Chihuahua Adoption in O Fallon, MO: Chihuahua Puppies for Sale in O Fallon, MO

Adopt a Chihuahua near you in O Fallon, Missouri

These Chihuahuas are available in O Fallon, Missouri.

Maizey

Chihuahua

Female, Senior

O'Fallon, MO

Size

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

Details

Not good with kids, Good with dogs, Spayed or Neutered, Shots are up-to-date,

Story

Maizey is a 7 year old Chihuahua mix. She is spayed, current on shots, spayed, and microchipped. She seems to be housebroken. A person with Chihuahua experience would be the best place for her. She will warm up to new people slowly, but seems to attach with one person. Maizey would love a little playmate and have a fully fenced yard to play in. She weighs about 10 lbs. If you’d like to find out more about her, you can fill out an application online on our website. www.allpawsrescue.info or email weezmags@hotmail.comAll 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. November 21, 2025, 12:37 pm

Learn More

BeaBea

Chihuahua

Female, Senior

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

BeaBea is a 8-9 year old chihuahua mix who is looking for a home. She weighs around 15 pounds but is trying to lose a little weight. Like many chihuahuas, BeaBea is wary of strangers and takes time to warm up to a new person. She has never shown aggression to people or other animals, but would do best in a home without small children. She is good with other dogs and with cats but mostly keeps to herself. BeaBea is housebroken, playful with toys, and loves spending time with her person. She is mostly a couch potato but occasionally gets the zoomies in the backyard. To learn more about BeaBea, fill out an adoption application or email her foster mom at Jeanine.Sellman@gmail.comAll 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. December 14, 2025, 9:43 am

Learn More

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

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

Piper

Chihuahua Mixed Breed (Small)

Female, 7 yrs 1 mo

St. Louis, MO

Size

(when grown) -

Details

Good with dogs, Spayed or Neutered,

Story

🌸 Meet Piper! 🌸 This 7-year-old, 8-pound chihuahua mix has a heart as big as her ears—and she’s SO ready to share it with her forever family. 🐾 Piper and her sister Chloe were picked up as strays and ended up in a high-kill shelter, but everything changed the moment they came into rescue. Piper has bloomed into the sweetest, most affectionate little companion. She’s gentle, loving, and happiest when she’s snuggled up right beside her person. She melts into your arms like she’s been waiting her whole life for that moment. ✨ She’s confident, easygoing, and absolutely the kind of dog who makes you feel chosen. Plus—she’s house trained and crate trained! 🙌 If you’re searching for a tiny, loyal shadow who will follow you from couch to bed and everywhere in between, Piper is your girl.

Learn More

Laird

Chihuahua Dachshund

Male, 3 mos

St. Louis, MO

Size

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

Details

Good with kids, Good with dogs, Good with cats,

Story

Meet Sharon Stone’s three handsome boys — Roan, Laird, and Quinn! These little cuties are playful, happy Chiweenie/terrier mixes who adore attention, love people, and have the sweetest puppy personalities. Their mama weighs just 16 pounds. We estimate the boys will be around 16 pounds full grown based on their current weights, making them a perfect small-sized addition to any loving home. 💛 Roan: 5.5 pounds, tan with light brown eyes Laird: 4 pounds, black tricolor scruffy Quinn: 4.5 pounds, tan with dark brown eyes

Learn More

Chloe

Chihuahua Mixed Breed (Small)

Female, 7 yrs 1 mo

St. Louis, MO

Size

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

Details

Good with dogs, Spayed or Neutered,

Story

🌷 Meet Chloe — 7 years old · 7 lbs · Sweet, Soft, and Ready to Bloom 🌷 Chloe and her sister Piper were picked up as strays and brought to a high-kill shelter before getting a second chance with us. Chloe is the quieter of the two, taking her time to observe the world before diving in—but don’t be fooled: this tiny girl is pure sweetness. Chloe is a loyal little soul who bonds deeply once she feels safe. At just 7 pounds, she’s a petite treasure with a big heart. While she’s gentle and soft-spoken, her long legs love to spring into playful action once she trusts you. Plus—she’s house trained and crate trained! 🙌 If your heart leans toward the gentle ones—the slow bloomers who love deeply—Chloe is ready to meet her forever person. 💗 Apply to adopt and give Chloe the safe, loving home she’s always deserved.

Learn More

Buddy

Chihuahua Mixed Breed (Medium)

Male, 1 mo

St. Louis, MO

Size

(when grown) -

Details

Story

🎄 Meet the Christmas Movie Litter! 🎄 Straight from the “North Pole” (okay… the Uvalde area 😄), this festive little family is ready to shine! Mama Jovie, a sweet and gentle 2-year-old Chihuahua mix weighing 15 lbs, has raised her puppies with so much love—and now they’re ready for their own holiday happily ever after. ❤️🎁 These tiny Chihuahua-mix pups are joyful, cuddly, and learning all the puppy basics. Each one is named after a beloved Christmas movie character and is sure to bring cheer to any home this season. Whether you’re looking for a snuggle buddy or a playful sidekick, one of these pups is ready to steal your heart! 🐾✨ 🌟 Mama: Jovie — 2 years old, 15 lbs. A sweet, gentle girl raising her babies like a pro! 🎄 The Christmas Movie Cast: ✨ Cindy Lou (F) — 1.8 lbs ✨ Buddy (M) — 1.4 lbs ✨ Ralphie (M) — 2 lbs 📌 Puppies under 4 months old are eligible for local adoption only (San Antonio area). Bring home a little Christmas magic this year—one of these adorable pups is waiting for you! 🎅💕

Learn More

Winston

Chihuahua Mixed Breed (Small)

Male, 3 yrs 2 mos

St. Louis, MO

Size

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

Details

Story

🐾 Meet Winston! Winston is a 3-year-old male long-haired Chihuahua mix, weighing in at 23 lbs, and he’s searching for a patient, loving forever home. Winston is a bit shy and insecure at first, so he’ll need someone who understands that good things take time. With patience, gentle reassurance, and consistency, Winston truly blossoms. Once he trusts you, he becomes incredibly loyal and will happily stick by your side, following his person wherever they go. He does well with other well-mannered dogs and would enjoy canine companions who respect his space and calm nature. Because Winston can be sensitive, he would do best in a home with older children or no children, where things stay predictable and peaceful. Winston may take a little longer to warm up—but the reward is a devoted companion who will bond deeply and love wholeheartedly. If you’re looking for a loyal best friend and are willing to give him the time he needs, Winston could be your perfect match. ❤️

Learn More

Tater Tot

Chihuahua Mixed Breed (Small)

Male, 7 yrs

St. Louis, MO

Size

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

Details

Good with dogs,

Story

Meet Tater Tot! 🥔❤️ This adorable 7-year-old, 15-pound chihuahua mix is as sweet as his name suggests! Tater Tot is incredibly friendly with people and loves everyone he meets — he’s the kind of pup who brightens your day with just a tail wag. When it comes to other dogs, Tater Tot does best with calm, gentle female pups who won’t overwhelm him. He’s not a fan of rambunctious play, but he’s happy to coexist peacefully with the right canine companion. Tater Tot is simply looking for his perfect match — a home that appreciates his loving nature and gives him the cozy, content life he deserves. 💛 If you’re searching for a loyal little buddy who adores humans, Tater Tot might be the one!

Learn More

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

Chihuahua puppies and dogs in O Fallon, Missouri

Learn More:

Adopt a Chihuahua near you in O Fallon, Missouri

These Chihuahuas are available in O Fallon, Missouri.

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

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

Search for a Chihuahua puppy or dog

Chihuahua puppies and dogs in nearby cities

Related breeds in O Fallon, Missouri

Chihuahua shelters & rescues in O Fallon, Missouri

Looking for a specific shelter or rescue?

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

Chihuahua basics

Chihuahua basics

Home

Adopt a Dog

Adopt a Chihuahua

Missouri

O Fallon

Chihuahua puppies and dogs in O Fallon, Missouri

Learn More:

Adopt a Chihuahua near you in O Fallon, Missouri

These Chihuahuas are available in O Fallon, Missouri.

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

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

Search for a Chihuahua puppy or dog

Chihuahua puppies and dogs in nearby cities

Related breeds in O Fallon, Missouri

Chihuahua shelters & rescues in O Fallon, Missouri

Looking for a specific shelter or rescue?

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

Chihuahua basics

Chihuahua basics