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Rat Terrier puppies and dogs in Denver, Colorado

Looking for a Rat Terrier puppy or dog in Denver, Colorado? Adopt a Pet can help you find an adorable Rat Terrier near you.

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Adopt a Rat Terrier near you in Denver, Colorado

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Or, how about these Rat Terriers in cities near Denver, Colorado

These Rat Terriers are available for adoption close to Denver, Colorado.
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Miller

Rat Terrier

Male, 1 yr
Boulder, CO
Size
(when grown) Small 25 lbs (11 kg) or less
Details
Good with dogs, Good with cats, Shots are up-to-date,
Story
Arrives 9/1 young adult dog 7lbs Great with other dogs, very playful and good at sharing toys Cats - he is scared of them so while good around them probably best around a cat that will ignore him More details to come as he settles into foster home
Photo of 915 (2026) Lillian

915 (2026) Lillian

American Pit Bull Terrier Rat Terrier

Female, 2 mos
Parker, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, Spayed or Neutered,
Story
Adoption Fee: $475 When available, all animals are fixed in accordance with Colorado law, up to date on vaccines (may need boosters), and microchipped! What we know: Mom and three puppies transferred from Animal Services Center of the Mesilla Valley in NM. Mom was found with two puppies in a pipe at a data center construction/mine site and brought to the shelter. After leaving, two more puppies were found. The fourth puppy ultimately was euthanized around 5 weeks old because she wasn't gaining weight and her lungs were rattling, but the other three were healthy. From the foster: Lillian "Socks" Don't let the sweet face fool you! Lillian, affectionately known as "Socks," likes to pretend she's the shy one of the bunch. Give her about 30 seconds, though, and you'll discover she's actually a tiny bruiser who can hold her own with all of her sisters. As the littlest pup in the litter, she's packed an impressive amount of personality into a pint-sized package. She's playful, hilarious, endlessly curious, and always ready to wrestle before melting into your lap for cuddles. Lillian has the perfect mix of sugar and spice: gentle and loving one minute, fearless and full of mischief the next. If you're looking for a puppy who will make you laugh every day and then curl up beside you for a nap, Socks just might be your girl. www.coloradopuppy.org/how-to-adopt
Photo of Roxy T

Roxy T

Chihuahua Rat Terrier

Female, Young
Boulder, CO
Size
(when grown) Small 25 lbs (11 kg) or less
Details
Good with kids, Good with dogs, Good with cats, House-trained, Spayed or Neutered,
Story
Meet Roxy- only has one eye Given a Second Chance After Losing Her Home—Now Ready to Find Her Forever Family ❤️ Breed: Chihuahua / Rat Terrier Mix Gender: Female | DOB: Approximately January 2025 (1½ Years) | Weight/Size: 6 kg / 13 lbs (Small) Good With: Dogs ✔️ | Cats ✔️ | Kids ✔️ Medical: ✔️ Spayed | ✔️ Vaccinations Up to Date | ✔️ Microchipped Location: Los Angeles, California Transportation: Ozzie and Friends Rescue provides safe transportation to approved adopters throughout the United States. https://www.ozzieandfriendsrescue.org/adoptions ❤️ Personality, Breed Information & Roxy's Story Roxy never imagined she would lose the only home she had ever known. Due to circumstances beyond her control, her family made the difficult decision to surrender her to rescue. While it was a heartbreaking change, it also gave Roxy the opportunity to find a family that can offer her the lifelong stability, love, and commitment every dog deserves. Despite the transition, Roxy has remained the sweet, affectionate little girl she's always been. She has a gentle heart, a playful personality, and loves being around people. Whether she's joining you for a walk, playing with her favorite toys, or curling up beside you after a fun day, Roxy is happiest when she's spending time with the people she loves. She is friendly, social, and gets along wonderfully with children, other dogs, and even cats, making her an excellent fit for many different households. Her easygoing nature and loving personality allow her to make friends wherever she goes. As a Chihuahua / Rat Terrier Mix, Roxy combines the loyal devotion of the Chihuahua with the intelligence, curiosity, and playful spirit of the Rat Terrier. She's an alert little dog who enjoys learning new things, exploring her surroundings, and being included in everyday family life. Roxy would thrive in a home that offers: Plenty of love and companionship Daily walks and playtime Positive reinforcement training Interactive toys and mental enrichment Continued socialization A consistent daily routine A safe indoor home where she's treated as a cherished member of the family A lifetime of love, patience, and commitment Although Roxy lost one home, she hasn't lost her ability to love. She's ready to give her whole heart to a family that will make her part of theirs forever. Training, Adjustment & What to Expect Moving into a new home is a major change for any rescue dog. Roxy may need a little time to adjust to unfamiliar surroundings, new routines, and different experiences. Please remember the 3-3-3 Rule: 3 Days to decompress and begin feeling safe 3 Weeks to learn your household routine 3 Months to fully settle into family life Roxy is intelligent and eager to please, making her an excellent candidate for continued positive reinforcement training. Her new family should continue providing: Positive reinforcement training Daily exercise and interactive play Consistent routines and gentle structure Continued socialization with people and other animals Mental enrichment through toys and games Plenty of love, patience, and encouragement With kindness and consistency, Roxy will quickly blossom into a loyal, confident companion who will happily share life's adventures by your side. Owner Responsibilities & Veterinary Care Adopting Roxy is a lifelong commitment that includes providing proper veterinary care, exercise, companionship, and a loving home. As part of responsible pet ownership, Roxy will need: Annual veterinary wellness examinations Routine vaccinations as recommended by your veterinarian Monthly flea, tick, and heartworm prevention A nutritious diet to maintain a healthy weight Daily physical exercise and mental enrichment Continued training and socialization A safe, loving indoor home where she is treated as a cherished member of the family We recommend scheduling a wellness examination with your veterinarian shortly after adoption to establish care and ensure Roxy continues to live a long, healthy, and happy life. Adoption Information If you are interested in adopting Roxy, please complete an adoption application by visiting: https://www.ozzieandfriendsrescue.org/adoptions Thank you for considering adoption through Ozzie and Friends Rescue, a Los Angeles-based nonprofit dedicated to giving dogs a second chance at a loving home. Every application is carefully reviewed to help ensure the best possible match between each dog and their future family. Although we are based in Los Angeles, California, we proudly coordinate safe and reliable transportation for approved adopters throughout the United States, helping deserving dogs like Roxy find loving homes no matter where they live. Roxy's first chapter may have ended with the loss of her home, but her story is far from over. She's ready to begin a new chapter with a family who will love her, treasure her, and make sure she'll never have to wonder where she belongs again. ❤️August 29, 2026, 12:56 pm
Photo of Penguin T

Penguin T

Jack Russell Terrier Rat Terrier

Male, Young
Boulder, CO
Size
(when grown) Small 25 lbs (11 kg) or less
Details
Good with kids, Good with dogs, Good with cats, House-trained, Spayed or Neutered,
Story
Meet Penguin Male DOB: May 19, 2023 Weight: 22 lbs Breed: Jack Russell Terrier / Rat Terrier Mix Neutered (Fixed) Vaccinated Microchipped Healthy & Adoption-Ready Personality, Breed Info & Expectations Penguin is an outgoing, friendly little guy with a fun personality and a big zest for life packed into a small body. He loves being around people, enjoys interaction, and carries himself with the confident, entertaining energy Terrier lovers know and adore. He has matured beautifully into a lively companion who still enjoys playtime and activity while also loving affection and companionship from his humans. Penguin thrives when he feels included and part of the action. As a Jack Russell Terrier / Rat Terrier mix, Penguin may show traits such as intelligence, curiosity, alertness, and playful energy. Both breeds are known for being highly engaging, clever little dogs who enjoy staying mentally and physically active. Penguin would thrive in a home that can provide: Daily walks and playtime Mental stimulation and engagement Structure and consistency Companionship and inclusion as part of the family He would make a wonderful companion for someone looking for a social, entertaining, and affectionate dog with lots of personality. Training, Adjustment & What to Expect Many rescue dogs come from very different backgrounds. Some may have previously lived in homes, while others may have come from the streets, overcrowded shelters, neglect situations, or environments where they had little structure or guidance. Because of this, most rescue dogs arrive with only basic training at best, and some may have had no formal training at all. Even dogs who appear well-behaved in foster care or at the rescue are still adjusting and learning. The rescue environment itself also does not always allow for extensive one-on-one training. While we work hard to provide safety, structure, socialization, and basic guidance, adopters should be prepared to continue training and support after adoption. Penguin will benefit from: Positive reinforcement training Structure and consistency Continued socialization and engagement Mental stimulation and routine Patience during adjustment periods Please remember the 3-3-3 Rule: 3 days to decompress 3 weeks to learn your routine 3 months to fully feel at home With patience, stability, and commitment, rescue dogs often blossom into deeply loyal lifelong companions. Owner Responsibilities & Veterinary Care Owning a dog is a lifelong commitment that includes daily exercise, companionship, routine veterinary care, training, mental stimulation, and financial responsibility. Penguin will need: Daily walks, exercise, and interaction Continued training and engagement Routine wellness exams and preventative veterinary care A safe, stable, indoor living environment Consistent veterinary care, proper nutrition, preventative care, and emotional stability are all essential to helping him live a healthy and happy life. Penguin is an indoor family dog and is not to be chained or left outside. Adoption Information If you are interested in adopting this wonderful dog, please complete an adoption application by visiting: https://www.ozzieandfriendsrescue.org/adoptions Thank you for considering adoption through Ozzie and Friends Rescue, a Los Angeles–based rescue dedicated to giving dogs a second chance at a loving home. Our team carefully reviews every application and will reach out to help match you with the right dog for your home and lifestyle. You may be seeing our dogs listed in multiple states because we work hard to give as many of our rescue dogs as possible the opportunity to be seen by loving families beyond our local area. While we are based in Los Angeles, we expand our reach throughout the Western United States and the Midwest to help more dogs find the forever homes they deserve. We understand that transportation and adoption fees can sometimes feel like a big commitment, and we truly appreciate every person who considers opening their heart and home to a rescue dog. Our goal is simply to give these dogs the best chance at being seen, adopted, and loved. Ozzie and Friends Rescue coordinates safe and reliable transport so adopted dogs can travel to their new homes across the Western United States, Canada, and the Midwest. We can’t wait to help you meet your next fur-ever best friend.August 29, 2026, 12:56 pm

These pups are in Denver, Colorado too!

Below are our newest added Rat Terriers available for adoption in Denver, Colorado. To see more adoptable Rat Terriers in Denver, Colorado, use the search tool below to enter specific criteria!
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Photo of Stella

Stella

Jack Russell Terrier Mixed Breed (Medium)

Female, 2 mos
Denver, CO
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
Meet Stella – Tiny, Terrific & Totally Adorable! Say hello to Stella, a 14-week-old tiny Terrier mix with a gorgeous black-and-tan coat and a personality that is already much bigger than she is! This little girl is proof that the best things really do come in small packages. Terrier mixes are known for being smart, curious, energetic and entertaining, and Stella is happily embracing her terrier heritage! She is at that wonderful puppy age where everything is exciting—new people, new toys, new smells and, of course, all the important puppy business like zoomies, playtime and figuring out what she can possibly chew next. Stella is a sweet little girl who is looking for a family ready to enjoy all the fun that comes with raising a puppy. She'll need continued guidance with house training, manners and learning the rules of the world, but that's part of the adventure! With patience, consistency and plenty of love, this tiny girl is going to grow into a wonderful companion. Her black-and-tan coloring, petite frame and adorable terrier face make her pretty hard to resist—and that happy puppy personality doesn't hurt either!  If you would like to adopt, please complete an application at: https://www.circle2rescue.com/dog-adoption-application/ Adoption fee: $400 which includes spay, vaccinations, deworming, and a microchip.  ##2829323##
Photo of Princess

Princess

Jack Russell Terrier Whippet

Female, 10 mos
Denver, CO
Size
(when grown) Small 25 lbs (11 kg) or less
Details
Good with kids, Good with dogs, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Meet Princess, a petite little charmer who may just be the perfect size for someone looking for a dog who is small enough to take everywhere but has plenty of personality and stamina packed inside!  Princess is an adorable 10-month-old SMALL Terrier / Whippet mix weighing just 20 pounds. She appears to be mostly terrier, but because she is a Navajo Reservation rescue, we’re pretty sure her DNA has a few fun surprises hiding in there. Whatever she is, she sure is cute. When she was first found she was mistaken for a puppy because she is so small. At 20 pounds and already 8–12 months old, Princess is likely close to her adult size, making her a wonderfully petite companion. And this little girl is all about making friends! Princess absolutely loves people and has never met a human she didn’t like. Strangers? No problem. New friends? Bring them on! She happily greets everyone with a wagging tail and she steals hearts with her charming personality. At the vet office the vet said, oh my, what a good one this girl is! She is equally wonderful with her canine companions. Princess gets along fabulously with the adult dogs in her foster home as well as the two younger puppies, so she has demonstrated that she knows how to fit right into a busy doggy household. Princess is also doing beautifully with all the basics. She is leash trained, crate trained and house trained in her current routine. She is smart, eager to please and very responsive to encouragement. Give her a little praise and she is ready to show you what a good girl she can be! We think Princess is the kind of dog who will make someone smile every single day. She’s petite, social, affectionate, playful and wonderfully adaptable—with just enough mystery in her family tree to keep things interesting. Princess is ready for her happily-ever-after. All she needs now is a family who will appreciate her sweet personality, include her in the fun and remind her every day just how special she is. If you would like to adopt, please complete an adoption application at https://www.circle2rescue.com/dog-adoption-application/   Adoption Fee: $300, which includes:  Spay  Age-appropriate vaccinations  Deworming  Microchip ##2819796##
Photo of Buttercup

Buttercup

Jack Russell Terrier

Female, Puppy
Denver, CO
Size
(when grown) Small 25 lbs (11 kg) or less
Details
Good with kids, Good with dogs, Good with cats, Shots are up-to-date,
Story
****ADOPTION APPLICATION HERE*** Hi, my name is Buttercup and I'm a 9 week old Jack Russell terrier mix. I am such a sweet girl and I love to play with my doggy friends and cuddle with my foster Mom. One of my favorite activities is playing in the water as well as having my belly rubbed. I am looking for my forever home and would make a wonderful addition to any family. To find out more information on this dog please apply to adopt on our website at http://www.caretx.org/adopt and CARE will be in touch with you ASAP! This dog was rescued from a kill shelter or the streets and has been evaluated for medical and temperament to prepare for a forever home and is in a foster home in San Antonio, Texas* and is ready to fly to its final destination once adopted. The adoption fee of $995 covers age appropriate vaccinations, micro chip, health certificate, the kennel it travels in and air transport*. * CARE rescue is in San Antonio, TX where we have a serious pet overpopulation situation. CARE is a non profit 501c3 rescue that has been saving lives for 14 years and with your adoption, we can help save even more deserving urgent adoptable pets! We fly our pets to approved adopters all over the US, especially in low kill and no kill markets where there is a demand for rescue pets!

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Rat Terrier shelters & rescues in Denver, Colorado

There are animal shelters and rescues that focus specifically on finding great homes for Rat Terrier puppies in Denver, Colorado. Browse these Rat Terrier rescues and shelters below.

Here are a few organizations closest to you:

Rescue

25.1 miles

POSO Dog Rescue - Colorado

Boulder, CO 80301

Pet Types: dogs

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

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

Rat Terrier basics

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

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