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Mastiff puppies and dogs in Smithville, Ontario

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

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Adopt a Mastiff near you in Smithville, Ontario

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These Mastiffs are available for adoption close to Smithville, Ontario.
Photo of Ferris (20260811-03)

Ferris (20260811-03)

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,
Story
Ferris is a gentle, shy little soul who just needs some time and patience to feel comfortable. Once he begins to feel safe, his sweet personality starts to shine through. Ferris is good with kids and other dogs and would love a family who can help build his confidence and show him just how wonderful life in a loving home can be. With a patient family, lots of love, and positive experiences, this little one has all the potential to grow into a wonderful, loyal companion. If you're looking for a sweet puppy to welcome into your family and help blossom into their best self, Ferris may be the perfect match. Good with women: yes Good with men: yes Good with kids: yes Good with other dogs: yes Good with cats: no exposure House trained: working on it Crate trained: working on it Energy level: high-puppy Can be handled/touched: yes Barker: no Flight risk: All newly adopted or fostered dogs are a flight risk Food aggressive: no Current food: Walks on leash: working on it Leash reactive to people or dogs: no Rides well in car: yes Destructive: puppy Needs a home with a yard: yes Needs a home with 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.
Photo of Sloane (20260811-04)

Sloane (20260811-04)

Mastiff Mixed Breed (Medium)

Female, Young
Niagara Falls, ON
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs,
Story
Sloane is a gentle, shy little soul who just needs some time and patience to feel comfortable. Once she begins to feel safe, her sweet personality starts to shine through. Sloane is good with kids and other dogs and would love a family who can help build her confidence and show her just how wonderful life in a loving home can be. With a patient family, lots of love, and positive experiences, this little one has all the potential to grow into a wonderful, loyal companion. If you're looking for a sweet puppy to welcome into your family and help blossom into their best self, Sloane may be the perfect match. Good with women: yes Good with men: yes Good with kids: yes Good with other dogs: yes Good with cats: no exposure House trained: working on it Crate trained: working on it Energy level: high-puppy Can be handled/touched: yes Barker: no Flight risk: All newly adopted or fostered dogs are a flight risk Food aggressive: no Current food: Walks on leash: working on it Leash reactive to people or dogs: no Rides well in car: yes Destructive: puppy Needs a home with a yard: yes Needs a home with 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.
Photo of Spotty Dotty (20260625-05)

Spotty Dotty (20260625-05)

Mastiff Mixed Breed (Medium)

Female, Adult
Niagara Falls, ON
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Spayed or Neutered,
Story
Meet Spotty Dotty! Spotty Dotty's story began with heartbreak, but her future is filled with hope. Found abandoned in Northern Manitoba, Spotty Dotty spent weeks waiting faithfully for her owners to return. Sadly, no one ever came back for her. By the time caring neighbours found her, she was severely underweight and starving, yet she never lost her gentle spirit. Since arriving in foster care, Spotty Dotty has flourished. She has settled beautifully into her foster home, adores her foster dog siblings, and has shown everyone what a truly special dog she is. Despite everything she has endured, she remains incredibly affectionate, loving, and trusting. Spotty Dotty is a cuddle enthusiast who loves being close to her people. She has a calm and gentle demeanor that is remarkable for a dog her age and makes her a wonderful companion for a family looking for a loyal best friend. Her sweet nature, kind heart, and quiet resilience shine through in everything she does. Having experienced more hardship than any dog should, Spotty Dotty deserves a family who will cherish her and show her the love she has always deserved. In return, she will reward you with unwavering loyalty, endless affection, and a lifetime of companionship. You won't regret opening your heart to Spotty Dotty. She is truly a treasure-a gentle, loving soul who is ready to spend the rest of her life knowing she is safe, wanted, and loved. Medical notes: Extremely thin Crate size recommended: XL Good with women: yes Good with men: yes Good with kids: yes Good with other dogs: yes Good with cats: untested House trained: yes Crate trained: yes Energy level: medium Can be handled/touched: yes Barker: no Flight risk: no; however all dogs should be considered flight risks in new environments Food aggressive: no Current food: kibble Walks on leash: yes Leash reactive to people or dogs: no Rides well in car: unknown Destructive: no Needs a home with a yard: yes Needs a home with another dog: not necessarily but likes other dogs 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.
Photo of HK

HK

Mastiff

Male, 6 yrs 1 mo
Toronto, ON
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Meet HK, an all-star walking companion who is frequently called the best guy by the volunteers and staff who adore him! If you are looking for a clever, treat-motivated dog who loves to learn, HK is ready to impress you. HK is a sweet and enthusiastic gentleman who is an absolute joy to take on outdoor adventures. HK loves spending time with his people — he’ll happily lean in for cuddles and soak up all the affection you’re willing to give. His favorite things include treats, exploring new places, and being your loyal sidekick wherever the day takes you. Recently during training games, he has been displaying excellent handler focus. Responsive to verbal encouragement, he has learned to happily check in and disengage from distractions for a tasty treat. After a fun, engaging walk, he loves winding down with a great petting session and lots of affection. HK may be happiest as the only dog in the home, where he can soak up all the attention and continue building his confidence out in the world. If you are looking for a smart, loving partner for your daily walks, couch cuddles and training adventures, come meet HK today!
Photo of Chippy (20260509-01)

Chippy (20260509-01)

Shepherd (Unknown Type) Mastiff

Male, Adult
Niagara Falls, ON
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Good with cats, Spayed or Neutered,
Story
**Meet Chippy - A Gentle Giant with a Playful Spirit!** Chippy is a handsome Shepherd/Mastiff mix with the perfect combination of playful energy and a calm, loving nature. At three years old, he's a wonderful companion who enjoys a good game just as much as he enjoys relaxing with his family. With his sweet personality, loyal heart, and easy going temperament, Chippy is ready to find the forever home he's always deserved. Chippy and his brother, Brutus, have been cherished members of their family since they were puppies. Sadly, due to circumstances completely beyond their family's control, they must now find new homes after a community member repeatedly threatened the dogs. Wanting only to keep them safe, their family made the difficult decision to surrender them so they could have the opportunity to live happy, secure lives with loving families. Chippy is a friendly, social boy who truly loves people. He's wonderful with men, women, children, other dogs, and even cats, making him an excellent fit for many different types of families. His affectionate nature and gentle disposition mean he quickly becomes everyone's friend, and he loves being included in whatever his people are doing. If there's one thing Chippy is passionate about, it's **playtime!** He absolutely loves chasing tennis balls, retrieving sticks, and proudly carrying his favourite treasures around the yard. Whether it's a game of fetch, exploring outdoors, or "helping" with the woodpile, Chippy approaches life with enthusiasm and a happy wagging tail. His playful side is balanced by his calm demeanor, making him just as content relaxing with his family after a day of fun. Having spent his life in a rural environment, Chippy would thrive in a home with a securely fenced yard where he has room to run, play, and enjoy the outdoors. A rural property or quiet suburban neighbourhood would suit him best as he settles into his new home. Chippy is house trained, well-mannered indoors, and not destructive or barky. He enjoys being close to his family and is happiest when he's included in everyday life. While he's still learning to walk on leash, he's eager to continue building his confidence with positive reinforcement, patience, and gentle guidance. Chippy also enjoys the companionship of other dogs and would love a home with a friendly canine sibling. Having another dog around would provide companionship, playtime, and help make his transition into a new home even smoother. Chippy is the kind of dog who will happily join you for a game in the yard, a walk through the countryside, or a quiet evening at home. His gentle heart, playful personality, and unwavering loyalty make him a truly special companion. **If you're looking for a loving best friend who will bring joy, laughter, and unconditional love into your life, Chippy is ready to meet you. Open your heart to this wonderful boy, and he'll reward you with a lifetime of devotion.** Good with men: YesGood with women: YesGood with kids: YesGood with dogs: YesGood with cats: YesHousetrained: YesCrate trained: NoCan be handled/touched: YesEnergy level: MediumFlight risk: All newly adopted or fostered dogs are a flight riskFood aggressive: NoBarker: NoWalks on leash: No, needs trainingLeash reactive to people or dogs: NoRides well in car: UnknownDestructive: NoNeeds a home with a yard: YesNeeds a home with another dog: YesCan live in an apartment: No Please visit our website niagaradogrescue.com to learn more about this amazing pet and to see other available dogs.
Photo of Brutus (20260509-02)

Brutus (20260509-02)

Shepherd (Unknown Type) Mastiff

Male, Adult
Niagara Falls, ON
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Good with cats, Spayed or Neutered,
Story
Meet Brutus, the ultimate gentle giant. This handsome Shepherd/Mastiff mix from is the perfect blend of majestic size and pure, easygoing sweetness. He has officially outgrown the chaotic puppy phase, leaving him with a lifetime of love and gentle adventures left to share. Brutus and his brother, Chippy, were deeply loved by their family since puppyhood. Sadly, to protect them from an unsafe situation involving a neighbor, their family had to make the heartbreaking choice to surrender them to rescue. Now, Brutus is searching for a safe, forever landing pad where he will always be cherished, protected, and given the stability he truly deserves. You will quickly fall in love with Brutus because he is an absolute dream of a companion. He is exceptionally friendly and gentle with men, women, and children alike. He also gets along wonderfully with other dogs and is perfectly happy sharing his home with cats. Indoors, he makes the perfect housemate; he is fully house-trained, quiet, non-destructive, and exceptionally well-mannered. As a relaxed, affectionate soul, he prefers to take life one day at a time, quietly cuddling right by your side. Brutus's ideal forever home is a rural or quiet suburban setting with a securely fenced yard where he has plenty of space to stretch his long legs. Because he has always lived with another dog, he would absolutely love a friendly canine sibling to help him settle in. As a country boy, he is still getting used to collars and leashes, but a well-fitted harness, positive reinforcement, and a little patience will easily turn daily walks into his favorite new adventure. Brutus isn't looking for anything extraordinary-just a devoted family to love him forever. Good with men: YesGood with women: YesGood with kids: YesGood with dogs: YesGood with cats: YesHouse trained: YesCrate trained: YesEnergy level: MediumBarker: NoCan be handled/touched: YesFlight risk: All newly adopted or fostered dogs are a flight riskFood aggressive: NoWalks on leash: No, needs trainingLeash reactive to people or dogs: NoRides well in car: UnknownDestructive: NoNeeds a home with a yard: YesNeeds a home with another dog: YesCan 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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Mastiff shelters & rescues in Smithville, Ontario

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

Here are a few organizations closest to you:

Rescue

26 miles

Niagara Dog Rescue

Niagara Falls, ON L0S 1J0

Pet Types: dogs

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Shelter

39.3 miles

Toronto Humane Society

11 River Street, Toronto, ON M5A 4C2

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

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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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