Adopt
Rehome
Menu Hamburger Icon

Mastiff puppies and dogs in Newcastle, Ontario

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

Picture of Mastiff

Learn More:

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

Adopt a Mastiff near you in Newcastle, 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 Newcastle, Ontario

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

Birch

Mastiff

Female, Adult
Stouffville, ON
Size
(when grown) -
Details
Spayed or Neutered,
Story
Meet Birch, a beautiful 2-year-old Mastiff mix with a big heart and an even bigger personality!To help Birch thrive, she will need a home that can meet her specific requirements:No other animals - Birch is very dog reactive and must be the only pet in the household.No small children - While friendly, she can be nervous at first and a bit jumpy when excited, so an adult-only or older-child home will be best.Birch is looking for a family who can give her the love, structure, and stability she needs. In return, she'll offer endless loyalty, companionship, and a wagging tail to greet you every day!My adoption fee is $468 because I am a long term resident, this fee includes me coming fully vaccinated, dewormed, microchipped, spayed, and with a month's worth of FREE food! Primary Color: Brindle Secondary Color: Brindle Weight: 33 Age: 2yrs 3mths 3wks

Learn More

Small right facing arrow
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 4 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.

Learn More

Small right facing arrow
We'll also keep you updated on Kodiak's adoption status with email updates.
Photo of Kodiak

Kodiak

Mastiff

Male, 9 yrs 8 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.

Learn More

Small right facing arrow
We'll also keep you updated on Malik's adoption status with email updates.
Photo of Malik

Malik

Mastiff

Male, 1 yr 5 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
-

Learn More

Small right facing arrow
We'll also keep you updated on Thor's adoption status with email updates.
Photo of Thor

Thor

Mastiff American Bulldog

Male, Young
Keswick, ON
Size
(when grown) -
Details
Spayed or Neutered,
Story
Hello there! My name is Thor, Male - neuteredMastiff x American Bulldog MixApprox. 1 year, 6 months oldI'm a big lovable marshmallow in a BIG package. You'll find that my heart is just as large as my frame, and I'm ready to share all the love I have with my forever family.When it comes to people, I'm friendly but can be a little nervous, especially around sudden movements. I thrive best with slow and gentle introductions. Once I feel comfortable, I'm your classic wiggle bug, eager to make friends and soak up all the affection you have to offer.I haven't quite figured out which toys I like best yet, but I'm excited to explore and find my favourites with you! What really gets my tail wagging is praise, treats, and people. I'm highly motivated by love and snacks, which will make training and bonding with me a delightful experience.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 looking for.So, 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: 41.2 Age: 1yrs 6mths 3wks

Learn More

Small right facing arrow
We'll also keep you updated on Max's adoption status with email updates.
Photo of Max

Max

Mastiff St. Bernard

Male, Young
Keswick, ON
Size
(when grown) -
Details
Spayed or Neutered,
Story
Hi, my name is Max, Male - neuteredMastiff St. Bernard MixApprox. 1 year, 6 months oldI'm a cheerful and lovable goofball, sometimes blissfully unaware of my size, but in the best possible way. I certainly know how to pose for a treat, though let's be honest-I'm always a sight to behold! I love going for walks and bringing along my favourite stuffed toy for the journey. If you want to play outside, just look at my tail wagging high with excitement! However, what I truly need is a quiet home without children or other animals. This kind of environment allows me to relax and thrive, ensuring I can be the best companion for you. Primary Color: White Secondary Color: Brindle Weight: 38.005 Age: 1yrs 7mths 2wks

Learn More

Small right facing arrow

Search for a Mastiff puppy or dog

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

    an arrow icon
location arrow icon Current location
  • New York, NY
  • Los Angeles, CA
  • Houston, TX
  • Dallas, TX
  • El Paso, TX

Sorry, we can’t find that location! Please try again.

    Age
    an arrow icon

Mastiff puppies and dogs in nearby cities

Mastiff Puppies near me Mastiff in Bowmanville, ON Mastiff in Cobourg, ON Mastiff in Lindsay, ON Mastiff in Oshawa, ON Mastiff in Peterborough, ON Mastiff in Port Hope, ON Mastiff in Port Perry, ON Mastiff in Stouffville, ON Mastiff in Uxbridge, ON

Related breeds in Newcastle, Ontario

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

Mastiff shelters & rescues in Newcastle, Ontario

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

Here are a few organizations closest to you:

Shelter

32.2 miles

Ontario SPCA Provincial Education & Animal Centre (PEAC)

16586 Woodbine Ave, Stouffville, ON L4A 2W3

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

More an arrow icon

Rescue

43.8 miles

Team Dog Rescue

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

Pet Types: dogs

More an arrow icon

Rescue

46.1 miles

Dog Tales Rescue and Sanctuary

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

Pet Types: cats, dogs

More an arrow icon

Shelter

47.2 miles

Georgina Animal Shelter and Adoption Centre

26815 Civic Centre Road, Keswick, ON L4P 3G1

Pet Types: cats, dogs

More an arrow icon

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!

magnifying glass with cat and dog

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

clipboard with list

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.

Learn More an arrow icon