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Mutt puppies and dogs in Boulder, Colorado

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

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Adopt a Mutt near you in Boulder, Colorado

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

Or, how about these Mutts in cities near Boulder, Colorado

These Mutts are available for adoption close to Boulder, Colorado.
We'll also keep you updated on Harley's adoption status with email updates.
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Harley

Mutt

Female, Adult
Denver, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Not good with dogs, Needs experienced adopter, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
This is Harley! She's going to be 5 in April and we've been together for the past 4 years. I originally adopted her in Charlotte, NC and she's been the best companion moving states and adventuring every chance we can get. Harley has always been an anxious dog, usually timid to come up to new people and show her fun side until she feels comfortable. Recently her anxiety has turned a bit more aggressive towards dogs and unfortunately between traveling for work and living with other dogs, it's getting to be harder and harder for me to provide her with an environment where she doesn't have to worry about that anxiousness, and she can be the fun and loving dog I know she can be. I think it'd be best for her to be in a home with no other dogs, or with someone who really understands how to tackle some of those behavioral issues she experiences from the anxiety.

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We'll also keep you updated on Remy's adoption status with email updates.
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Remy

Mutt Labrador Retriever

Male, Young
Denver, 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
Looking for a new home for our sweet boy Remy. We got him about 6 months ago from a foster family and he was originally brought to CO from TX via Save Texas K9s. He's a male, mixed-breed (we suspect mostly Lab and Pitty), about 55 lbs and roughly 18mos old though we can't be completely certain on his age. He is neutered and vaxed and we give him monthly treatments of Simparica Trio. We are in Denver and are looking for a family not another rescue, if possible. About Remy: He is the sweetest dog we've ever had. Very loyal and gentle temperament, and wonderful around kids (we have a 10yo boy). He loves to cuddle and gives lots of kisses, but is also very playful when given the opportunity. Crate trained, and has learned to ring a bell at the door to go do business outside. Also great with basic commands (come, sit, stay, wait, down).

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We'll also keep you updated on Gracey's adoption status with email updates.
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Gracey

Mutt

Female, Adult
Denver, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Not good with kids, Not good with dogs, Not good with cats, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
We rescued sweet Gracey out of a bad situation 5 years ago and she has been a part of our pack ever since. Everyone who meets her instantly falls in love (including our new baby – who Gracey adores). Unfortunately, in recent months she and our two older (female) dogs have started to not get along and we have had to separate them. Gracey is an active, curious, and intelligent dog and this has been hard on her. She is the sweetest gal: deeply loyal, loves pets and belly rubs, always up for an adventure. She loves hiking, walks around the neighborhood, running, or just playing with her toys and having a good snuggle. We are both in healthcare so she is used to long naps during the day while she waits for us to get home from work. Gracey does well with dogs outside of the home; she stays at a doggy daycare when we travel and loves it. To help ease her transition Gracey will do best in a home with no dogs or kids.

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We'll also keep you updated on Cooper's adoption status with email updates.
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Photo of Cooper

Cooper

Mutt German Shepherd Dog

Male, Young
Littleton, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Not good with kids, Not good with dogs, Not good with cats, Needs experienced adopter, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Cooper was adopted as a puppy from the dumb friends league and is now (8) months old. The original owner returned him because she said he’s too hipper and needs a lot of outdoor time which she can’t provide. She was told they would most likely have to put him to sleep because he’s so hipper. I felt bad for him so I paid the release fee and vowed to find a home for him. I have two little chihuahua mixed dogs whom definitely don’t accept him, even though he only wants to play them they simply want nothing to do with him. He is a very sweet dog and loves to play, walk hike and actually does play very well with other dogs in the dog park. He’s very smart and learns quickly. He understands; sit, hand shake (left paw) and my grandson taught him to lay down. He picks up real quick on routine and likes riding in the car. He’s okay with me but does better with a male master - seems to respect & obey my sons command immediately, but unfortunately my son’s schedule prevents him from taking Cooper

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We'll also keep you updated on Lexi's adoption status with email updates.
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Lexi

Mutt

Female, Young
Aurora, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with dogs, Good with cats,
Story
This is a very urgent situation. My landlord has given me just one month as of 01/03/26 to rehome my three dogs. They were born 03/29/26 and are mixed breed. I've had serious health issues for this past year which has prevented me from spending as much time with the dogs as I would've wished. Sadly, Lexi is not leash trained yet. But, she's a smart dog and I'm sure she'll pick that up very quickly. She's a tall lively dog who is full of energy. She would make an excellent dog walking companion.

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We'll also keep you updated on Grizz's adoption status with email updates.
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Grizz

Mutt

Male, Young
Aurora, CO
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with dogs, Good with cats, House-trained,
Story
This is a very urgent situation. My landlord has given me just one month as of 01/03/26 to rehome my three dogs. They were born 03/29/26 and are mixed breed. I've had serious health issues for this past year which has prevented me from spending as much time with the dogs as I would've wished. Sadly, Grizz is not leash trained yet. But, he's a smart dog and I'm sure he'd pick that up very quickly. He's a very lively friendly dog. He would be in his element going out for long walks. He would make a great addition to any home.

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Search for a Mutt puppy or dog

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

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Mutt puppies and dogs in nearby cities

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Looking for a specific shelter or rescue?

There are often many great Mutts for adoption at local animal shelters or rescues. Click below to find a shelter or rescue in your area!

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Want to learn more about adopting a Mutt puppy or dog?

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

Mutt basics

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

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