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Mastiff puppies and dogs in Welland, Ontario

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

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Adopt a Mastiff near you in Welland, Ontario

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These Mastiffs are available for adoption close to Welland, Ontario.
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No photo available for Izzy

Izzy

Mastiff

Female, 5 yrs
Toronto, ON
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Not good with cats, Needs experienced adopter, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
MEET IZZY! BIG HEART. BIG PERSONALITY. LOTS OF LOVE TO GIVE! Looking for a loyal companion who will make you smile, keep you entertained and happily claim a spot beside you on the couch? Meet Izzy! Unfortunately, due to know fault of her own, Izzy is being re-homed and is looking for her forever family. Izzy is a smart, affectionate, people-loving girl who thrives on human companionship. She’s eager to learn, knows lots of commands, walks nicely on leash, has great recall in the right environment and can even tackle an agility-style jumping course! She also loves a good game of tug! A few things to know about Izzy: -Loves her people and cuddling on the couch. -Super smart and eager to please. -Enjoys walks, playtime and learning new things. -Generally great with visitors and walks nicely past other dogs. Izzy’s ideal home: Izzy is a big, enthusiastic girl who sometimes forgets just how big she is! She would do best with adults or a family with older children. She would ideally be the only pet in the home, as she can be dominant around other animals and resource guards around food. No cats or small animals. She has a few things she’s still working on, including being vocal when confined and needing some extra patience during vet visits. The bottom line? Izzy is a wonderful dog with so much love, intelligence and personality to give. She’s looking for someone who understands her needs, appreciates her big personality and will give her the consistency and love she deserves. In return, you’ll have a devoted companion, a loyal sidekick and a whole lot of love. Could you be Izzy’s person? She’s ready for her next chapter! ❤️
Photo of HK

HK

Mastiff

Male, 6 yrs 3 mos
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 Max

Max

Mastiff

Male, 6 yrs 8 mos
Etobicoke, ON
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Needs experienced adopter, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Max is an energetic, special boy! Max loves people but when he gets excited he can be quite mouthy and when he doesn’t get his way can be pushy. These are typical puppy behaviours but unfortunately he didn’t get the necessary training and guidance as he grew older and larger. Our Trainer will work with the successful adopters to ensure a successful transition. Potential adopters should expect to attend up to 6 (complimentary) training classes with his Trainer. ABOUT MAX: - Cane Corso Mix, Large-sized, High-energy - 6 year-old, Male, 75 lbs - Max came to EHS as an unclaimed stray - Max loves to go on hikes and runs and to play with his toys and interactive games - Max is neutered, house-trained, microchipped and has core vaccinations MAX’S IDEAL HOME: - A family that lives in a quiet neighbourhood - Rural area preferred - Previous dog experience required - Active but patient and calm family that is willing to give him plenty of exercise - Experience handling large breed dogs and committed to continuing his training - No other pets, no children and few visitors in the home Are you the special adopter for this special boy? If you have any questions, contact: jenc.ehs@gmail.com
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 Brodie

Brodie

Cane Corso Mastiff

Male, Puppy
Hamilton, ON
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
-
Story
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Photo of Miga

Miga

Cane Corso Mastiff

Male, Puppy
Hamilton, ON
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Not good with dogs, Not good with cats, House-trained, Shots are up-to-date,
Story
Hello, this pup is called Miga! He is currently 8 months old and was born on February 10th of 2026. Miga is a bit shy at first but once you gain his trust, he is completely loyal to you. He enjoys being by your side and loves to cuddle and watch tv. Miga has had his first set of vaccines and deworming completed.

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Mastiff shelters & rescues in Welland, Ontario

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

Here are a few organizations closest to you:

Shelter

18.1 miles

Niagara County SPCA

2100 Lockport Rd, Niagara Falls, NY 14304

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

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Rescue

45.9 miles

Team Dog Rescue

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

Pet Types: dogs

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Shelter

46.7 miles

Toronto Humane Society

11 River Street, Toronto, ON M5A 4C2

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

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Shelter

46.8 miles

Etobicoke Humane Society

67 Six Point Rd., Etobicoke, ON M8Z 2X3

Pet Types: cats, dogs

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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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