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Boxer puppies and dogs in O Fallon, Missouri

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

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Adopt a Boxer near you in O Fallon, Missouri

These Boxers are available in O Fallon, Missouri.
We'll also keep you updated on Lyle (Charlie)'s adoption status with email updates.
Photo of Lyle (Charlie)

Lyle (Charlie)

Boxer Pug

Male, 5 yrs 7 mos
St. Peters, MO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with dogs, House-trained, Spayed or Neutered,
Story
LYLE aka CHARLIE Hi, I'm Lyle, but my friends call me Charlie-because why not keep it cool? I'm a 4.5-year-old Chi/Bulldog mix weighing in at 51 lbs, but let me tell you, in my head, I'm a 5 lb lapdog extraordinaire! Here's why you'll love me: Lapdog Vibes: Size is just a number, right? I'm happiest snuggling up close-your lap is my throne. Fetch Pro: Got a ball? Let's roll! Or toss, actually. I'm also a big fan of car rides with the windows down. House & Crate Trained: Polished and perfect, I've got my manners nailed down. Command Champ: "Sit, "stay, "come-I'm a smart cookie who loves to please. Dog Selective: I'm a star solo act-let's keep the love just between us, okay? Protective & Playful: I'll keep you safe, but we'll have endless fun too! All I need is a forever family where I can shine as the only pup and maybe a yard for our epic play sessions. Trust me, we're gonna have a blast! Ready to meet? Click the link below to learn more and set up a meet-and-greet. Let's make this official-your new best friend is waiting!
We'll also keep you updated on Mimi's adoption status with email updates.
Photo of Mimi

Mimi

Boxer American Pit Bull Terrier

Female, 2 yrs 7 mos
St. Peters, MO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, Spayed or Neutered,
Story
💖✨ MIMI IS READY! ✨💖 🚨 PAWS what you’re doing, hoomans… your new bestie just dropped her glow-up announcement. It’s me—Mimi! 💁‍♀️ Brindle bombshell, professional snugglebug, and future couch queen. 🎉 I’m officially DONE with my “get well soon” era and fully prepped to take on my forever family or a fabulous foster who’ll keep spoiling me like I deserve. 👑 🌟 Mimi’s Stats: 🐾 2 years young & thriving 🐶 Boxer/Pittie mix – the ultimate combo platter 🥰 💋 Snuggle pro—nap buddies wanted 🐕 Leash trained and elegant on walks (yes, I strut) 🏡 Yard preferred for zoomies & sunbathing 💦 Poolside lounging enthusiast 🩷 ⚡ Moderate energy—equal parts play & pajama party vibes 💌 Whether you’re ready to make it official (adopt me!) or just wanna be my interim hype human (foster me!), I’m here for ALL the love and snacks you’ve got. 📣 Fostering is FREE. Stray Paws brings the goods—you bring the cuddles. Win-win. 👉 Click to foster your new best girl: https://www.shelterluv.com/matchme/foster/SPRA/Dog 👉 Click to adopt and make me yours forever: https://www.straypawsrescue.com/information/210924291 #AdoptMimi #FosterMimi #BrindleBeauty #SnuggleGoals #StrayPawsRescue #CuddleTherapistOnDuty #MimiMagic
We'll also keep you updated on Penney's adoption status with email updates.
Photo of Penney

Penney

Boxer Plott Hound

Female, 3 yrs 9 mos
St. Peters, MO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, House-trained, Spayed or Neutered,
Story
~ P E N N E Y ~ Super sweet and super smart, whoever adopts Penney will be one lucky family! Crate trained, dog, cat, and kid friendly! She will steal your heart with just once glance. Penney is a survivor <3 At only 6 months old she was diagnosed with a mass on her spine when she suddenly lost the ability to walk :( She made it through surgery with flying colors and has regained use of her legs :) Dog friendly, cat friendly, kid friendly, potty trained, crate trained, and leash trained! Fill out a form to meet this cutie patootie: straypawsrescue.com/forms ~8 month old plot hound mix, 40lbs~ #adoptdontshop #adoptme #availableforadoption #rescuedismyfavotritebreed #fostersneeded #fosteringsaveslives #stlouis #stldogs #dogsofstl #whosavedwho #straypawsrescue #SPRstrong **If you would like to adopt, please fill out an adoption form which can be found on the animal's profile page at www.straypawsrescue.com
We'll also keep you updated on Rooster's adoption status with email updates.
Photo of Rooster

Rooster

Boxer American Pit Bull Terrier

Male, 8 yrs 3 mos
O'Fallon, MO
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Not good with cats, Spayed or Neutered, Shots are up-to-date,
Story
Rooster, Male, Boxer mix, brown and white, 65lbs Rooster is a fun loving guy who loves his people! He lacks absolutely nothing in the personality department. He is all around just a happy dude. Rooster loves to run and play, so his adoptive home must have a fenced in yard. With proper intros he like making doggie friends and has been good with dogs large and small (20+lbs). Cats on the other-hand he gets a bit over excited about and needs a home without them present, Rooster likes kids, but due to being touchy about his paws, he needs a home with kids 12 and older Interested adopters must be local to the Saint Louis, MO metro area. Rooster's adoption fee is $250.00 and he is fully vetted. An application must be submitted through our website, steppingstonebully.org, to be considered
We'll also keep you updated on Roscoe- courtesy post's adoption status with email updates.
Photo of Roscoe- courtesy post

Roscoe- courtesy post

Boxer

Male, Young
O'Fallon, MO
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs,
Story
Meet Roscoe, he was found as a stray. He is very friendly and gets along with other dogs. the nice family that found him can’t keep him but is fostering him until his forever family can be found. They think he’s young, like under 2 yrs old. He’s house broke and very sweet. Plays with their poodle like they are best friends. He would need a fenced yard because he’s a critter chaser. He’s been on car rides and on walks at the park.   If you can open your home to this sweet boy, please text Nanci at 314-574-4052. Serious inquiries only. note: this is a courtesy post. Roscoe is not an All Paws Rescue dog. September 24, 2025, 12:13 pm

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

These Boxers are available for adoption close to O Fallon, Missouri.
We'll also keep you updated on Lyle (Charlie)'s adoption status with email updates.
Photo of Lyle (Charlie)

Lyle (Charlie)

Boxer Pug

Male, 5 yrs 7 mos
St. Peters, MO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with dogs, House-trained, Spayed or Neutered,
Story
LYLE aka CHARLIE Hi, I'm Lyle, but my friends call me Charlie-because why not keep it cool? I'm a 4.5-year-old Chi/Bulldog mix weighing in at 51 lbs, but let me tell you, in my head, I'm a 5 lb lapdog extraordinaire! Here's why you'll love me: Lapdog Vibes: Size is just a number, right? I'm happiest snuggling up close-your lap is my throne. Fetch Pro: Got a ball? Let's roll! Or toss, actually. I'm also a big fan of car rides with the windows down. House & Crate Trained: Polished and perfect, I've got my manners nailed down. Command Champ: "Sit, "stay, "come-I'm a smart cookie who loves to please. Dog Selective: I'm a star solo act-let's keep the love just between us, okay? Protective & Playful: I'll keep you safe, but we'll have endless fun too! All I need is a forever family where I can shine as the only pup and maybe a yard for our epic play sessions. Trust me, we're gonna have a blast! Ready to meet? Click the link below to learn more and set up a meet-and-greet. Let's make this official-your new best friend is waiting!
We'll also keep you updated on Mimi's adoption status with email updates.
Photo of Mimi

Mimi

Boxer American Pit Bull Terrier

Female, 2 yrs 7 mos
St. Peters, MO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, Spayed or Neutered,
Story
💖✨ MIMI IS READY! ✨💖 🚨 PAWS what you’re doing, hoomans… your new bestie just dropped her glow-up announcement. It’s me—Mimi! 💁‍♀️ Brindle bombshell, professional snugglebug, and future couch queen. 🎉 I’m officially DONE with my “get well soon” era and fully prepped to take on my forever family or a fabulous foster who’ll keep spoiling me like I deserve. 👑 🌟 Mimi’s Stats: 🐾 2 years young & thriving 🐶 Boxer/Pittie mix – the ultimate combo platter 🥰 💋 Snuggle pro—nap buddies wanted 🐕 Leash trained and elegant on walks (yes, I strut) 🏡 Yard preferred for zoomies & sunbathing 💦 Poolside lounging enthusiast 🩷 ⚡ Moderate energy—equal parts play & pajama party vibes 💌 Whether you’re ready to make it official (adopt me!) or just wanna be my interim hype human (foster me!), I’m here for ALL the love and snacks you’ve got. 📣 Fostering is FREE. Stray Paws brings the goods—you bring the cuddles. Win-win. 👉 Click to foster your new best girl: https://www.shelterluv.com/matchme/foster/SPRA/Dog 👉 Click to adopt and make me yours forever: https://www.straypawsrescue.com/information/210924291 #AdoptMimi #FosterMimi #BrindleBeauty #SnuggleGoals #StrayPawsRescue #CuddleTherapistOnDuty #MimiMagic
We'll also keep you updated on Penney's adoption status with email updates.
Photo of Penney

Penney

Boxer Plott Hound

Female, 3 yrs 9 mos
St. Peters, MO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, House-trained, Spayed or Neutered,
Story
~ P E N N E Y ~ Super sweet and super smart, whoever adopts Penney will be one lucky family! Crate trained, dog, cat, and kid friendly! She will steal your heart with just once glance. Penney is a survivor <3 At only 6 months old she was diagnosed with a mass on her spine when she suddenly lost the ability to walk :( She made it through surgery with flying colors and has regained use of her legs :) Dog friendly, cat friendly, kid friendly, potty trained, crate trained, and leash trained! Fill out a form to meet this cutie patootie: straypawsrescue.com/forms ~8 month old plot hound mix, 40lbs~ #adoptdontshop #adoptme #availableforadoption #rescuedismyfavotritebreed #fostersneeded #fosteringsaveslives #stlouis #stldogs #dogsofstl #whosavedwho #straypawsrescue #SPRstrong **If you would like to adopt, please fill out an adoption form which can be found on the animal's profile page at www.straypawsrescue.com
We'll also keep you updated on Dexter's adoption status with email updates.
Photo of Dexter

Dexter

Boxer Mixed Breed (Medium)

Male, 1 yr 8 mos
St Charles, MO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Spayed or Neutered,
Story
Meet Dexter! This sweet Boxer mix is as affectionate as they come—his favorite place is right in your lap. Dexter loves car rides, playing fetch, splashing in the water, and being close to his people. He has the typical boxer energy and boxer traits. He’s potty trained, does well in his crate, and sleeps through the night. Dexter already knows sit, down, place, and come—and with his love of treats, he’s eager to keep learning! He’s still practicing leash manners (sometimes he forgets and pulls), but with patience he’ll nail it in no time. He would do best in a home without little kids. If you’re looking for a snuggly best friend with tons of potential, Dexter’s your guy!!
We'll also keep you updated on Rooster's adoption status with email updates.
Photo of Rooster

Rooster

Boxer American Pit Bull Terrier

Male, 8 yrs 3 mos
O'Fallon, MO
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Not good with cats, Spayed or Neutered, Shots are up-to-date,
Story
Rooster, Male, Boxer mix, brown and white, 65lbs Rooster is a fun loving guy who loves his people! He lacks absolutely nothing in the personality department. He is all around just a happy dude. Rooster loves to run and play, so his adoptive home must have a fenced in yard. With proper intros he like making doggie friends and has been good with dogs large and small (20+lbs). Cats on the other-hand he gets a bit over excited about and needs a home without them present, Rooster likes kids, but due to being touchy about his paws, he needs a home with kids 12 and older Interested adopters must be local to the Saint Louis, MO metro area. Rooster's adoption fee is $250.00 and he is fully vetted. An application must be submitted through our website, steppingstonebully.org, to be considered
We'll also keep you updated on Roscoe- courtesy post's adoption status with email updates.
Photo of Roscoe- courtesy post

Roscoe- courtesy post

Boxer

Male, Young
O'Fallon, MO
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs,
Story
Meet Roscoe, he was found as a stray. He is very friendly and gets along with other dogs. the nice family that found him can’t keep him but is fostering him until his forever family can be found. They think he’s young, like under 2 yrs old. He’s house broke and very sweet. Plays with their poodle like they are best friends. He would need a fenced yard because he’s a critter chaser. He’s been on car rides and on walks at the park.   If you can open your home to this sweet boy, please text Nanci at 314-574-4052. Serious inquiries only. note: this is a courtesy post. Roscoe is not an All Paws Rescue dog. September 24, 2025, 12:13 pm

These pups are in O Fallon, Missouri too!

Below are our newest added Boxers available for adoption in O Fallon, Missouri. To see more adoptable Boxers in O Fallon, Missouri, use the search tool below to enter specific criteria!
We'll also keep you updated on Valentina/Mom 's adoption status with email updates.
Photo of Valentina/Mom

Valentina/Mom

American Pit Bull Terrier

Female, 2 yrs 5 mos
St. Peters, MO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, House-trained, Spayed or Neutered,
Story
Meet Valentina 💕 Now that Valentina has finished raising her babies, she’s ready to find a family of her own and finally learn what true love feels like. When she first arrived, she was underweight from not being properly fed while nursing, but she’s now on the path to steadily gaining weight and getting healthy. Valentina is a gentle, affectionate girl who loves nothing more than being close to people and snuggling up. She can be a little shy when meeting new faces, but a few treats quickly win her over. Once she trusts you, her personality shines—she even greets her favorite people with a big “smile,” showing off her teeth in the sweetest way. She’s also a dream on the leash, making walks a joy. Valentina has given so much of herself—now it’s her turn to be cherished. Could you be the one to show her the love she deserves?
We'll also keep you updated on Petey's adoption status with email updates.
Photo of Petey

Petey

American Pit Bull Terrier Labrador Retriever

Male, 4 yrs 5 mos
St. Peters, MO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with dogs, House-trained, Spayed or Neutered,
Story
PETEY! Can you believe I'm still waiting for my forever family? Let me tell you, I've got so much love to give, and I'm ready to find my perfect match! Here's a little bit about me: Weight: 54 lbs of snuggly goodness Age: 3 years young Breed: Lab Terrier Mix (aka the perfect combo!) Color: White and tan-classic and handsome, right? Why I'm the one for you: Super Affectionate: I'm basically a big ol' love bug who's always ready for cuddles. Crate Trained: I've got great house manners, no stress here! Great with Other Dogs: I love making new furry friends and having playdates! House Trained: You can count on me to be a perfect gentleman indoors. Toy Lover: I'm always up for a game of fetch or tug-of-war! Needs a Yard: I love running and playing, so a yard would be a dream come true! I'm loving my time in foster care, but I can't wait to find a forever home of my own. Could it be with you? Let's not wait any longer-I'm ready for all the belly rubs, toys, and love you can give! Want to meet me? Click the link to set up a meet and greet, and let's make this official! https://www.straypawsrescue.com/information/92396461 **If you would like to adopt, please fill out an adoption form which can be found on the animal's profile page at www.straypawsrescue.com #ForeverHomeNeeded #LabTerrierMix #PeteyThePup #DogLovers #FosterDog #AdoptPetey #RescueDogLove #RescueDog #StrayPawsRescue #AdoptDontShop #ForeverHome #StrayPawsRescue #MakeADifference #AnimalShelter #StrayPawsStrong #RescueHeroes #whosavedwho #adoptme #availableforadoption
We'll also keep you updated on Dusk's adoption status with email updates.
Photo of Dusk

Dusk

American Pit Bull Terrier Labrador Retriever

Male, 1 yr 7 mos
St. Peters, MO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, Spayed or Neutered,
Story
Meet Dusk! Dusk is one of Momma Diamond's precious Gems, and he's a true stunner with his sleek black coat. Dusk is affectionate, friendly, and full of playful energy. While he's not housetrained yet, he's eager to learn and will thrive in a home with a yard where he can burn off some of that puppy energy. Whether you're ready to foster or adopt, Dusk is looking for someone to guide him through his puppyhood and love him forever. Are you ready to be the one to start teaching this sweet boy and give him the forever home he deserves? Apply here to make Dusk part of your family! **If you would like to adopt, please fill out an adoption form which can be found on the animal's profile page at www.straypawsrescue.com

Search for a Boxer puppy or dog

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

Boxer puppies and dogs in nearby cities

Related breeds in O Fallon, Missouri

Boxer shelters & rescues in O Fallon, Missouri

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

Here are a few organizations closest to you:

Rescue

0 miles

Stray Paws Rescue

7055 Mexico Rd., Box 1663, St. Peters, MO 63376

Pet Types: cats, dogs

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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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Shelter

9.2 miles

City of St. Charles Animal Shelter

2835 W. Randolph St, Saint Charles, MO 63301

Pet Types: cats, birds, dogs, rabbits, reptiles, small animals

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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

17.4 miles

St. Louis Pet Rescue

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

Pet Types: cats, dogs

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Shelter

18.6 miles

Animal Protective Association of Missouri

1705 South Hanley Road, St. Louis, MO 63144

Pet Types: cats, dogs, rabbits, small animals

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Rescue

18.7 miles

The Feral Companion

Eureka, MO 63025

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

21.2 miles

4 Paws 4 Rescue

Fenton, MO 63026

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 Boxer puppy or dog?

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

Boxer basics

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

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