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Mastiff puppies and dogs in Acton, Ontario

Looking for a Mastiff puppy or dog in Acton, Ontario? Adopt a Pet can help you find an adorable Mastiff near you.

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Adopt a Mastiff near you in Acton, Ontario

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

Or, how about these Mastiffs in cities near Acton, Ontario

These Mastiffs are available for adoption close to Acton, Ontario.
We'll also keep you updated on London's adoption status with email updates.
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London

Mastiff Boxer

Female, 3 yrs
Guelph, ON
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
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Story
Hello! My name is London!I`m a fun and loving girl! I am snuggly and affectionate. I love treats and toys, which makes training a blast! I sometimes get excited and like to grab sleeves with my mouth. I thought that was fun but apparently humans don`t enjoy it as much as I do. No worries though, I`m super smart and doing well with training - I`m learning about other fun things to do instead. If you love cuddling, playing and snoring, I am definitely the girl for you!MY IDEAL HOME INVOLVES…CHILDREN: Teenagers should be fine. No young kids given I am still learning manners.OTHER DOGS: Potentially, it would have to be a very particular dog as I don`t like to roughhouse and I don`t like sharing my toys with dogs. If there is a dog in the home, he should be easy going, not exuberant, and not a resource guarder.CATS: Potentially, with cat experienced and confident around dogs.FIRST-TIME DOG OWNERS: I would do best with someone who has dog experience.FENCED-IN YARD: I do love to romp around outside while tossing toys in the air. A fence would be helpful to set me up for success.HOUSING ENVIRONMENT: Any, with yard preferred to help with exercise.SOMEONE HOME MOST OF THE DAY: Not necessarily.SOME OTHER THINGS TO KNOW ABOUT ME…ACTIVITY LEVEL: Medium.HOUSE-TRAINED: Yes.If you think I could be a good match for your home, click the “Adopt Me” button to apply!
We'll also keep you updated on Diesel's adoption status with email updates.
Photo of Diesel

Diesel

Mastiff

Male, 2 yrs
Hamilton, ON
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with dogs, House-trained, Shots are up-to-date,
Story
Built like a tank but powered by a very relaxed engine, Diesel is a 2-year-old Mastiff cross who is looking for a home where he can cruise comfortably through life. Diesel arrived as an unclaimed stray alongside another dog believed to be his littermate, and it’s clear he takes comfort in canine company. With a dog friend by his side, his confidence really shines. When he’s on his own, Diesel may take a moment to read the room and assess his surroundings but once he realizes everything is safe, he settles in nicely and continues on his way. Despite his size, Diesel is actually a lower-energy kind of guy. He’ll have a quick burst of goofy, puppy-like zoomies now and then, but they’re short-lived before he returns to his favorite activities: lounging, observing the world, and enjoying a peaceful nap. In his kennel he keeps things tidy and calm, and when passing by other dogs he’s friendly and polite. Diesel is also a smart cookie. He already knows “sit” and “paw,” and he’s very motivated when treats are involved. Because of this, he would really benefit from positive reinforcement obedience classes to help him learn more tricks and establish clear boundaries and routines in his new home. When meeting people, Diesel is polite and respectful - not the jumpy, over-the-top greeter type. He prefers a calm introduction and appreciates someone who can read his body language and give him a moment when he needs it. Because of this, we recommend a home with somewhat experienced handlers and no young children, where his cues will be understood and respected. In a perfect world, Diesel’s new home would include: possibly another friendly dog companion, daily walks and mental enrichment, a cozy sunny spot for naps and a yard where he can stretch out in the grass. During his medical exam Diesel allowed staff to check his ears but was a little tense during his dental check - understandable for a new environment. He'll need a more experienced home familiar with cues that he's uncomfortable. He has mild tartar on his molars, but no dental procedure is needed at this time. A dental-support diet is recommended to help keep that handsome smile healthy. Diesel is a gentle, thoughtful boy who just needs a patient home to help him continue building confidence and enjoying the good life he deserves. If you’re looking for a loyal companion with a calm nature, good manners, and the occasional burst of goofy energy, Diesel might be the perfect co-pilot for your next chapter. Please complete an adoption application: https://www.hamilton.ca/home-neighbourhood/animals-pets/adopt-or-foster-pet/adoptions Diesel has a future appointment to be neutered and will be ready to go to his forever home after his surgery. Animal adoptions and viewing are by appointment only. This allows our Adoption Staff to spend quality time with each potential home to ensure the most successful matches are made between the animals and their new families. *Please note: we only adopt within Ontario
We'll also keep you updated on Stella's adoption status with email updates.
Photo of Stella

Stella

Mastiff

Female, 2 yrs
Hamilton, ON
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
House-trained, Shots are up-to-date,
Story
At 2 years old, Stella is a beautiful Mastiff cross with a soft heart wrapped in a big, strong body. She arrived at the shelter as a stray alongside her presumed male littermate, and while the world can feel a little overwhelming at first, this sweet girl is showing us more of her gentle personality every day. Stella was understandably nervous during her medical intake, but she bravely allowed handling — and even showed off that she knows sit, down, and shake a paw! She takes treats ever so gently and is happily food-motivated, which makes her a wonderful candidate for continued training. With guidance and positive reinforcement, she’ll blossom into the very best version of herself. Though she can be timid when first meeting new people, Stella simply asks for a considerate, calm approach and a little patience. Once she feels safe, she absolutely melts — leaning her big frame into her person for cuddles, comfort, and reassurance. She bonds deeply and looks to her handler for guidance, making her a loyal and devoted companion. Stella appears to be housetrained and keeps her kennel tidy. She has been quiet during her stay and is described by staff as “shy but sweet” — a gentle giant finding her footing. While she can be selective with other dogs, she does warm up nicely and can enjoy playful interactions with well-matched canine friends. Because of her size and initial timidness — and her unknown history — a home without small children is recommended at this time. She will thrive with an experienced, patient handler who understands that trust is earned through kindness and consistency. As a large-breed girl, Stella will need daily exercise and plenty of mental stimulation to stay happy and healthy. Walks, enrichment toys, training sessions, and time spent bonding with her people will help her confidence grow beautifully. If you’re someone who appreciates the quiet, sensitive souls — the dogs who form deep, meaningful bonds — Stella may be your perfect match. Give her time, give her space, and she will give you her whole heart. Please complete an adoption application: https://www.hamilton.ca/home-neighbourhood/animals-pets/adopt-or-foster-pet/adoptions Stella has an appointment to be spayed on March 12th. She will be ready to go to her forever home after this surgery. Animal adoptions and viewing are by appointment only. This allows our Adoption Staff to spend quality time with each potential home to ensure the most successful matches are made between the animals and their new families. *Please note: we only adopt within Ontario
We'll also keep you updated on Kodiak's adoption status with email updates.
Photo of Kodiak

Kodiak

Mastiff

Male, 9 yrs 11 mos
King City, ON
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Not good with kids, Not good with dogs, Not good with cats, Needs experienced adopter, Spayed or Neutered, Shots are up-to-date,
Story
Kodiak is the true definition of an adventure buddy! Do you enjoy hiking, running, biking, swimming or exploring? Kodiak is the perfect dog for you! In fact he is already and waiting at the door for you! He is an intelligent dog who is capable of learning extremely quickly. He already knows the commands sit, down, stay, come, and speak! Kodiak’s greatest strength is his loyalty; Up or down, good or bad, happy or sad it will be Kodiak and you against the world. What makes Kodiak special is that he has so much love to give. The exact reasons you are looking for a dog are the same reason Kodiak desperately wants his forever human. He will need a very active adult-only family to drain his energy in order to keep him happy. Kodiak is looking for an experienced and confident owner to continue working on his reactivity to dogs and new people. He will need a strong leader to slowly introduce him to new people using the methods he has been taught while at Dog Tales. Kodiak is not friendly with strangers, children or other animals. Therefore he will need to live in a house with a fully fenced backyard. Once he is comfortable with a person he will become very attached and a great listener. Kodiak is looking for his chance with someone special. Upon adoption, Dog Tales can provide training for Kodiak and you in order to set you up for success.
We'll also keep you updated on Malik's adoption status with email updates.
Photo of Malik

Malik

Mastiff

Male, 1 yr 8 mos
King City, ON
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with dogs, Spayed or Neutered, Shots are up-to-date,
Story
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We'll also keep you updated on Honey's adoption status with email updates.
Photo of Honey

Honey

Mastiff Mixed Breed (Large)

Female, 9 yrs 7 mos
Toronto, ON
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Meet Honey. This gentle senior girl was found wandering the streets, alone and in pain. Her joints ached, her hips were stiff, and her body told the story of being left outside for far too long. But her story is changing — thanks to the love and expertise of her foster mom, a vet tech who’s made it her mission to help Honey heal. And she is healing. Honey is now on a regimen that helps her thrive: daily Metacam, Cartrophen injections, and joint supplements. Like many seniors, she’ll need to stay on this care plan — but it’s a small price to pay for the comfort and love she so deeply deserves. What’s sweeter than Honey? Absolutely nothing. We all hope to grow old with dignity and peace. But imagine finally reaching your golden years, only to be discarded like you no longer mattered. That’s what happened to Honey. Did she do anything wrong? Never. She was simply born kind, gentle, and full of love — and that’s still exactly who she is. She sleeps next to her foster sister’s crib at night, quietly keeping watch. She wears silly hats and dish towel “blankets” because it makes the baby laugh. She’s even stolen the heart of her foster brother, who now lays beside her in quiet companionship. She brings peace and warmth to every room she enters. She’s perfect. Now it’s time for her forever. Honey deserves a family who will cherish her through her senior years. Someone who sees the beauty in her graying muzzle, who understands her past, and who is ready to give her the soft landing she never had. If your home — and your heart — has room for a little sweetness, Honey is ready. Apply today and let her golden years shine.

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Mastiff shelters & rescues in Acton, Ontario

There are animal shelters and rescues that focus specifically on finding great homes for Mastiff puppies in Acton, Ontario. Browse these Mastiff rescues and shelters below.

Here are a few organizations closest to you:

Shelter

13.6 miles

Guelph Humane Society

190 Hanlon Creek Blvd, Guelph, ON N1C 0A1

Pet Types: cats, birds, dogs, farm animals, rabbits, reptiles, small animals

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Shelter

31.4 miles

City of Hamilton Animal Services

247 Dartnall Road, Hamilton, ON L8W 3V9

Pet Types: cats, birds, dogs, rabbits, reptiles, small animals

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Rescue

32.5 miles

Team Dog Rescue

200 Bay St., Royal Bank Plaza, PO Box 64043, Toronto, ON M5J 2T6

Pet Types: dogs

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Rescue

32.7 miles

Dog Tales Rescue and Sanctuary

1405 19th Sideroad, King City, ON L7B 1K5

Pet Types: cats, dogs

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Shelter

33.5 miles

Toronto Humane Society

11 River Street, Toronto, ON M5A 4C2

Pet Types: cats, birds, dogs, rabbits, reptiles, small animals

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Rescue

39.5 miles

Alliston & District Humane Society

5545 Tosorontio Concession 4, Everett, ON L0M 1J0

Pet Types: cats, birds, dogs, rabbits, small animals

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Shelter

45.9 miles

Ontario SPCA and Humane Society York Region Animal Centre

16586 Woodbine Ave, Stouffville, ON L4A 2W3

Pet Types: cats, birds, dogs, rabbits, small animals

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Rescue

49.7 miles

Oxford County Animal Rescue

789 Dundas Street, Woodstock, ON N4S 1E1

Pet Types: cats, dogs, rabbits

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

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

Mastiff basics

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

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