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Collie puppies and dogs in Thornton, Colorado

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

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Adopt a Collie near you Collie in cities near Thornton, Colorado Other pups in Thornton, Colorado Search for a Collie puppy or dog near you Browse Collie puppies and dogs in nearby cities Browse related breeds in Thornton, Colorado Collie shelters and rescues in Thornton, Colorado Learn more about adopting a Collie puppy or dog

Adopt a Collie near you in Thornton, Colorado

We don't see any Collies available for adoption right now, but new adoptable pets are added every day. Try a different search below!

Or, how about these Collies in cities near Thornton, Colorado

These Collies are available for adoption close to Thornton, Colorado.
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Watson

Collie

Male, 3 yrs 2 mos
Littleton, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Watson is a playful dog that loves playing fetch and ball more than anything. He gets along really well with our two dogs, fully potty trained, and not possessive of food or toys. When bedtime comes he hops up on the foot of the bed and stays there quietly until morning. Loves walks and cuddles.

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Jiro

Collie

Male, 10 yrs 3 mos
Fort Collins, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Spayed or Neutered,
Story
Meet Jiro, a gentle giant with a heart as big as his paws! His age doesn't define who he is, Jiro is always ready to chase a friend playing tag! This lovable and affectionate dog has a soft, beautiful coat and eyes that truly shine when he's around people who give him the love he craves. Despite his size, Jiro is a true cuddlebug, always eager to lean in for some head pets or curl up beside you on the couch for a cozy nap. Whether you’re a seasoned dog lover or a first-time pet parent, Jiro’s contagious aura will just make you fall in love with him!

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Rylee

Australian Cattle Dog Collie

Male, 4 mos
Fort Lupton, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Spayed or Neutered, Shots are up-to-date,
Story
Meet Riley: Your Future Best FriendMeet Riley, an Australian Cattle Dog and Retriever mix who is ready to find his forever family. This handsome boy arrived at the shelter with his sister and is now looking for a home of his own. While he can be a little shy at first, he relaxes quickly once he feels safe, turning into a very affectionate dog who loves cuddles and close contact. Riley is well-behaved with other dogs at adoption events, showing polite and submissive manners around adult companions. He also has a playful, energetic side and enjoys socializing with other puppies. He offers a great balance of gentle sweetness and active puppy energy. He is currently working on his leash skills. He already walks well when following other dogs and checks in regularly by keeping an eye on his handlers. Riley is intelligent, eager to please, and takes direction easily from his humans. Because he is highly treat-motivated, he is a quick learner with excellent potential for further training.Riley will thrive in an active household that can provide regular exercise or a big yard to play in. He is ready to offer a lifetime of loyalty and companionship to his new family and who wouldn’t want to see this cute face everyday

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Angel

Great Dane Collie

Female, 8 yrs 4 mos
Denver, CO
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Good with cats, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Angle is a 4.5 Year Old Great Dane/Smooth Coated Collie Mix. She loves playing with other dogs and ignores cats, unless they want to play. She loves her people and even though she loves playing with other dogs, she really wants her human all to herself. She is also laid back and enjoys a good cuddle and chill on the couch while catching up on some TV. Angle is crate trained, enjoys toys and completely untrustworthy on free roam with high interest items (this includes expensive items; we don’t know how she knows – but she does!) If you think you are Angle's forever home, please complete an adoption application at https://www.savethegiants.com/adoption-process .

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Winnie

Border Collie Collie

Female, Puppy
Loveland, CO
Size
(when grown) Small 25 lbs (11 kg) or less
Details
Good with dogs, Not good with cats, Spayed or Neutered, Shots are up-to-date,
Story
We got Winnie last month and she has been the sweetest puppy. Unfortunately, our cat is not getting along with her and for that we need to rehome. She loves going for walks/run, fetching sticks, and playing! She’ll absolutely steal your heart. With her being a cattle mix, she needs a home that can keep up with the energy! It’s also important to know that she will need to get her shots again. The shelter we got her from did it too early. We’ll provide all paperwork and our vets info.

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Erica

Husky Collie

Female
Littleton, CO
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, House-trained, Spayed or Neutered,
Story
&#226&#156&#168 Meet Erica — Your Ride-or-Die Adventure Girl! &#226&#156&#168 If you’re looking for a best friend, shadow, and lifelong sidekick, Erica is that girl. Erica is a 4.5-5 Month old with a big personality and an even bigger heart. She’s loyal, smart, and spunky, the kind of dog who wants to be wherever you are — hiking trails, weekend adventures, or just following you from room to room like your built-in bestie.  Erica in a nutshell: A true ride-or-die companion Smart, eager, and excellent adventure material Great with dogs and people Best with older kids or kids who understand big-dog energy Already crate trained & dog-door trained (yes, already!) Would love a canine buddy to pal around with Important to know: Erica is not an apartment dog — she’s a bit of a talker when left alone and prefers a home where she has space, stimulation, and ideally another dog for company.March 9, 2026, 5:54 pm

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These pups are in Thornton, Colorado too!

Below are our newest added Collies available for adoption in Thornton, Colorado. To see more adoptable Collies in Thornton, Colorado, use the search tool below to enter specific criteria!
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Star

Australian Cattle Dog

Female, Senior
Northglenn, CO
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Needs experienced adopter, House-trained, Spayed or Neutered,
Story
Star is about 10 years old. She is GREAT with kids, gets along with other dogs, is loving and is not aggressive at all. She is getting older and will need more personal attention than we can offer. We are in and out of the house with younger kids and their activities and feel she can benefit from a family that can give her more.

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Princess

Border Collie

Female, 1 yr 2 mos
Westminster, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, Spayed or Neutered, Shots are up-to-date,
Story
Princess Tomboy here, are you curious about my unusual name? I totally understand, I’m curious about most things…let me tell you a little about myself! If I were a human, my sport would be rugby, I’m a rough and tumble girl with an active play style therefore I need another playful pup in my life (if you don’t have another dog and would consider adopting 2 check out Tuuli, she’s a real sweetheart, and we get along great in our Denver foster home; she even lets me take her toys). A fenced yard is high on my wish list as I love doing zoomies and chasing bunnies, birds, squirrels, etc. A fence helps keep me safe. I enjoy my walks and I’m learning my commands. One thing my foster mom was particularly proud of was when I picked up a chicken bone in the park, she told me to drop it, I did; this has happened twice now. Do you know how hard that is, they’re yummy. I have solid recall and walk well on leash, I’m making good progress stopping and waiting at corners and learning to sit. I love water and I’m sure hiking is something I would enjoy. I am young and need a home committed to continuing my training. I do have a snuggly side and love to curl up with my people and will sleep through the night. My wiggle butt involves my entire body when I see you. I’m such a happy girl! I know this is a lot, but I guess that’s the princess part of my name. I figure I have one shot at this forever home thing and I want to make sure it works for both of us. If I seem to be a good fit for you why wait please fill out the application and add a little joy to your life! Thanks for taking the time to read my profile love Princess Tomboy. If you're interested in meeting me please fill out an application at www.thegooddogrescue.org (If you already have an approved application, please email thegooddogrescueadoptions@gmail.com with your interest in me!) My adoption fee is $300 and I am spayed, microchipped and up to date on vaccinations ##2732831##

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Maizey

Australian Cattle Dog Mutt

Female, Adult
Thornton, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, Good with cats, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Maizey will be 8 years old this coming July. She was adopted from Lifeline Puppy Rescue. She is the best dog. She does bark to alert because of her breed, heeler mix. Otherwise she is such a good listener. Low maintenance dog. My life circumstances don’t allow me to give her the time that she deserves. Looking for a loving home that she can get the attention she deserves. Maizey has a younger sister dog, Luna, a border collie mix, that I’d like to have them adopted together, if possible.

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Search for a Collie puppy or dog

Use the search tool below to browse adoptable Collie puppies and adults Collie in Thornton, Colorado.

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Collie puppies and dogs in nearby cities

Collie Puppies near me Collie in Arvada, CO Collie in Aurora, CO Collie in Berthoud, CO Collie in Boulder, CO Collie in Brighton, CO Collie in Broomfield, CO Collie in Centennial, CO Collie in Cherry Hills Village, CO Collie in Commerce City, CO Collie in Denver, CO Collie in Edgewater, CO Collie in Englewood, CO Collie in Erie, CO Collie in Evans, CO Collie in Federal Heights, CO Collie in Firestone, CO Collie in Fort Lupton, CO Collie in Frederick, CO Collie in Golden, CO Collie in Greeley, CO Collie in Greenwood Village, CO Collie in Johnstown, CO Collie in Lafayette, CO Collie in Lakewood, CO Collie in Littleton, CO Collie in Lone Tree, CO Collie in Longmont, CO Collie in Louisville, CO Collie in Loveland, CO Collie in Milliken, CO Collie in Northglenn, CO Collie in Parker, CO Collie in Sheridan, CO Collie in Superior, CO Collie in Westminster, CO Collie in Wheat Ridge, CO

Related breeds in Thornton, Colorado

Australian Cattle Dogs in Thornton, Colorado Australian Kelpies in Thornton, Colorado Border Collies in Thornton, Colorado

Collie shelters & rescues in Thornton, Colorado

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

Here are a few organizations closest to you:

Rescue

28.1 miles

DMK Rehoming

Littleton, CO 80127

Pet Types: dogs

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Shelter

47.2 miles

Animal Friends Alliance - Taft Hill Campus Adoptions

2200 N Taft Hill Rd., Fort Collins, CO 80524

Pet Types: cats, dogs

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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 Collie puppy or dog?

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

Collie basics

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

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