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Mastiff puppies and dogs in Toronto, Ontario

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

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Adopt a Mastiff near you Mastiff in cities near Toronto, Ontario Other pups in Toronto, Ontario Search for a Mastiff puppy or dog near you Browse Mastiff puppies and dogs in nearby cities Browse related breeds in Toronto, Ontario Mastiff shelters and rescues in Toronto, Ontario Learn more about adopting a Mastiff puppy or dog

Adopt a Mastiff near you in Toronto, Ontario

These Mastiffs are available in Toronto, Ontario.
Photo of Priscilla

Priscilla

Mastiff

Female, 6 yrs 5 mos
Toronto, ON
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Meet Priscilla, queen of the dog park! Priscilla is such a cutie and just the sweetest girl. She has a curious spirit, a love for treats and has already shown herself to be an affectionate and eager-to-please dog! She always gets excited to see our volunteers and will greet them with her whole body wagging, eager for some attention and maybe a tasty snack or two. On walks, Priscilla is excited to explore and does well when walked at her pace. While she’s confident enough to explore quieter areas, she can get a little spooked by busy or high-traffic zones, but she settles down quickly once she’s in a calmer environment. She’s a quick learner, and she comes right to you when called, especially if there’s a treat involved. Priscilla really enjoys spending time outside, whether walking, playing or simply people-watching. She just enjoys being in the moment! When it’s time to head back, she’s easy to return back home and will happily go back inside for a good petting session. Priscilla is a friendly and sweet-natured dog who thrives on companionship. She will need a patient family that can continue to build her confidence and help her adjust to her new routine at her own pace. She will soon blossom into the loving, loyal companion she’s meant to be. Come say hi to Priscilla today!

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

These Mastiffs are available for adoption close to Toronto, Ontario.
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India

Mastiff Rottweiler

Female, Adult
Toronto, ON
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with kids, House-trained, Spayed or Neutered,
Story
India Rottweiler/Boxer/Dogo Argentino mix (short coat) Large Adult Female   This gorgeous brindle gal is India a 4 year old, 100 pound mixed breed dog who will be up to date on her veterinary care and spayed prior to adoption.  Her current family is not able to provide her with the time or care she deserves.   India is housetrained and crate trained, although, a crate has not been used in the past year or so.  She is used to living in an apartment and is said to be quiet and comfortable being left alone while her family works full-time hours.  She may whine initially when left in a new environment.  She enjoys daily walks for exercise and to do her business.   India is a Mastiff mix, and as such, will most likely become very attached to her family members but may initially be a bit wary of new people and animals.  She warms up to women more quickly than men.  India is currently living with 2 toddlers and is good with them.   India has very limited experience with other dogs and has not lived with another dog.  She has a Husky friend she likes to interact with on leash.  She may react to other dogs when on leash walks who are as far away as on the other side of the street and needs a strong and confident owner to help her work through this behaviour using positive reinforcement based methods.  She has also never lived with a cat.   Her family is able to bathe and brush her and she has been professionally groomed.  Her regular groomer says she is good for grooms.  At the veterinarian, she is muzzled for invasive handling.  Muzzles can be a great tool to help dog handlers feel safe.   If you are looking for a loyal, large breed dog to snuggle with on the couch and believe you can provide India with the care she deserves, please fill out the Adoption Application on our website.       Due to time constraints, we cannot respond to every email asking for more information on a dog. Please carefully review the bio for the dog and our adoption process https://www.speakingofdogs.com/adoption/adoption-process/.  If you are still interested in adopting, please fill out the adoption application form at the bottom of that page. July 11, 2026, 9:40 pm

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Photo of Priscilla

Priscilla

Mastiff

Female, 6 yrs 5 mos
Toronto, ON
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Meet Priscilla, queen of the dog park! Priscilla is such a cutie and just the sweetest girl. She has a curious spirit, a love for treats and has already shown herself to be an affectionate and eager-to-please dog! She always gets excited to see our volunteers and will greet them with her whole body wagging, eager for some attention and maybe a tasty snack or two. On walks, Priscilla is excited to explore and does well when walked at her pace. While she’s confident enough to explore quieter areas, she can get a little spooked by busy or high-traffic zones, but she settles down quickly once she’s in a calmer environment. She’s a quick learner, and she comes right to you when called, especially if there’s a treat involved. Priscilla really enjoys spending time outside, whether walking, playing or simply people-watching. She just enjoys being in the moment! When it’s time to head back, she’s easy to return back home and will happily go back inside for a good petting session. Priscilla is a friendly and sweet-natured dog who thrives on companionship. She will need a patient family that can continue to build her confidence and help her adjust to her new routine at her own pace. She will soon blossom into the loving, loyal companion she’s meant to be. Come say hi to Priscilla today!

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Photo of Kodiak

Kodiak

Mastiff

Male, 10 yrs 3 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.

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Photo of Thor

Thor

Mastiff American Bulldog

Male, Adult
Keswick, ON
Size
(when grown) -
Details
Spayed or Neutered,
Story
Hello there! My name is Thor, Male - neuteredMastiff x American Bulldog MixApprox. 2 years oldI'm a big, lovable marshmallow wrapped in an even bigger package. My heart is as large as my frame, and I'm eager to share all the love I have with my forever family. I tend to form strong attachments to my favourite individuals, protecting them from unknowns though I am focused on establishing positive boundaries with the help of my shelter friends. When it comes to people, I'm friendly but can get a little nervous, especially around sudden movements. I thrive best with slow and gentle introductions. Once I feel comfortable, I transform into your classic wiggle bug, ready to make friends and soak up all the affection you have to offer.I enjoy my meals at a normal pace, but what really gets my tail wagging is praise, treats, and spending time with people. I'm highly motivated by love and snacks, which makes training and bonding with me a rewarding experience. I can become protective over toys, so I would do best in a trade-off situation or with gradually introduced toys once I'm settled into my new home. Too much excitement too quickly can be overwhelming for me.I'm still working on my basic training, which means we can learn together. With your guidance and a few tasty treats, I'm sure to pick up on commands and become the well-mannered companion you're searching for.Given my energy and size, I would thrive in a quiet home without young children-preferably with kids aged 12 years or older. I can be selective with doggy friends, but with a slow introduction, I may have the potential to socialize successfully. I do have a prey drive towards cats and would require a home without feline friends.If you're looking for a gentle giant who will fill your home with love and laughter, I'm your guy. Primary Color: Black Brindle Secondary Color: Black Brindle Weight: 41.007 Age: 2yrs 2mths 0wks

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Photo of Blaze (20260615-05)

Blaze (20260615-05)

Mastiff Mixed Breed (Medium)

Male, Young
Niagara Falls, ON
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, Good with cats,
Story
Blaze is a sweet, gentle pup with a calm nature and a heart full of potential. Rescued alongside his two brothers after being found wandering a lonely remote highway in northern Manitoba, he is now looking for a patient and loving family to help him continue building his confidence. Blaze can be shy when meeting new people, but with kindness, encouragement, and ideally a friendly, well-balanced dog companion, he blossoms more each day. He is wonderful with other dogs, gentle with cats, and is doing well learning to walk on leash. Like any pup, he is still working on his crate and house-training skills, but he is eager to learn and has shown nothing but a sweet, gentle temperament. Could Blaze be the missing piece in your family? Good with Men: Yes, shy at first Good with Women: Yes, shy at first Good with Kids: Yes Good with dogs: Yes Good with cats: Yes Housetrained: Working on it Crate trained: Working on it Energy level: Medium Can be handled/touched: Yes Flight risk: No; however, all dogs should be considered flight risks in new environments Walks on leash: Yes, needs training Leash reactive to people or dogs: No Rides well in car: Yes Food aggressive: No Destructive: Puppy Needs a yard: Yes Needs another dog: No Can live in an apartment: No Please visit our website niagaradogrescue.com to learn more about this amazing pet and to see other available dogs.

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Photo of Mister Parker (20260617-05)

Mister Parker (20260617-05)

Mastiff Labrador Retriever

Male, Young
Niagara Falls, ON
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with dogs, Good with cats, Spayed or Neutered,
Story
Are you looking for the one that melts your heart and your feet warm. Look no further than Mister Parker. How can you resist that face with his slightly crossed eye...he is imperfectly perfect! Mister Parker is currently is in a foster home with four other dogs and a cat so having some fur buddies in the home would make him more comfortable. He is a bit of a couch potato who also likes to weigh down your bed blankets. He is the best at couch naps because most times he is snoring with his eyes open. He walks well on a leash, navigates stairs without issues and is crated at times and just settles in and curls up. Mister Parker would do best in a home with older children as he doesn't see well and has some vision impairment. Because of this, making noise before entering rooms or approaching him is important so as not to startle him. Mister Parker likes to feel safe and secure so a calmer home is preferred. Hearing words of encouragement make him relax and enjoy life to the fullest. He definitely loves being outside and dinner time! Good with adults: Yes Good with Kids: Yes, older preferred due to vision impairment Good with dogs: Yes Good with cats: Yes House trained: Yes, once he understands where to go Crate trained: Yes Energy level: Low Can be handled/touched: Yes Flight risk: No; however, all dogs should be considered flight risks in new environments Food aggressive: No Walks on leash: Yes Leash reactive to people or dogs: No Rides well in car: Yes Destructive: No Needs a yard: Yes Needs another dog: No, but preferred due to vision impairment Can live in an apartment: No Please visit our website niagaradogrescue.com to learn more about this amazing pet and to see other available dogs.

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These pups are in Toronto, Ontario too!

Below are our newest added Mastiffs available for adoption in Toronto, Ontario. To see more adoptable Mastiffs in Toronto, Ontario, use the search tool below to enter specific criteria!
Photo of Kkunyang

Kkunyang

Retriever (Unknown Type) St. Bernard

Female, 8 mos
TORONTO, ON
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with dogs, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
QUICK FACTS Name: Kkunyang Age: 8 months old Gender: Female (Spayed) Breed: Retriever Saint Bernard Mix Color: Brown, White Weight: 26kg / 57lbs Microchipped, Fully Vaccinated Up to Date, Dewormed   MY RESCUE STORY I was rescued from an illegal dog meat farm and given a second chance at life just in time. Thanks to the kindness of my rescuers, those difficult days are now behind me, and I can finally look forward to a brighter future. Now I'm safe, receiving the love and care I've always deserved, and patiently waiting for a forever family to call my own. I can't wait to start the next chapter of my life filled with love, happiness, and new adventures.   MY HEALTH All vaccinations up-to-date Healthy with no known health issues   MY PERSONALITY I'm a gentle giant who loves both people and my dog friends! Despite my difficult past, I've never lost my trust in people. The staff and volunteers are always complimenting how incredibly sweet, patient, and gentle I am. I have a calm, loving nature and enjoy receiving affection from everyone I meet. Even during my visit to the veterinary hospital for my spay surgery, I happily accepted pets and attention from the hospital staff, winning over everyone with my kind personality. Because of my gentle temperament, I would likely do well in many different types of homes with proper introductions and a little time to adjust. If you're looking for a big dog with an even bigger heart, I'm ready to fill your home with love, loyalty, and endless cuddles.   MY SOCIAL SKILLS · With People: I absolutely love people and am friendly with everyone I meet! During my profile photoshoot, I happily lay on my side, soaking up the fresh air while enjoying pets and affection from everyone around me. Despite my large size, I'm incredibly gentle, happily allow myself to be picked up, and love rolling over to show my belly—even to new friends! My affectionate, easygoing personality makes it hard not to fall in love with me. · With Dogs: I love meeting new dog friends and enjoy saying hello and playing together! I'm a gentle girl with a calm, easygoing nature and am known for being a true peacemaker. Even if another dog is being pushy or rude, I'd much rather quietly walk away than get involved. My friendly personality helps me get along well with other dogs and makes me a wonderful canine companion. · With Cats: During walks, I may pause to look at cats with curiosity, but I quickly lose interest and continue on my way. A cat test can be arranged upon request to help ensure the best match. With my gentle and easygoing personality, I may do well in a home with a dog-savvy cat given proper introductions, but a cat test is recommended to better assess compatibility.   ENERGY LEVEL & ACTIVITY I have a moderate to higher energy level and love spending time outdoors exploring, sniffing, and having fun! Whether it's going for long walks, playing, or going on adventures with my family, I'm always happy to be by your side. Once I've had enough exercise and excitement, I'm more than happy to come inside, relax, and settle down for a cozy nap. I have a wonderful balance of being active outdoors while enjoying quiet time at home.   TRAINING & HABITS I walk well on leash and follow my handler's lead nicely. I'm generally a quiet pup and rarely bark. I know how to rest calmly in my kennel and can potty both indoors using a pee pad and outdoors. With a consistent walking routine, I'll happily transition to outdoor potty only. Despite my young age, I'm already incredibly well mannered and have a calm, gentle nature. I have a wonderful foundation and will continue to thrive with love, consistency, and positive guidance.   MY IDEAL HOME I’m searching for a patient, loving family who can help me become the best version of myself. I’ll thrive in a home with: • A family that will provide me with a safe haven – where I can decompress, be myself in a stable environment • A family that understands my past and is patient with me throughout • A family that enjoys indoor and outdoor time together • A family that will love and cherish me forever   SPECIAL NOTES I'm a gentle giant with a heart full of love. Despite everything I've been through, I've remained incredibly trusting, affectionate, and kind to both people and other dogs. The staff and volunteers often say I have one of the sweetest temperaments and are always impressed by how calm and well mannered I am, especially for such a young dog. I have a beautiful smile that lights up the room and a peaceful personality that makes everyone feel at ease. Whether I'm enjoying a walk, meeting new friends, or simply relaxing beside my people, I'm happiest just being part of the family. I'm still young and have so much potential ahead of me. With continued love, guidance, and a stable home, I'm sure to blossom into an amazing lifelong companion. If you're looking for a loyal, gentle, and affectionate best friend, I can't wait to meet you.   KKUNYANG'S YOUTUBE PLAYLIST   Apply to foster or adopt: https://www.welcomedogkorea.org For Inquiries: info@welcomedogkorea.co ##2780438##

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Use the search tool below to browse adoptable Mastiff puppies and adults Mastiff in Toronto, Ontario.

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Mastiff puppies and dogs in nearby cities

Mastiff Puppies near me Mastiff in Acton, ON Mastiff in Alliston, ON Mastiff in Bolton, ON Mastiff in Bradford, ON Mastiff in Georgetown, ON Mastiff in Hamilton, ON Mastiff in King, ON Mastiff in Milton, ON Mastiff in Orangeville, ON Mastiff in Oshawa, ON Mastiff in Stouffville, ON Mastiff in Tottenham, ON Mastiff in Uxbridge, ON

Related breeds in Toronto, Ontario

Bullmastiffs in Toronto, Ontario Neapolitan Mastiffs in Toronto, Ontario Saint Bernards in Toronto, Ontario

Mastiff shelters & rescues in Toronto, Ontario

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

Here are a few organizations closest to you:

Rescue

2.8 miles

Speaking of Dogs Rescue

Toronto, ON M9W 3L8

Pet Types: dogs

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Shelter

9.1 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

15.5 miles

Dog Tales Rescue and Sanctuary

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

Pet Types: cats, dogs

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Shelter

36.7 miles

Georgina Animal Shelter and Adoption Centre

26815 Civic Centre Road, Keswick, ON L4P 3G1

Pet Types: cats, dogs

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Rescue

38.7 miles

Niagara Dog Rescue

Niagara Falls, ON L0S 1J0

Pet Types: dogs

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Rescue

39.6 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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Looking for a specific shelter or rescue?

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 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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