Adopt

Mastiff puppies and dogs in Milton, Ontario

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

Picture of Mastiff

Adopt a Mastiff near you in Milton, 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 Milton, Ontario

These Mastiffs are available for adoption close to Milton, Ontario.
Photo of India

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.     June 23, 2026, 12:15 pm
Photo of Honey

Honey

Mastiff Mixed Breed (Large)

Female, 9 yrs 11 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.
Photo of Priscilla

Priscilla

Mastiff

Female, 6 yrs 4 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!
Photo of HK

HK

Mastiff

Male, 6 yrs
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
HK is a big, goofy 100-pound sweetheart who truly believes he’s a lap dog! This gentle giant has a heart as big as his paws and is always ready to make you smile with his silly antics and affectionate personality. HK loves spending time with his people — he’ll lean right in for cuddles and happily soak up all the love you have to offer. HK’s favorite things? Treats, exploring new places, and being your #1 sidekick. He enjoys going for walks and exploring the world, though due to his size and strength, he’ll need someone comfortable handling a large dog. HK is currently working on his leash manners and learning to stay calm when he spots other dogs. With ongoing positive reinforcement training, he’s making great progress and showing that he’s eager to learn! If you’re looking for a loyal, loving best friend who’ll fill your life with laughter (and maybe take up a bit of space on the couch), HK is your guy!
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.
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.

Search for a Mastiff puppy or dog

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

Mastiff puppies and dogs in nearby cities

Related breeds in Milton, Ontario

Mastiff shelters & rescues in Milton, Ontario

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

Here are a few organizations closest to you:

Rescue

19.2 miles

Speaking of Dogs Rescue

Toronto, ON M9W 3L8

Pet Types: dogs

More an arrow icon

Rescue

26.3 miles

Team Dog Rescue

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

Pet Types: dogs

More an arrow icon

Shelter

27.5 miles

Toronto Humane Society

11 River Street, Toronto, ON M5A 4C2

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

More an arrow icon

Rescue

33.8 miles

Dog Tales Rescue and Sanctuary

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

Pet Types: cats, dogs

More an arrow icon

Rescue

43.9 miles

Niagara Dog Rescue

Niagara Falls, ON L0S 1J0

Pet Types: dogs

More an arrow icon

Rescue

47.5 miles

Alliston & District Humane Society

5545 Tosorontio Concession 4, Everett, ON L0M 1J0

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

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