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Collie puppies and dogs in Boulder, Colorado

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

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Adopt a Collie near you in Boulder, 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 Boulder, Colorado

These Collies are available for adoption close to Boulder, Colorado.
Photo of Nelson

Nelson

Collie Mixed Breed (Medium)

Male, 7 mos
Denver, 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
Meet Nelson! This Collie mix is impossible to miss with his striking blue eyes and happy-go-lucky personality. After making the journey from a shelter in Kansas, Nelson is quickly learning that the good life is pretty great. Nelson is curious, playful, and always ready for his next adventure. He's a total rockstar on leash and loves getting out to explore and meet new people. Whether it's a neighborhood stroll, a mountain hike, or a trip to your favorite brewery patio, this boy is happy just being part of the fun. He's also doing great with potty training and is making progress with crate training. He sleeps in his crate overnight like a champ, though he'd definitely prefer to be wherever his people are. Super smart, goofy, and incredibly sweet, Nelson is the kind of puppy who will keep you laughing while stealing your heart at the same time. He's at the perfect age to continue learning, growing, and becoming your very best friend. All he needs now is a forever family ready to show him that life's greatest adventures are the ones shared together. Could Nelson be your new adventure buddy? ##2771090##
Photo of Page

Page

Collie

Female, Adult
Lakewood, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Not good with dogs, Good with cats, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Page is a 7-year-old Collie mix who we adopted as a 6-month-old puppy. She is cuddly, adventurous, and athletic, and she has lived with our older dog, two cats, and chickens ever since. Recently, Page has led us to believe she would do best as the only dog in the household.Page is:• Housetrained, spayed, and microchipped• Cuddly, loving, and adventurous• Good with cats and chickens• Athletic and loves running, hiking, and swimming• Looking for a home where she can be the only dogShe loves to carry her stuffy toys from the toy box to the bedroom to let us know it’s time for bed. She would love someone who will take her on walks and adventures and spoil her with love and attention.💰 Rehoming fee: $50Includes: Her favorite stuffy toys
Photo of Millie Courtesy Listing

Millie Courtesy Listing

Collie

Female, Adult
Evergreen, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
House-trained, Spayed or Neutered, Shots are up-to-date,
Story
All people inquiring about pets listed as Courtesy Listings on the EAPL website and/or EAPL posting adoption boards should contact the current pet owner/rescue/shelter for answers to any questions and for final approval and placement. Please do not contact EAPL  about courtesy listings. The pet owner/rescue/shelter and new owner shall make all arrangements on transferring the pet, including information on history, vaccines, etc.    Please contact  Jamie 720.560.5430   Hey there! I'm Millie, a 3-year-old black Collie mix, and I'm ready to steal your heart with my affectionate nature  . I'm a medium-sized girl weighing about 50 pounds, and I love making new friends — my friendly personality means I'm always happy to meet you! The best part? Your adoption includes my spay surgery, so you won't have any additional costs to worry about  . Come visit me soon and let's start our next adventure together!  Please call Jamie  720.560.5430 for any rehoming information September 14, 2026, 2:43 pm
Photo of Mallory

Mallory

Collie Australian Shepherd

Female, 2 mos
Denver, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, Good with cats, House-trained,
Story
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Photo of Agatha

Agatha

Collie Great Pyrenees

Female, Adult
Castle Rock, CO
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Spayed or Neutered,
Story
Sweet big girl looking for a loving home.Agatha is a doll. She is about 2 years old, spayed, vaccinated, chipped and heartworm negative!  She clearly didn't have the best home before but should look amazing by next year!  We got her with fleas, ticks, and so many sores but she already looks so much better.  She is good with dogs, loves people, good in the car and ready to go home!  If you want more info on Agatha, please text me, Lisa 720.339.4040.  EDIT** I added two new pictures of her with her new weight gain and hair coat and she is GORGEOUS! A new woman!! Or to fill out an application please copy and paste the link to follow https://coloradoanimalwelfare.com/adoptions/adoption-application/#page-content  September 11, 2026, 11:10 am
Photo of Pakchoi

Pakchoi

Australian Cattle Dog Collie

Female, 3 mos
Fort Lupton, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Spayed or Neutered, Shots are up-to-date,
Story
Beautiful and sweet pup with a touch of shy. good with other dogs and will thrive in a hands-on home that is active to moderately active. mom is an Australian shepherd mix, but we expect this pupTo be 50-70 Pounds when full grown

These pups are in Boulder, Colorado too!

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

Hassan

Australian Kelpie Siberian Husky

Male, Adult
Boulder, 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
Meet Hassan Breed: Husky / Kelpie Mix Sex: Male DOB: July 17, 2022 Weight: 66 pounds Health: Healthy and vaccinated Hassan is a striking, intelligent boy with soulful eyes and a strong, resilient heart. He was abandoned and rescued from a very busy roadway, where he was dangerously close to being hit by cars. Thankfully, he was saved in time — and now he’s ready for the safe, loving forever home he deserves. Despite his difficult beginning, Hassan has remained loyal, playful, and full of life. Personality Hassan lives peacefully with other dogs and enjoys being around humans. He loves going out for walks, running, and exploring the world around him. Playtime is one of his favorite things — especially chasing a ball or carrying around plush toys. When he first meets new people, Hassan can be a little reserved or cautious. But once he gets to know you, his personality softens beautifully, and he becomes affectionate and loyal. He just needs a little time to feel secure. Hassan does not like sharing his food, so he would do best in a home where feeding routines are managed thoughtfully and respectfully. Breed Info: Husky / Kelpie Mix This is a smart, athletic mix that typically brings: High intelligence and problem-solving ability Strong loyalty to their people Active energy that thrives with exercise A desire for engagement and purpose Hassan will do best in a home that enjoys walks, outdoor time, and mental stimulation. Owner Responsibilities Hassan will thrive with: Daily exercise (walks, running, play sessions) Continued positive reinforcement training Clear structure and consistency Managed feeding routines due to food guarding Patience while he builds trust with new people He is not difficult — he simply needs leadership, routine, and love. &#226&#154&#160&#239&#184&#143 Things to Consider Before Adopting Before bringing Hassan home, please consider: Do you have time for daily exercise and enrichment? Is your home and lifestyle stable long-term? Are pets allowed where you live? Can you provide structure and manage feeding separately if needed? Adoption is a lifelong commitment, especially for an active breed mix Hassan deserves a home that won’t give up on him. Vet Care Although Hassan is healthy and vaccinated, adopters should schedule a visit with their own veterinarian as soon as possible after adoption to establish care and continue his wellness routine. The 3-3-3 Rule First 3 days: Hassan may be cautious and observant as he adjusts. First 3 weeks: He’ll begin to learn your routine and feel secure. First 3 months: Trust deepens, and his loving, loyal personality truly shines. Patience and consistency will help him flourish. Why Hassan Is Special Hassan survived being abandoned and left in danger — yet he still chooses trust. He is playful, intelligent, and deeply loyal once he bonds. He deserves stability, safety, and someone who will show him that he is finally home for good. If you’re ready for an active, devoted companion who will stand by you with loyalty and heart, Hassan is waiting for you If you are interested in adopting this amazing dog, please follow the link https://www.ozzieandfriendsrescue.org/adoptions and fill out an application  Thank you for choosing Ozzie and Friends Rescue. We can’t wait to connect you with your new fur-ever friend. Ozzie and Friends Rescue makes arrangements for all dogs adopted to be transported all across the Western United States, Canada and the Midwest.   March 7, 2026, 9:29 am
Photo of Willow

Willow

Australian Kelpie Terrier (Unknown Type, Medium)

Female, Puppy
Boulder, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs,
Story
Meet Willow A Tiny Survivor with a Bright Future Waiting Ahead ❤️ Breed: Australian Kelpie Mix Gender: Female | DOB: May 01, 2026 | Weight/Expected Size: 27 lbs (Expected Medium) Good With: Dogs ✔️ | Cats: Unknown | Kids ✔️ Medical: ✔️ Spay Pending (Age-Appropriate) | ✔️ Current for Age Vaccinations | ✔️ 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 & Willow's Story Willow's story is one of resilience and hope. She was found starving and alone, trying to survive without her mother or anyone to protect her. At just seven weeks old, she should have been learning, playing, and feeling safe—not searching for food or shelter. Thankfully, rescuers stepped in before it was too late, giving Willow the chance to experience the love and care every puppy deserves. Today, Willow is a healthy, happy puppy whose joyful personality shines brighter every day. She has an affectionate heart and a playful spirit that's impossible not to love. She enjoys discovering new things, playing with toys, and bouncing around with puppy enthusiasm before happily settling down for cuddles. Willow loves people and enjoys being close to her family. She'll gladly follow you from room to room, eager to see what you're doing and hoping to be included in every adventure. Her sweet, trusting nature makes her an easy puppy to fall in love with. As an Australian Kelpie Mix, Willow is expected to grow into an intelligent, loyal, and energetic companion. Kelpies are highly trainable, eager to please, and thrive when given both mental and physical enrichment. With early socialization and positive reinforcement, Willow has everything she needs to become an incredible family dog. Willow would thrive in a home that offers: Plenty of love and companionship Positive reinforcement training Daily puppy playtime and exercise Interactive toys and mental enrichment Continued socialization A consistent daily routine A safe indoor home where she's treated as part of the family A lifetime of love, patience, and commitment Willow has already survived more than any puppy should have to face. Now she's ready to spend the rest of her life knowing what it feels like to be safe, loved, and truly home. Training, Adjustment & What to Expect Like all puppies, Willow is learning something new every day. Her new family should expect normal puppy behaviors such as chewing, teething, house-training, and plenty of curiosity. 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 Willow will benefit from: Positive reinforcement training House-training and consistent routines Puppy-safe exercise and supervised play Continued socialization Enrichment activities and interactive toys Plenty of patience, love, and encouragement With guidance and consistency, Willow will grow into a confident, affectionate, and devoted companion. Owner Responsibilities & Veterinary Care Bringing home a puppy is a lifelong commitment that includes training, veterinary care, exercise, and companionship. Willow will need: Completion of her puppy vaccination schedule Spaying when age-appropriate Monthly flea, tick, and heartworm prevention A nutritious diet for healthy growth Daily exercise appropriate for her age Continued obedience training and socialization A safe, loving indoor home We recommend scheduling a wellness examination with your veterinarian shortly after adoption to establish care and ensure Willow continues to thrive. Adoption Information If you are interested in adopting Willow, 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. We proudly coordinate safe transportation for approved adopters throughout the United States. Willow has already shown incredible strength for such a tiny puppy. Now all she needs is a forever family to fill the rest of her story with love, happiness, and unforgettable memories. ❤️        September 14, 2026, 2:23 pm
Photo of Mr. Oreo

Mr. Oreo

Australian Cattle Dog Catahoula Leopard Dog

Male, Adult
Boulder, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, Spayed or Neutered,
Story
Meet Mr. Oreo Male Age: 7/23/2022 Weight: 42 pounds Breed: Australian Cattle / Catahoula Leopard mix  Neutered (Fixed): Yes Vaccines: Up to Date Microchipped Healthy & Adoption-Ready Personality, Breed Info & Expectations Mr. Oreo's life hasn't always been easy. At some point, the family he trusted was no longer able to care for him, and he found himself without the security of a home or the comfort of someone who loved him. Like so many wonderful dogs, he didn't understand why his world had suddenly changed. Yet through it all, Mr. Oreo never stopped believing that kindness still existed. When he arrived at our rescue, it didn't take long for everyone to fall in love with him. His tail wagged the moment someone spoke to him, and despite everything he had lost, he greeted each new day with hope instead of fear. Dogs like Mr. Oreo remind us that love can survive even the hardest chapters of life. Mr. Oreo is a loving, happy boy who simply enjoys being with people. He has a warm, affectionate personality and is happiest when he can be close to his family. Whether it's joining you for a morning walk, relaxing at your feet while you watch television, or greeting you at the door after work with a wagging tail, Mr. Oreo is the kind of dog who makes a house feel like a home. He has reached a wonderful stage in life where he is playful without being overly energetic. He enjoys getting outside for walks and adventures but is equally content spending quiet evenings cuddling with the people he loves. His calm, joyful personality makes him a wonderful companion for families, couples, or individuals looking for a loyal best friend. Mr. Oreo would thrive in a home prepared for: Daily walks and moderate exercise Plenty of love and companionship Positive reinforcement training Mental enrichment through toys and interactive activities Structure, consistency, and routine A lifelong commitment to his emotional and physical well-being Mr. Oreo has already experienced what it feels like to lose a home. Now he's hoping to find a family that will promise him something he's waited his whole life for—a forever home where he'll always be loved, always be safe, and never have to wonder if he's wanted again. Training, Adjustment & What to Expect Like many rescue dogs, Mr. Oreo may need a little time to adjust to a new home, routine, and environment. Even the happiest dogs benefit from patience as they learn where they belong. Mr. Oreo is eager to bond with his family and responds well to kindness, consistency, and positive reinforcement. Continuing his training and daily routine will help him settle in quickly and build confidence. Mr. Oreo will benefit from: Positive reinforcement training Daily walks and regular exercise Continued socialization Mental stimulation through toys and games Consistent routines and clear expectations Patience, encouragement, and love 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 and love, Mr. Oreo will quickly show you just how wonderful a rescue dog can be. Owner Responsibilities & Veterinary Care Owning a dog is a lifelong commitment that includes training, companionship, exercise, and routine veterinary care. Mr. Oreo will need: Routine veterinary care and annual wellness examinations Preventative flea, tick, heartworm, and parasite protection Proper nutrition to maintain a healthy weight Daily exercise and mental enrichment Continued positive reinforcement training A safe, stable indoor living environment Consistent veterinary care, daily exercise, and plenty of love will help Mr. Oreo continue living a healthy, happy life for many years to come. Mr. Oreo 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.September 14, 2026, 2:23 pm

Search for a Collie puppy or dog

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

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Collie shelters & rescues in Boulder, Colorado

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

Here are a few organizations closest to you:

Rescue

24.5 miles

A Friend of Jack Rescue

Denver, CO 80223

Pet Types: dogs

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Rescue

27.1 miles

Evergreen Animal Protective League

PO BOX 2517, Evergreen, CO 80437

Pet Types: cats, dogs

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Rescue

31.6 miles

Blues City Animal Rescue -DENVER, CO- Transport Stop

Denver, CO 80014

Pet Types: dogs

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Rescue

47.1 miles

Colorado Animal Welfare League

200 S. Wilcox St. #121, Castle Rock, CO 80104

Pet Types: cats, dogs

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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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