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Rat Terrier puppies and dogs in Thornton, Colorado

Looking for a Rat Terrier puppy or dog in Thornton, 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 Thornton, Colorado

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These Rat Terriers are available for adoption close to Thornton, Colorado.
Photo of Raven

Raven

Rat Terrier

Female, 4 yrs
Boulder, CO
Size
(when grown) Small 25 lbs (11 kg) or less
Details
Good with dogs, Spayed or Neutered, Shots are up-to-date,
Story
Coming 6/4 Was super skinny and shy at the shelter Good around other dogs More detials to come
Photo of Ziggy

Ziggy

Rat Terrier Cattle Dog

Male, 4 yrs 1 mo
Boulder, CO
Size
(when grown) Small 25 lbs (11 kg) or less
Details
Good with dogs, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Meet Ziggy! Previously named Bixby, now Ziggy, is a handsome, 4 year old, 27 lb Rat Terrier / Cattle Dog mix who has been through more in his life than any dog should. Ziggy was found as a stray and brought into a horrible, high-kill shelter in Houston TX. He was adopted locally, and then months later ended up back in the shelter as a stray again. When they called the man who adopted him from them just months ago, they got no answer and no call back. Ziggy’s past has clearly been unstable. We rescued Ziggy and brought him to Colorado with the hope of finally giving him the stable, loving home he has always deserved...and for a while, we truly thought we had found that for him. Unfortunately, just four months after his adoption, Ziggy is being returned due to a newly discovered allergy within the household. Our hearts break for Ziggy to have to go through this transition again, but he is back with our rescue and once more searching for the forever home he has been waiting for. From Ziggy's foster: * * * * "Ziggy really is a very good boy. He can be a bit shy at first with new people. But once he settles in, his personality really starts to shine. In a home environment, he is very affectionate, funny, and incredibly sweet. He loves cozy spots (especially the couch and bed!), enjoys watching the world from the window, and lives for his time outside in the yard, zooming around, playing with my dog, sunbathing, and chasing squirrels along the fence line. He’s a smart boy who already knows commands like “sit” and even how to catch treats mid-air. Ziggy has shown that he can be friendly and playful with other dogs in the right setting. Off leash and in a home environment, he has done well and even thrived — he was wonderful with a tiny puppy foster we had, and loves my dog. Ziggy just does not do well meeting other dogs while leashed, so he will need an adopter who understands leash management and can advocate for his space on walks. Because he does enjoy other dogs in a more natural setting, we do feel he would do best in a home with another friendly dog to help him feel more secure. Since neighborhood walks aren't ideal for Ziggy, he would be best going to a home with a big yard for him to play, exercise, and potty in. Because Ziggy has experienced so much instability and change in his life, he will cry or howl when left alone. Luckily though, he is not destructive in any way. Ziggy can be trusted loose in the home when left alone, has never chewed or damaged anything, and does settle with time. Due to his vocalizing when left alone, an apartment or shared-wall living situation would not be the best fit for Ziggy. Ziggy will thrive in a calm home with someone retired, or who is a homebody. He himself is much more of a homebody who bonds deeply with his people and prefers a predictable routine. Oh and he is totally, 100% potty trained!" * * * * Ziggy is in great health and is vaccinated, neutered, and heartworm tested. He is blind in just one eye due to what appears to be an old corneal scar, but it does not cause him pain and he navigates the world just fine with his good eye. Ziggy’s story hasn’t been easy, but his potential is huge. With the right person - someone patient, loving, dog-savvy, and committed to giving him the time, structure, and love he needs - Ziggy will thrive, and deeply bond with you. He doesn’t need perfection—he just needs someone who won’t give up on him. Farfel's Rescue would like to see Ziggy in a home with someone committed to training. A virtual or in-person positive reinforcement group training class promotes great behavior, bonding and confidence for a sweet pup whose self-esteem will fly high while he masters his skills. Training is so important in the future behaviors of every dog. It's for this reason that we're unwilling to adopt Ziggy out to a family that doesn't make this loving choice. Farfel's is happy to provide a list of both in-person and virtual positive reinforcement / force- free trainers in your area. Ziggy is available for adoption now! Applications are currently being accepted for this very sweet, loving and loyal best friend. An application can be found at http://farfels.com/farfels-rescue/adoption-form/. If interested, please fill out completely and submit. **PLEASE NOTE** If you're truly interested in adopting Ziggy please be sure to fill out our Farfel's Rescue adoption application found at the link above or at farfels.com. Adoption site applications such as Petfinder and Adoptapet don't provide enough information and therefore aren't useful. Our Farfel's application is the only initial tool that we have to determine a great match for this very deserving dog.
Photo of Boss

Boss

Rat Terrier

Male, 1 yr 3 mos
Windsor, CO
Size
(when grown) Small 25 lbs (11 kg) or less
Details
Good with dogs, Spayed or Neutered,
Story
Meet Boss — Fort Collins, CO 🐶🤎 Have you ever watched a shy dog slowly realize that humans can be kind? It is one of the most beautiful things to witness. Boss is a spunky, Approximately 1 year-old Rat Terrier with the most heart-melting eyes and the funniest little personality. He is approximately 10-12 lbs. He is part comedian, is learning to be cuddler, and full of potential. When Boss first arrived, he was very unsure of people. He likely never experienced gentle human touch before. But once he trusts you? He absolutely melts. He loves being rocked in a rocking chair, lightly pet, and even given little kisses on his head. He follows his foster mom everywhere and is learning how wonderful snuggly beds and couch blankets can be. He is still a bit skittish and will need someone patient who can go at his pace — but this sweet boy is SO worth it. Boss highlights: • Loves to run zoomies and laps in the yard Loves to chew on toys, sticks and pinecones • Big foodie (treat motivated!) • Hilarious, playful personality • Great with other dogs • Sleeps through the night in his kennel • Would thrive in a home with a yard and a playmate. • Not leash trained yet He is currently fostered in Fort Collins with a professional dog trainer who specializes in helping shy, unsocialized dogs gain confidence. The amazing part? She is offering a free training session to his adopter. This is not basic obedience — it is a confidence-building session designed to help you and Boss bond and help him transition successfully into your home. He would likely do well with: • A confident canine buddy (not required, but helpful!) • Older or calm children • Not sure about cats because the foster does not have any. Boss came from Oklahoma and deserves a fresh start full of patience, kindness, and safety. He is going to be incredibly loyal to his person — Rat Terriers are known for that. If you have a yard, a gentle heart, and room for a little shadow who will follow you everywhere… Boss may be your guy. Please consider giving this handsome boy his FurEver family 🤍 Apply today to meet Boss.
Photo of Zeke

Zeke

Rat Terrier

Male, Senior
Georgetown, CO
Size
(when grown) Small 25 lbs (11 kg) or less
Details
Not good with kids, Good with dogs, Not good with cats, House-trained, Spayed or Neutered,
Story
Zeke is a quiet gentleman looking for a home to spend his golden years. He enjoys sunbathing, short leisurely walks and naps in a comfy bed. Zeke would be fine as an only pet or with one other dog his size. He needs a home with no children. He would love a yard to stroll in and enjoy the sunshine. An adoption application can be completed at www.hfaccr.org COLORADO ADOPTION ONLY May 19, 2026, 12:03 am
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, 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.May 20, 2026, 4:48 pm
Photo of Dot

Dot

Chihuahua Rat Terrier

Female, Young
Golden, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Spayed or Neutered,
Story
This little Dot will make a huge impact on your life! She's happy and playful, with just the right amount of caution built in as she experiences things for the first time. Stop by and meet Dot today! Primary Color: Black Secondary Color: White Weight: 16.6 Age: 0yrs 8mths 0wks

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Rat Terrier shelters & rescues in Thornton, Colorado

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

Here are a few organizations closest to you:

Rescue

17.1 miles

POSO Dog Rescue - Colorado

Boulder, CO 80301

Pet Types: dogs

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Rescue

21.6 miles

Farfel's Rescue

906 Pearl Street, Boulder, CO 80302

Pet Types: dogs

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Rescue

35.9 miles

Big Bones Canine Rescue

Windsor, CO 80550

Pet Types: dogs

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Rescue

45 miles

Hope For Animals-Clear Creek Rescue

POB 63, Georgetown, CO 80444

Pet Types: dogs

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

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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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