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Border Collie puppies and dogs in Portland, Maine

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

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Adopt a Border Collie near you in Portland, Maine

These Border Collies are available in Portland, Maine.
We'll also keep you updated on REX's adoption status with email updates.
Photo of REX

REX

Border Collie Corgi

Male, Young
Portland, ME
Size
(when grown) Small 25 lbs (11 kg) or less
Details
Spayed or Neutered, Shots are up-to-date,
Story
  Rex is a young dog who has already lived a lifetime’s worth of hardship—and somehow came out the other side with a gentle soul and an open heart. For much of his first year, Rex lived tied out in the woods with a homeless couple, missing out on everything a puppy should know: safety, structure, and the comfort of belonging. Now, at just barely one year old, he’s finally getting his chance at having a good life that does not include a tieout and living in the woods homeless.    This handsome Corgi mix weighs 25 pounds, with a compact, active build and a few healthy pounds still to gain. He sports the most expressive upright ears, short Corgi legs, a long body, and a gorgeous, fluffy tail reminiscent of a Border Collie. His coat is soft and flowing, and his energy is joyful and contagious once he feels safe. Rex is friendly with other dogs and naturally polite in his interactions. When meeting new people, he approaches gently with a submissive posture, ears back at first—then slowly lifting as his confidence grows. He’s still learning how to walk on a leash and is being introduced to basic commands and manners for the very first time and he’s proving to be a quick learner who genuinely wants to please. Because Rex missed out on early training, he will need an adopter who understands young dogs and enjoys helping one grow into his potential. With consistency and positive guidance, Rex could shine in agility, flyball, or other interactive dog sports. More than anything, he’s a dog who wants to work with his person and be part of a family.  Rex is ready to leave survival behind and step into a life filled with love, guidance, and belonging. If you’re looking for a loyal, family-oriented dog and are willing to help shape his future, Rex may be the one you’ve been waiting for.   To learn more about adopting Rex, please contact Critter Cavalry Rescue at ccrtennessee@gmail.com PLEASE NOTE:  Our dogs are transported from Tennessee to meeting places in the states where we have posted.  Further information about us is given on our Adopt-A-Pet site.  The adoption fees vary and will be provided as well as noted on the application you receive.  Contact us at 615-661-5333 or ccrnewengland@gmail.comFebruary 13, 2026, 2:12 pm
We'll also keep you updated on ROCK STAR - MRS RILEY RAY's adoption status with email updates.
Photo of ROCK STAR - MRS RILEY RAY

ROCK STAR - MRS RILEY RAY

Border Collie

Female, Adult
Portland, ME
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Spayed or Neutered, Shots are up-to-date,
Story
Rockstar Ms. Riley Ray didn’t get her name by accident — she earned it with heart, resilience, and a spirit that refuses to fade. This stunning 8-year-old purebred Border Collie has lived a life that didn’t quite match the energy she was born with. Adopted as a puppy by a loving older couple, Riley grew up surrounded by affection but very little structure. Long days indoors, extra bites of fast food and table scraps, and almost no exercise slowly took a toll.  Now this girl after just 3 weeks with us she is down 12 pounds and a nice 69 pounds and still on the way down.  All she needs is to walk daily for a few miles and then play fetch the ball and stay on a strict diet with no caloric treats.  Riley lives for fetch. The moment a ball appears, her eyes light up and her whole body comes alive. It’s as if she’s saying, “This is who I really am.” She is affectionate, loyal, incredibly smart, and still has so much joy and drive left to give. Riley is searching for an active home that understands Border Collies and will help her continue her health journey. She doesn’t want to sit on the sidelines anymore — she wants to run, chase, play, and finally live the life her breed was built for. Her past may have slowed her down, but it never dimmed her spark. Now she’s ready for the next chapter, one filled with movement, purpose, and a human who will see the Rock star she truly is.  Contact Critter Cavalry Rescue at ccrnewengland@gmail.com if you are interested PLEASE NOTE:  Our dogs are transported from Tennessee to meeting places in the states where we have posted.  Further information about us is given on our Adopt-A-Pet site.  The adoption fees vary and will be provided as well as noted on the application you receive.  Contact us at 615-661-5333 or ccrnewengland@gmail.comFebruary 1, 2026, 12:09 pm

Or, how about these Border Collies in cities near Portland, Maine

These Border Collies are available for adoption close to Portland, Maine.
We'll also keep you updated on REX's adoption status with email updates.
Photo of REX

REX

Border Collie Corgi

Male, Young
Portland, ME
Size
(when grown) Small 25 lbs (11 kg) or less
Details
Spayed or Neutered, Shots are up-to-date,
Story
  Rex is a young dog who has already lived a lifetime’s worth of hardship—and somehow came out the other side with a gentle soul and an open heart. For much of his first year, Rex lived tied out in the woods with a homeless couple, missing out on everything a puppy should know: safety, structure, and the comfort of belonging. Now, at just barely one year old, he’s finally getting his chance at having a good life that does not include a tieout and living in the woods homeless.    This handsome Corgi mix weighs 25 pounds, with a compact, active build and a few healthy pounds still to gain. He sports the most expressive upright ears, short Corgi legs, a long body, and a gorgeous, fluffy tail reminiscent of a Border Collie. His coat is soft and flowing, and his energy is joyful and contagious once he feels safe. Rex is friendly with other dogs and naturally polite in his interactions. When meeting new people, he approaches gently with a submissive posture, ears back at first—then slowly lifting as his confidence grows. He’s still learning how to walk on a leash and is being introduced to basic commands and manners for the very first time and he’s proving to be a quick learner who genuinely wants to please. Because Rex missed out on early training, he will need an adopter who understands young dogs and enjoys helping one grow into his potential. With consistency and positive guidance, Rex could shine in agility, flyball, or other interactive dog sports. More than anything, he’s a dog who wants to work with his person and be part of a family.  Rex is ready to leave survival behind and step into a life filled with love, guidance, and belonging. If you’re looking for a loyal, family-oriented dog and are willing to help shape his future, Rex may be the one you’ve been waiting for.   To learn more about adopting Rex, please contact Critter Cavalry Rescue at ccrtennessee@gmail.com PLEASE NOTE:  Our dogs are transported from Tennessee to meeting places in the states where we have posted.  Further information about us is given on our Adopt-A-Pet site.  The adoption fees vary and will be provided as well as noted on the application you receive.  Contact us at 615-661-5333 or ccrnewengland@gmail.comFebruary 13, 2026, 2:12 pm
We'll also keep you updated on ROCK STAR - MRS RILEY RAY's adoption status with email updates.
Photo of ROCK STAR - MRS RILEY RAY

ROCK STAR - MRS RILEY RAY

Border Collie

Female, Adult
Portland, ME
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Spayed or Neutered, Shots are up-to-date,
Story
Rockstar Ms. Riley Ray didn’t get her name by accident — she earned it with heart, resilience, and a spirit that refuses to fade. This stunning 8-year-old purebred Border Collie has lived a life that didn’t quite match the energy she was born with. Adopted as a puppy by a loving older couple, Riley grew up surrounded by affection but very little structure. Long days indoors, extra bites of fast food and table scraps, and almost no exercise slowly took a toll.  Now this girl after just 3 weeks with us she is down 12 pounds and a nice 69 pounds and still on the way down.  All she needs is to walk daily for a few miles and then play fetch the ball and stay on a strict diet with no caloric treats.  Riley lives for fetch. The moment a ball appears, her eyes light up and her whole body comes alive. It’s as if she’s saying, “This is who I really am.” She is affectionate, loyal, incredibly smart, and still has so much joy and drive left to give. Riley is searching for an active home that understands Border Collies and will help her continue her health journey. She doesn’t want to sit on the sidelines anymore — she wants to run, chase, play, and finally live the life her breed was built for. Her past may have slowed her down, but it never dimmed her spark. Now she’s ready for the next chapter, one filled with movement, purpose, and a human who will see the Rock star she truly is.  Contact Critter Cavalry Rescue at ccrnewengland@gmail.com if you are interested PLEASE NOTE:  Our dogs are transported from Tennessee to meeting places in the states where we have posted.  Further information about us is given on our Adopt-A-Pet site.  The adoption fees vary and will be provided as well as noted on the application you receive.  Contact us at 615-661-5333 or ccrnewengland@gmail.comFebruary 1, 2026, 12:09 pm
We'll also keep you updated on Astra's adoption status with email updates.
Photo of Astra

Astra

Border Collie Labrador Retriever

Female, Puppy
Brunswick, ME
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 This Little Firecracker Astra✨ 🧨 Bouncy. Playful. Learning the ropes — and stealing hearts along the way. Astra is a joyful, typical puppy full of bounce, curiosity, and happy energy. She loves to play with the other dogs and is learning how to read their cues (enthusiastically — puppy life! 😄). She’s doing wonderfully with crate and potty training and will even wait by the back door when she needs to go out. Accidents are minimal! At night, Astra sleeps in her crate and only lets out a little whine when she truly needs a potty break. Once Astra’s puppy zoomies finally settle she turns into a total snuggle bug — especially if she has a chew toy nearby and a lap to lay on! Astra is not just cute — she’s growing, learning, and becoming a wonderful companion right before our eyes. She’ll thrive in a home ready for puppy energy, consistency, and lots of love. If you’re looking for a playful pup with a cuddly heart, Astra is the perfect match 💖 Don’t wait apply to adopt Astra today! https://pprorg.com/adopt Adoption fee is $475 If you do not hear from us within 7 days please email passion4petsrescue@gmail.com
We'll also keep you updated on Yoshi's adoption status with email updates.
Photo of Yoshi

Yoshi

Border Collie Terrier (Unknown Type, Medium)

Male, Puppy
Bowdoin, ME
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
Yoshi is lively little guy! He loves going on walks and playing with his dog friends. He is extremely food motivated and is eager to please! What he loves most is spending time with people. He loves everyone he meets! Yoshi would do great in just about any home willing to give him the time a normal pup needs to be trained and raised!
We'll also keep you updated on Feila's adoption status with email updates.
Photo of Feila

Feila

Border Collie Terrier (Unknown Type, Medium)

Female, Puppy
Bowdoin, ME
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, Good with cats, Spayed or Neutered, Shots are up-to-date,
Story
Feila is an active, clever girl ready for a home! She loves toys and playtime, and she learns quickly when food or toys are involved! She’s great with new people and dogs, and is good with cats so far. She will be a great dog to train— she loves it and it keeps her busy! Feila loves to be outside. She is leash trained and would be an amazing adventure buddy! She would fit into any family willing to give her time to play! If you are interested in adopting or fostering Feila, email wynnefoa@gmail.co

These pups are in Portland, Maine too!

Below are our newest added Border Collies available for adoption in Portland, Maine. To see more adoptable Border Collies in Portland, Maine, use the search tool below to enter specific criteria!
We'll also keep you updated on Bodhi's adoption status with email updates.
Photo of Bodhi

Bodhi

Australian Shepherd

Male, Young
Portland, ME
Size
(when grown) Small 25 lbs (11 kg) or less
Details
Not good with dogs, Not good with cats, Needs experienced adopter, House-trained,
Story
Bodhi is a deeply loyal, intelligent, and affectionate dog who forms a strong bond with his person. In calm, predictable environments, he is attentive, loving, and happiest simply being near those he trusts. He thrives on routine, structure, and clear communication, and when those needs are met, his devoted nature truly shines. One of his favorite things is playing ball outdoors, where he can run, focus, and just be a dog. Bodhi has worked extensively with professional trainers and has received consistent structure and medical support to help manage anxiety. While he has made progress, he does best in a quieter, low-stimulus home with clear expectations and steady daily life. This decision was made with great care, love, and responsibility. Bodhi is not a “project” dog—he is a good dog who needs the right environment to feel safe and succeed. In the right home, with an experienced and patient owner who values calm leadership, he has the potential to be an incredibly loyal companion.
We'll also keep you updated on STUNNING STELLA's adoption status with email updates.
Photo of STUNNING STELLA

STUNNING STELLA

Australian Shepherd

Female, Adult
Portland, ME
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Not good with dogs, Not good with cats, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Stella is a friendly and intelligent dog with plenty of energy. We want her to be happy and have a space where she can run around and play with other dogs. Previously, Stella lived in the mountains of Colorado, where she enjoyed a large fenced yard and had lots of friends to play with. Now, she is living in a townhouse without a yard, which has been challenging for her. As a very active young lady, she is currently feeling unhappy. Stella is a mix of Australian Cattle Dog, Husky, German Shepherd, and Golden Retriever, and she is expected to weigh around 30 pounds. She is a loving and eager-to-learn dog who picks up new skills quickly. Stella would be an amazing agility dog, as this would engage both her mind and her need for physical activity. If agility training isn't your interest, she would also thrive in an active lifestyle with an avid walker, hiker, or runner.  Stella is a very quick learner and was immediately fully potty trained.     To ensure the best for Stella, her new owners should have a yard or live on a farm, and it would be great if they have another dog and children.  Stella has plenty of energy to add playing at home to her list of activities.    Stella has been spayed and is current on all her shots until May 2026.  To be considered for her forever family and to request an application please contact Vivienne at vivienneajames@gmail.com.  APPROVED APPLICATION AND ADOPTION FEE REQUIRED.  (Stella is currently in Tennessee and can be transported north upon adoption.)  July 30, 2025, 9:47 pm
We'll also keep you updated on PUPPY ROCKY's adoption status with email updates.
Photo of PUPPY ROCKY

PUPPY ROCKY

Australian Cattle Dog

Male, Puppy
Portland, ME
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with dogs, Spayed or Neutered, Shots are up-to-date,
Story
Rocky’s story began when he was found in a very rural front yard—hungry, alone, but unbelievably sweet from the very first moment. He was taken to the local small town shelter for safety, but an experienced foster took one look at his sweet face and knew this boy needed more than a shekter kennel. She saw something special in him… and she was right. Rocky is a smart and striking 5-month-old Red Heeler mix, about 24 pounds, with the most adorable freckles and an expression that melts hearts instantly. He is affectionate and loves to snuggle just as much as he loves to run and play outside. Rocky enjoys his chew toys and, like most puppies, may occasionally snag a sock or blanket—but he’s doing wonderfully learning what’s his and what’s not. He does great in his crate, is progressing nicely with house training, and is eager to please. He plays well with other dogs and has been around cats in his foster home—curious but respectful, never aggressive. Rocky responds well to gentle verbal correction and truly wants to do the right thing. And when he wakes up? He has the sweetest little yawn that will make you smile every single time. This loving, highly intelligent puppy is ready to grow into a loyal, lifelong companion. If you’re looking for a best friend who will stick by your side for years to come, Rocky may be your perfect match. Please contact Critter Cavalry Rescue at ccrnewengland@gmail.com to learn more about adopting Rocky. PLEASE NOTE:   Our dogs and cats are fostered in Tennessee and can transport weekly up to the Northeast region.  Request an application and learn more about Critter Cavalry at https://www.crittercavalry.com/adoption.February 1, 2026, 12:09 pm

Search for a Border Collie puppy or dog

Use the search tool below to browse adoptable Border Collie puppies and adults Border Collie in Portland, Maine.

Border Collie puppies and dogs in nearby cities

Related breeds in Portland, Maine

Border Collie shelters & rescues in Portland, Maine

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

Here are a few organizations closest to you:

Rescue

2.2 miles

Critter Cavalry Rescue New England - ME

Portland, ME 04103

Pet Types: dogs

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Rescue

22.9 miles

Passion for Pets Rescue

PO Box 581, Brunswick, ME 04011

Pet Types: dogs

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Rescue

24.5 miles

Wynne Friends of Animals - Maine transport

ALL DOGS ARE LOCATED IN ARKANSAS, Bowdoin, ME 04287

Pet Types: cats, dogs

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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 Border Collie puppy or dog?

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

Border Collie basics

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Where do Border Collies come from? How many types of Border 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 Border Collie.

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