Honeybee

Chihuahua Mixed Breed (Small)

Female, 2 yrs 1 mo
St Charles, MO
Size
(when grown) Small 25 lbs (11 kg) or less
Details
-
Story
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Photo of Cricket

Cricket

Chihuahua Mixed Breed (Small)

Male, 2 yrs 1 mo
St Charles, MO
Size
(when grown) Small 25 lbs (11 kg) or less
Details
Spayed or Neutered,
Story
-

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Photo of Dottie

Dottie

Chihuahua Chinese Crested

Female, Senior
O'Fallon, MO
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
Dottie is a sweet tiny ball of energy that will be your best buddy once she gets to know you. She weighs about 5 1/2 pounds and has been spayed and is current on her vaccinations. She is 8-10 years old. Dottie is working on her housebreaking but isn’t quite there yet. She gets along with most other dogs but is a little Leary of large dogs. She would do better in a family with older or no children. Of If interested in meeting her, contact us at adopt@allpawsrescue.info or fill out  application on our website www.allpawsrescue.infoAll 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.  August 27, 2026, 12:42 pm

Learn More

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Photo of Legolas

Legolas

Chihuahua

Male, Senior
O'Fallon, MO
Size
(when grown) Small 25 lbs (11 kg) or less
Details
Good with dogs, Good with cats, Shots are up-to-date,
Story
Sassy, loving, toothless cuddle bugThis sassy, adorable, sweet, loving little piece of chihuahua came to rescue when his family decided they just didnt want him any longer. He may not have any teeth, but he has alot of personality. He loves to burrow under blankets, to curl up on your lap and nap, or to yell at you if you dont share your meal with him. He does mark occasionally, but will go outside as well. He does well with my cat, he doesnt really acknowledged her at all, he likes to be around other dogs, but really likes being with his people. As he is toothless and his bottom jaw is almost nonexistent he needs extra patience, but nothing that a loving home wont be able to offer him. If you have a Lego size spot in your home, bed, lap, and heart give this little character a chance to fill it.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.  August 27, 2026, 12:42 pm

Learn More

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Photo of Bilbo

Bilbo

Chihuahua

Male, Senior
O'Fallon, MO
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 senior boyThis adorable old guy had to start the search for a new home at this stage of life when his original owner had to go into care, and family was unable to keep him. He is a sweet, friendly, loving senior who is mostly toothless and has some vision issues, he does great with my cat, by basically ignoring her, and gets along with other dogs, likes getting in the car he likes kids, but as he is smaller, older, and slower while his heart wants to keep up, his little self just cant. He is mostly potty trained, but will have the occasional accident, but this sweet, calm, happy little guy deserves a soft pillow and a loving hand in his sunset years. If you have a patient heart and a warm comfy spot in your heart and home for this little guy.  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.  August 27, 2026, 12:42 pm

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These pups are in O Fallon, Missouri too!

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

Dottie

Chihuahua Chinese Crested

Female, Senior
O'Fallon, MO
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
Dottie is a sweet tiny ball of energy that will be your best buddy once she gets to know you. She weighs about 5 1/2 pounds and has been spayed and is current on her vaccinations. She is 8-10 years old. Dottie is working on her housebreaking but isn’t quite there yet. She gets along with most other dogs but is a little Leary of large dogs. She would do better in a family with older or no children. Of If interested in meeting her, contact us at adopt@allpawsrescue.info or fill out  application on our website www.allpawsrescue.infoAll 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.  August 27, 2026, 12:42 pm

Learn More

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Search for a Chihuahua puppy or dog

Use the search tool below to browse adoptable Chihuahua puppies and adults Chihuahua in O Fallon, Missouri.

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Related breeds in O Fallon, Missouri

Chinese Cresteds in O Fallon, Missouri Pomeranians in O Fallon, Missouri Xoloitzcuintlis in O Fallon, Missouri Chiweenies in O Fallon, Missouri

Chihuahua shelters & rescues in O Fallon, Missouri

There are animal shelters and rescues that focus specifically on finding great homes for Chihuahua puppies in O Fallon, Missouri. Browse these Chihuahua rescues and shelters below.

Here are a few organizations closest to you:

Rescue

5 miles

Lucky K9 Rescue - St. Charles MO

FOSTER BASED RESCUE, St Charles, MO 63303

Pet Types: dogs

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Rescue

7.4 miles

All Paws Rescue

P.O.Box 1274, O'Fallon, MO 63366

Pet Types: cats, dogs

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Rescue

10.6 miles

Gods Dogs Rescue of TX for St Louis Transport Stop

St Louis, MO 63146

Pet Types: dogs

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Rescue

11.4 miles

All About Paws

Po Box 621, Bridgeton, MO 63044

Pet Types: dogs

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Rescue

13.6 miles

MO Min Pin Rescue - MO

Hazelwood, MO 63042

Pet Types: dogs

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Rescue

16.2 miles

On My Way to Furever Rescue Inc.

St. Albans, MO 63073

Pet Types: dogs

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Rescue

17.4 miles

St. Louis Pet Rescue

P. O. Box 374, Valley Park, MO 63088

Pet Types: cats, dogs

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Shelter

20.1 miles

Polk County Humane Society - St. Louis Transport

10900 Sunset Hills Plaza, St. Louis, MO 63127

Pet Types: cats, dogs

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Rescue

21.4 miles

Home 2 Home Canine Orphanage

Pacific, MO 63069

Pet Types: dogs

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Rescue

22 miles

St. Louis Senior Dog Project

High Ridge, MO 63049

Pet Types: cats, dogs, rabbits, small animals

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Looking for a specific shelter or rescue?

If you're not seeing what you're looking for, try our shelter and rescue search. We have more than 17,000 organizations in our database with furry pals waiting for a new home!

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Want to learn more about adopting a Chihuahua puppy or dog?

We've got all the info you need on adopting and caring for a Chihuahua puppy. Check out the links below for everything you ever wanted to know about Chihuahua puppies and adults.

Chihuahua basics

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Where do Chihuahuas come from? How many types of Chihuahuas are there? From the history of the breed to question about average height, weight and size, brush up on these basic facts about the Chihuahua.

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