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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.
Photo of Oreo

Oreo

Border Collie

Male, Adult
Portland, ME
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, Good with cats,
Story
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Photo of ARTSY MARCY

ARTSY MARCY

Border Collie

Female, Adult
Portland, 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 Artsy Marcy – A Survivor with a Brilliant Mind and an Even Bigger Heart     Artsy Marcy is a beautiful Border Collie mix, around 2 years old and weighing 55–60 pounds. Her life began with unimaginable hardship, yet she has never let her past define her. It is believed that Marcy and her siblings were abandoned in a remote rural area of Tennessee. While trying to survive on their own, tragedy struck when they were hit by a train. Her sister did not survive, and Marcy was left with a severely dislocated hip. Thanks to a compassionate foster who refused to give up on her, Marcy received the surgery and care she desperately needed. Today she has only a slight limp—a small reminder of just how far she has come.     Marcy is everything you would expect from a Border Collie mix: incredibly intelligent, observant, athletic, and eager to be part of whatever her people are doing. She loves hiking, exploring, and would thrive in an active home where she can exercise both her body and her mind. She has a natural herding instinct and enjoys having a job or purpose.   She is wonderful with people and genuinely enjoys human companionship. While she may be a little shy during first introductions, she warms up quickly and forms strong, loyal bonds. Once she trusts you, she is affectionate, devoted, and eager to please.     Marcy has lived around cats, but she does have a prey drive, so any home with cats should be experienced and committed to proper introductions and management. She also does well with some dogs but can be selective about her canine companions. Like many intelligent, confident working breeds, she appreciates respectful introductions and clear leadership. She would do best with an adopter who understands Border Collie personalities and will provide consistent structure, training, and outlets for her energy.     Marcy isn't looking to be just another dog lying quietly in the corner. She is looking for someone who will appreciate her intelligence, celebrate her spirit, and give her the freedom to be the amazing Border Collie mix she was born to be.   Against all odds, this remarkable girl survived when she easily could have been another forgotten statistic. Now she deserves the happy ending she has fought so hard for.   If you'd like to learn more about Artsy Marcy or speak with the foster mom who saved her life, please contact Critter Cavalry Rescue at ccrtennessee@gmail.com.     Could you be the person who gives this extraordinary survivor the forever home she's been waiting for?       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.comSeptember 2, 2026, 6:14 pm
Photo of PUPPY RICHIE

PUPPY RICHIE

Border Collie

Male, Young
Portland, 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
  Richie ' Sambora ' is what this Border Collie mix puppy should be called because he is so handsome and extra charming.  Born around April 1st, 5 months ago from 9/1, his mom was a 40 pound girl with 4 puppies who were all left outside in the harsh heat while their owner went on vacation.  No food, no water was left behind.  Soon Animal Control was there to take the sweet dogs in to the shelter for relief and care. Richie is 25 pounds and a very special boy.  He has very special eye coloring that gives him two different colored eyes that make him absolutely unforgettable.  This boy Richie has already figured out that those beautiful eyes have a way of melting hearts.  Look out ladies, this handsome boy knows exactly how to turn on the charm and if he played guitar like Sambora does with Bon Jovi, he would be dangerous. But underneath those gorgeous eyes is a sweet puppy who is learning that humans can be trusted and that life can be pretty wonderful.   He is almost housebroken, crate training is successful and he is good with all other dogs and cats as well.   We expect him to the same weight range as his momma, 40 pounds.  He is happy and curious and playful.  Working on his leash skills and he has had a great deal of guidance from his foster persons that have helped him the past few weeks.  If you would like to adopt this happy young pup please write to Critter Cavalry Rescue at ccrtennessee@gmail.com  Mention where you live.  A fence would be an ideal situation for this boy to run free and with total safety to hang outside for hours.     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.comSeptember 2, 2026, 6:14 pm
Photo of FERN

FERN

Border Collie

Female, Young
Portland, ME
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Spayed or Neutered, Shots are up-to-date,
Story
Meet Fern! Some dogs are simply waiting for a family. Fern is waiting for her people—the ones she'll happily follow through every adventure life has to offer.Fern is an 8-month-old Border Collie mix, born around the middle of November 2025, and currently weighs 29 pounds. She'll likely mature to around 40 pounds—the perfect size for hiking trails, road trips, neighborhood walks, and curling up at your feet after a day well spent.Fern and her identical sister were adopted together as tiny 6-week-old puppies. Unfortunately, their family realized they couldn't give the girls the time, attention, and exercise they deserve. Now Fern is searching for the forever home she's always deserved.This beautiful black-and-white girl has a sweet, easygoing personality and is happiest when she's included in whatever her people are doing. She loves children, enjoys the company of other dogs, and is always ready for a new adventure. She hasn't met cats yet, though she and her sister have been known to chase chickens—something that may disappear once she's no longer teaming up with her mischievous sibling!Like many Border Collie mixes, Fern is happiest when both her body and her mind are engaged. She'll thrive with daily walks, backyard games, hiking adventures, or even dog sports like agility, flyball, or dock diving. She doesn't need a perfect life—just one where she's loved, included, and given opportunities to learn and explore.Imagine having a loyal companion who's waiting by the door when it's time for a walk, riding shotgun on weekend adventures, making your kids laugh in the backyard, and greeting you with a wagging tail after every workday. That's the life Fern is hoping for—and the life she's ready to give back with endless love and devotion.If you're looking for a best friend to share life's adventures, Fern may be the missing piece you've been searching for.To learn more or request an adoption application, email ccrtennessee@gmail.com and be sure to include your city and state. Critter Cavalry Rescue transports to many states throughout the Northeast for approved adopters. 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.comSeptember 2, 2026, 6:15 pm
Photo of LOVELY LOLA

LOVELY LOLA

Border Collie Labrador Retriever

Female, Adult
Portland, ME
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, Not good with cats, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Lola is an affectionate lab mix who loves being by your side 24/7. She is both crate trained and house trained. Her silly antics will keep you laughing every day. Full of energy, Lola enjoys going on walks and will happily sleep next to you all night. She gets along well with other dogs. While she may be a bit shy at first, it doesn’t take long for her to warm up. Lola adores being petted, especially belly rubs and ear scratches.     Lola is totally vetted and ready to find her forever home.  To learn more about her please email Vivienne at vivienneajames@gmail.com or text 615-943-7311.  APPROVED APPLICATION AND ADOPTION FEE REQUIRED.September 2, 2026, 6:15 pm

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

These Border Collies are available for adoption close to Portland, Maine.
Photo of Oreo

Oreo

Border Collie

Male, Adult
Portland, ME
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, Good with cats,
Story
-
Photo of ARTSY MARCY

ARTSY MARCY

Border Collie

Female, Adult
Portland, 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 Artsy Marcy – A Survivor with a Brilliant Mind and an Even Bigger Heart     Artsy Marcy is a beautiful Border Collie mix, around 2 years old and weighing 55–60 pounds. Her life began with unimaginable hardship, yet she has never let her past define her. It is believed that Marcy and her siblings were abandoned in a remote rural area of Tennessee. While trying to survive on their own, tragedy struck when they were hit by a train. Her sister did not survive, and Marcy was left with a severely dislocated hip. Thanks to a compassionate foster who refused to give up on her, Marcy received the surgery and care she desperately needed. Today she has only a slight limp—a small reminder of just how far she has come.     Marcy is everything you would expect from a Border Collie mix: incredibly intelligent, observant, athletic, and eager to be part of whatever her people are doing. She loves hiking, exploring, and would thrive in an active home where she can exercise both her body and her mind. She has a natural herding instinct and enjoys having a job or purpose.   She is wonderful with people and genuinely enjoys human companionship. While she may be a little shy during first introductions, she warms up quickly and forms strong, loyal bonds. Once she trusts you, she is affectionate, devoted, and eager to please.     Marcy has lived around cats, but she does have a prey drive, so any home with cats should be experienced and committed to proper introductions and management. She also does well with some dogs but can be selective about her canine companions. Like many intelligent, confident working breeds, she appreciates respectful introductions and clear leadership. She would do best with an adopter who understands Border Collie personalities and will provide consistent structure, training, and outlets for her energy.     Marcy isn't looking to be just another dog lying quietly in the corner. She is looking for someone who will appreciate her intelligence, celebrate her spirit, and give her the freedom to be the amazing Border Collie mix she was born to be.   Against all odds, this remarkable girl survived when she easily could have been another forgotten statistic. Now she deserves the happy ending she has fought so hard for.   If you'd like to learn more about Artsy Marcy or speak with the foster mom who saved her life, please contact Critter Cavalry Rescue at ccrtennessee@gmail.com.     Could you be the person who gives this extraordinary survivor the forever home she's been waiting for?       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.comSeptember 2, 2026, 6:14 pm
Photo of PUPPY RICHIE

PUPPY RICHIE

Border Collie

Male, Young
Portland, 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
  Richie ' Sambora ' is what this Border Collie mix puppy should be called because he is so handsome and extra charming.  Born around April 1st, 5 months ago from 9/1, his mom was a 40 pound girl with 4 puppies who were all left outside in the harsh heat while their owner went on vacation.  No food, no water was left behind.  Soon Animal Control was there to take the sweet dogs in to the shelter for relief and care. Richie is 25 pounds and a very special boy.  He has very special eye coloring that gives him two different colored eyes that make him absolutely unforgettable.  This boy Richie has already figured out that those beautiful eyes have a way of melting hearts.  Look out ladies, this handsome boy knows exactly how to turn on the charm and if he played guitar like Sambora does with Bon Jovi, he would be dangerous. But underneath those gorgeous eyes is a sweet puppy who is learning that humans can be trusted and that life can be pretty wonderful.   He is almost housebroken, crate training is successful and he is good with all other dogs and cats as well.   We expect him to the same weight range as his momma, 40 pounds.  He is happy and curious and playful.  Working on his leash skills and he has had a great deal of guidance from his foster persons that have helped him the past few weeks.  If you would like to adopt this happy young pup please write to Critter Cavalry Rescue at ccrtennessee@gmail.com  Mention where you live.  A fence would be an ideal situation for this boy to run free and with total safety to hang outside for hours.     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.comSeptember 2, 2026, 6:14 pm
Photo of FERN

FERN

Border Collie

Female, Young
Portland, ME
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Spayed or Neutered, Shots are up-to-date,
Story
Meet Fern! Some dogs are simply waiting for a family. Fern is waiting for her people—the ones she'll happily follow through every adventure life has to offer.Fern is an 8-month-old Border Collie mix, born around the middle of November 2025, and currently weighs 29 pounds. She'll likely mature to around 40 pounds—the perfect size for hiking trails, road trips, neighborhood walks, and curling up at your feet after a day well spent.Fern and her identical sister were adopted together as tiny 6-week-old puppies. Unfortunately, their family realized they couldn't give the girls the time, attention, and exercise they deserve. Now Fern is searching for the forever home she's always deserved.This beautiful black-and-white girl has a sweet, easygoing personality and is happiest when she's included in whatever her people are doing. She loves children, enjoys the company of other dogs, and is always ready for a new adventure. She hasn't met cats yet, though she and her sister have been known to chase chickens—something that may disappear once she's no longer teaming up with her mischievous sibling!Like many Border Collie mixes, Fern is happiest when both her body and her mind are engaged. She'll thrive with daily walks, backyard games, hiking adventures, or even dog sports like agility, flyball, or dock diving. She doesn't need a perfect life—just one where she's loved, included, and given opportunities to learn and explore.Imagine having a loyal companion who's waiting by the door when it's time for a walk, riding shotgun on weekend adventures, making your kids laugh in the backyard, and greeting you with a wagging tail after every workday. That's the life Fern is hoping for—and the life she's ready to give back with endless love and devotion.If you're looking for a best friend to share life's adventures, Fern may be the missing piece you've been searching for.To learn more or request an adoption application, email ccrtennessee@gmail.com and be sure to include your city and state. Critter Cavalry Rescue transports to many states throughout the Northeast for approved adopters. 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.comSeptember 2, 2026, 6:15 pm
Photo of LOVELY LOLA

LOVELY LOLA

Border Collie Labrador Retriever

Female, Adult
Portland, ME
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, Not good with cats, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Lola is an affectionate lab mix who loves being by your side 24/7. She is both crate trained and house trained. Her silly antics will keep you laughing every day. Full of energy, Lola enjoys going on walks and will happily sleep next to you all night. She gets along well with other dogs. While she may be a bit shy at first, it doesn’t take long for her to warm up. Lola adores being petted, especially belly rubs and ear scratches.     Lola is totally vetted and ready to find her forever home.  To learn more about her please email Vivienne at vivienneajames@gmail.com or text 615-943-7311.  APPROVED APPLICATION AND ADOPTION FEE REQUIRED.September 2, 2026, 6:15 pm
Photo of Johnny

Johnny

Border Collie

Male, Young
Brunswick, ME
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, Good with cats, Shots are up-to-date,
Story
Johnny is a sweet high energy extremely smart quick learner Border Collie mix. Johnny had a hard start in life and is now looking for a soft place to land. Johnny is great with dogs and does well with cats. He can be a little jumpy so older kids might be best. If you are looking for a smart dog who wants to learn and be your best friend Johnny is the guy. Adoption fee is $475 If you do not hear from us within 7 days please email passion4petsrescue@gmail.com

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!
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Photo of Bailey Girl

Bailey Girl

Australian Shepherd

Female, Young
Portland, ME
Size
(when grown) Small 25 lbs (11 kg) or less
Details
Not good with kids, Good with dogs, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Meet Bailey Girl, a sweet Aussie looking for her chance Bailey Girl is a beautiful 20-pound female 8 month old Mini Aussie mix with a story that will break your heart—but the little dog she is becoming will put it right back together. Bailey Girl was abandoned during extremely hot weather when someone placed her inside a school playground with no way to get out. Tragically, she wasn’t discovered until the following Monday when the school reopened. Someone had reportedly witnessed her being left there but did not notify anyone. We may never understand why she was abandoned that way, but we do know one thing: her story does not have to end where it began. Today, Bailey Girl is safe in a loving foster home, and she is doing beautifully.  It took her only a couple of days to begin trusting her foster, and now she has become her little shadow. She does well with other dogs and cats, walks on a leash, and can even be left loose in the home with the other dogs while her foster is at work. Bailey Girl is still working on becoming completely house trained, but she is extremely intelligent and continues to learn. She enjoys having a yard where she can run and as her confidence and trust have grown, she happily comes back to her foster when called. Because Bailey Girl can be somewhat fearful of children, we believe she would be happiest in a home without children, where she can feel secure and develop a strong bond with her person or family. Bailey may need a little more patience in the beginning than some dogs. You have to earn her trust—but once you do, something very special happens. She begins to understand that she is safe. She follows you. She looks to you for reassurance. And before long, you realize you haven’t just gained a dog—you’ve gained a devoted little sidekick. A word of advice please.  Bailey Girl needs someone who won’t expect everything from her on the first day. She needs love, patience, kindness, and time. Give her the opportunity to understand that you aren’t going anywhere, and she will give that love and devotion right back to you.  Bailey may very well become the dog you talk about for the rest of your life. Please contact Critter Cavalry Rescue at ccrtennessee@gmail.com if you would like to make her a part of your world and life.  She has already experienced what it feels like to be left behind. Now it’s time for this beauty to discover what it feels like to be chosen—and never abandoned again. September 2, 2026, 6:14 pm
Photo of BEAUTIFUL BECKETT

BEAUTIFUL BECKETT

Australian Shepherd

Female Adult
Portland, ME
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with dogs, Good with cats, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Beckett is a very handsome mini Australian Shepherd mix. He weighs about 35 lbs. This distinguished boy is a young 10-year-old. Beckett was saved from the streets of Nashville. He was abandoned and alone. Thanks to a caring lady who could not bear the thought of him spending any more time outside, Beckett is now in a loving foster home. He is under the care of Critter Cavalry.   It did not take long for this awesome gentleman to make himself at home. After meeting the resident dogs, he explored outside. He came in and found a spot to relax. He is getting along great with his new foster sisters. He is also good with cats. This super smart boy quickly learned to use the doggie door. He can now come and go as he pleases. He does prefer to be inside and likes to know where his foster mom is. Beckett is enjoying all the love and attention he is getting.   It takes him a few minutes, but he quickly warms up to new people. He just has to make sure that you are nice. Beckett is housebroken. He walks well on a leash. He also does not mind the crate and will go right in for a treat. He currently sleeps in his crate, but we think he would love to cuddle up right next to you.   If you are interested in adopting Beckett, please email Vivienne at vivienneajames@gmail.com or text 615-943-7311 to request an application. The adoption process requires submitting an application, having it approved, and paying an adoption fee. Beckett is neutered, up to date on all shots, microchipped, and currently in Tennessee. He can be transported north upon adoption.September 2, 2026, 6:14 pm
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Photo of DASHING DOMINO

DASHING DOMINO

Australian Cattle Dog

Male, Adult
Portland, ME
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 Domino  1 Year Old – Blue Heeler Cattle Dog Mix Domino is full of energy and full of love!  This handsome 1-year-old is a very loving boy who needs a place to run around and burn off that Heeler energy. Domino enjoys playing with the neighborhood kids and would be an amazing family dog.  Good with: Other dogs and tolerates cats Great with: Kids – loves playing with neighborhood children Personality: High energy, playful, loving, loyal Needs: Yard / space to run and daily play + walks Favorites: Running, playing, being with his people If you have room to run and lots of love to give, Domino will be your most loyal adventure buddy.  Only 25 pounds.  To learn more about adding Domino to your family please email Vivienne at vivienneajames@gmail.com or text 615-943-7311.  Approved application and adoption fee required.  Domino is in Tennessee and can be transported north upon adopion.September 2, 2026, 6:14 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

0.3 miles

Big Family Rescue - Portlant, ME Transport Stop

Portland, ME 04101

Pet Types: cats, dogs

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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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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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