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Rat Terrier puppies and dogs in Frederick, Colorado

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

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These Rat Terriers are available for adoption close to Frederick, Colorado.
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Raven

Rat Terrier

Female, 3 yrs
Boulder, 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 Raven! Shes an 20 lbs small sized adult dog guessed to be a rat terrier mix Great with other dogs and kids! Have not cat tested yet She is a cautiously playful pup full of personality. She is curious about everything. She is very friendly after she scouts you out. She loves sniffing, scritches, and cuddles. - very food motivated and easy to train. She learned sit in a few minutes and to not enter the kitchen in a few days. - No resource guarding issues. - handles cleaning/handling of all her paws and teeth with no issues. -no reaction to loud noises like honking, ambulances, and firetrucks. - good at crating and leash walking. - very comfortable with cars and elevators - self soothes with toys - great at being a patio dog as well All in all a very versatile girl, would be a great city dog or a farm dog. Currently learning to "leave it" and to "look". All POSO Dogs come with: - Spayed/Neutered - Basic Shots (age appropriate) - Fecal and 4dx testing - other medical concerns addressed before adoption - 2 Free one on one dog training sessions with a professional dog trainer - Training received in foster home - Basic things like some food, treats, leash and collar - PDFs of training material and local coupons and dog sitter recommendations
Photo of Ziggy

Ziggy

Rat Terrier Cattle Dog

Male, 4 yrs 2 mos
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 4 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 Zoey

Zoey

Rat Terrier

Female, Young
Littleton, CO
Size
(when grown) -
Details
Good with kids, Good with dogs, Spayed or Neutered,
Story
Meet Your New Adventure Buddy! This adorable 12-week-old Rat Terrier, Chihuahua, Corgi, and Cattle Dog mix is full of personality, intelligence, and charm! Expected to stay under 35 pounds, she's the perfect small-to-medium-sized companion for an active family. Curious, playful, and social, she loves exploring, playing with toys, and making new friends. She's smart, eager to learn, and already doing well with both crate training and house training. She gets along great with people, other dogs, and respectful children ages 5 and up. Her ideal home would include an active family, a secure yard to explore, and a commitment to continued training and socialization. Another playful dog would be a bonus! If you're looking for a sweet, intelligent puppy who will bring fun, adventure, and plenty of love into your life, this little girl could be the perfect match.June 21, 2026, 7:03 pm
Photo of Rumi

Rumi

Rat Terrier

Female, Young
Littleton, CO
Size
(when grown) -
Details
Good with kids, Good with dogs, Spayed or Neutered,
Story
Meet Your New Adventure Buddy! This adorable 12-week-old Rat Terrier, Chihuahua, Corgi, and Cattle Dog mix is full of personality, intelligence, and charm! Expected to stay under 35 pounds, she's the perfect small-to-medium-sized companion for an active family. Curious, playful, and social, she loves exploring, playing with toys, and making new friends. She's smart, eager to learn, and already doing well with both crate training and house training. She gets along great with people, other dogs, and respectful children ages 5 and up. Her ideal home would include an active family, a secure yard to explore, and a commitment to continued training and socialization. Another playful dog would be a bonus! If you're looking for a sweet, intelligent puppy who will bring fun, adventure, and plenty of love into your life, this little girl could be the perfect match.June 21, 2026, 7:03 pm
Photo of Mira

Mira

Rat Terrier

Female, Young
Littleton, CO
Size
(when grown) -
Details
Good with kids, Good with dogs, Spayed or Neutered,
Story
Meet Your New Adventure Buddy! This adorable 12-week-old Rat Terrier, Chihuahua, Corgi, and Cattle Dog mix is full of personality, intelligence, and charm! Expected to stay under 35 pounds, she's the perfect small-to-medium-sized companion for an active family. Curious, playful, and social, she loves exploring, playing with toys, and making new friends. She's smart, eager to learn, and already doing well with both crate training and house training. She gets along great with people, other dogs, and respectful children ages 5 and up. Her ideal home would include an active family, a secure yard to explore, and a commitment to continued training and socialization. Another playful dog would be a bonus! If you're looking for a sweet, intelligent puppy who will bring fun, adventure, and plenty of love into your life, this little girl could be the perfect match.June 21, 2026, 7:03 pm

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Rat Terrier shelters & rescues in Frederick, Colorado

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

Here are a few organizations closest to you:

Rescue

15.2 miles

POSO Dog Rescue - Colorado

Boulder, CO 80301

Pet Types: dogs

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Rescue

20.2 miles

Farfel's Rescue

906 Pearl Street, Boulder, CO 80302

Pet Types: dogs

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Rescue

26.2 miles

Big Bones Canine Rescue

Windsor, CO 80550

Pet Types: dogs

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Rescue

38.4 miles

Paws on the Ground Colorado

Littleton, CO 80163

Pet Types: cats, dogs

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Rescue

48.5 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?

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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