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Mastiff puppies and dogs in Ontario

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

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Adopt a Mastiff in Ontario Search for a Mastiff puppy or dog Mastiff puppies and dogs in Ontario cities Mastiff shelters and rescues in Ontario Learn more about adopting a Mastiff puppy or dog

Adopt a Mastiff near you in Ontario

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

Dude

Mastiff

Male, 5 yrs
Belleville, ON
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
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Story
Meet Dude! At 5 years old, Dude is an old soul with a heart as big as he is. He’s a friendly, easygoing guy who would love nothing more than to be friends with everyone he meets. Don’t let his size fool you—Dude is all about companionship, affection, and good vibes.He has his energetic moments when he’s ready to play and have some fun, but once he’s gotten his zoomies out, he’s perfectly content to settle in and relax. Dude has mastered the art of balancing fun and chill.If you’re looking for a big-hearted best friend who enjoys meeting new people, having a little fun, and then kicking back for some quality relaxation, Dude might just be your guy.

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Photo of Moto Moto

Moto Moto

Mastiff

Male, 4 yrs
Guelph, ON
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
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Story
Hey there, I’m Moto Moto! WHAT YOU’LL LOVE ABOUT ME…- I’m a gentle giant- I LOVE being in the car!- I’m affectionate with my humans- I walk well on leash (unless there’s something really exciting I want to get to!) MY NEW FAMILY SHOULD…- Expect me to be a bit cautious when I first meet new people, and require strangers to give me space if needed.- Be comfortable walking a large, strong dog.- Use a positive training approach.- Avoid using harsh communication to train me.- Understand that I might not want to meet every dog in the neighbourhood, but may be okay with a few well-mannered dog friends.MY IDEAL HOME INVOLVES…- CHILDREN: Teenagers should be fine, but no young children.- OTHER DOGS: Potentially, with a calm and respectful dog.- CATS: Potentially, with a cat who is comfortable around large dogs.- FIRST-TIME DOG OWNERS: Someone with large dog breed experience.- FENCED-IN YARD: Not necessary.- HOUSING ENVIRONMENT: No apartment buildings.- SOMEONE HOME MOST OF THE DAY: Not necessarily.SOME OTHER THINGS TO KNOW ABOUT ME…- ACTIVITY LEVEL: Low-medium.- HOUSE-TRAINED: Yes.If you think I would make a good match for your home, please click the `Adopt Me` button to apply!

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Photo of Maggie

Maggie

Mastiff

Female, 4 yrs 1 mo
Lindsay, ON
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
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Story
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Photo of Summer

Summer

Mastiff/American Bulldog

Female, 3 yrs 2 mos
Everett, ON
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
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Story
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Photo of Delilah (Special Paws)

Delilah (Special Paws)

Mastiff

Female, 2 yrs 6 mos
Windsor, ON
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
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Story
Meet Delilah! Delilah may need a little time to show you her heart, but once she does, you’ll discover a very sweet, very snuggly girl. New people and situations can be overwhelming for Delilah, so she’ll need a patient adopter who will give her time to decompress, build confidence, and come out of her shell at her own pace. Once she feels safe, she loves attention, leans in for pets, and is happiest being close to her people. Delilah is food motivated (hot dogs are her favourite!), knows her sit, and is ready to work on her leash manners. She can be quite the enthusiastic puller, so her adopter should be prepared to help her learn some polite walking skills. She was wonderfully polite meeting another dog and may do well with a canine companion, pending a proper introduction. Her history with cats is unknown. She can potentially live with children, but older kids or dog-savvy teens are recommended. Delilah is a Special Paws girl and requires daily allergy medication, likely for the rest of her life. Her adopter will need to be comfortable providing this ongoing care. She can also be sensitive about having her paws and ears handled, so patience and respect for her boundaries will be important. If you believe that patience, kindness, treats, and love can help a nervous dog blossom, Delilah might be your girl. Give her the time she needs, and you’ll get to watch a sweet, affectionate companion discover just how wonderful life can be. Delilah is ready for her fresh start. Could you be the person she’s been waiting for? She is a special paws adoption, which means she does have medical needs that need tending to. She will be needing lifelong allergy meds, but because of this, her adoption fee is totally up to you ($30 admin fee still applies)!

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Photo of Elio

Elio

Mastiff

Male, Adult
King City, ON
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
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Story
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Search for a Mastiff puppy or dog

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

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Mastiff puppies and dogs in Ontario cities

Mastiff Puppies near me Mastiff in Acton Mastiff in Alliston Mastiff in Almonte Mastiff in Amherstburg Mastiff in Angus Mastiff in Arnprior Mastiff in Aylmer Mastiff in Ayr Mastiff in Azilda Mastiff in Barrie Mastiff in Beamsville Mastiff in Beeton Mastiff in Belleville Mastiff in Binbrook Mastiff in Blenheim Mastiff in Bobcaygeon Mastiff in Bolton Mastiff in Bowmanville Mastiff in Bracebridge Mastiff in Bradford Mastiff in Brantford Mastiff in Brighton Mastiff in Brockville Mastiff in Caledon East Mastiff in Caledonia Mastiff in Campbellford Mastiff in Carleton Place Mastiff in Casselman Mastiff in Chatham Mastiff in Chelmsford Mastiff in Clinton Mastiff in Cobourg Mastiff in Cochrane Mastiff in Collingwood Mastiff in Cornwall Mastiff in Corunna Mastiff in Crystal Beach Mastiff in Deep River Mastiff in Delhi Mastiff in Dorchester Mastiff in Dryden Mastiff in Dunnville Mastiff in Elliot Lake Mastiff in Elmira Mastiff in Embrun Mastiff in Espanola Mastiff in Essex Mastiff in Exeter Mastiff in Fergus Mastiff in Fort Erie Mastiff in Fort Frances Mastiff in Gananoque Mastiff in Georgetown Mastiff in Goderich Mastiff in Gravenhurst Mastiff in Guelph Mastiff in Haileybury Mastiff in Hamilton Mastiff in Hanover Mastiff in Hawkesbury Mastiff in Hearst Mastiff in Huntsville Mastiff in Ingersoll Mastiff in Innisfil Mastiff in Iroquois Falls Mastiff in Kanata Mastiff in Kapuskasing Mastiff in Kemptville Mastiff in Kenora Mastiff in Keswick Mastiff in Kincardine Mastiff in King Mastiff in Kingston Mastiff in Kirkland Lake Mastiff in Kitchener Mastiff in Leamington Mastiff in Lindsay Mastiff in Listowel Mastiff in Lively Mastiff in London Mastiff in Manotick Mastiff in Marathon Mastiff in Meaford Mastiff in Midland Mastiff in Milton Mastiff in Mitchell Mastiff in Mount Albert Mastiff in Mount Forest Mastiff in Napanee Mastiff in Newcastle Mastiff in New Hamburg Mastiff in New Liskeard Mastiff in Niagara Falls Mastiff in Nobleton Mastiff in North Bay Mastiff in Orangeville Mastiff in Orillia Mastiff in Oshawa Mastiff in Ottawa Mastiff in Owen Sound Mastiff in Paris Mastiff in Parry Sound Mastiff in Pembroke Mastiff in Perth Mastiff in Petawawa Mastiff in Peterborough Mastiff in Petrolia Mastiff in Picton Mastiff in Port Colborne Mastiff in Port Dover Mastiff in Port Elgin Mastiff in Port Hope Mastiff in Port Perry Mastiff in Prescott Mastiff in Renfrew Mastiff in Richmond Mastiff in Ridgetown Mastiff in Rockland Mastiff in Rockwood Mastiff in Russell Mastiff in Sarnia Mastiff in Sault Ste. Marie Mastiff in Shelburne Mastiff in Simcoe Mastiff in Smiths Falls Mastiff in Smithville Mastiff in Southampton Mastiff in Stayner Mastiff in St Catharines Mastiff in St George Mastiff in St Marys Mastiff in Stouffville Mastiff in Stratford Mastiff in Strathroy Mastiff in St Thomas Mastiff in Sturgeon Falls Mastiff in Sudbury Mastiff in Sutton West Mastiff in Tavistock Mastiff in Thunder Bay Mastiff in Tilbury Mastiff in Tillsonburg Mastiff in Timmins Mastiff in Toronto Mastiff in Tottenham Mastiff in Uxbridge Mastiff in Vineland Mastiff in Walkerton Mastiff in Wallaceburg Mastiff in Wasaga Beach Mastiff in Waterford Mastiff in Welland Mastiff in Wellesley Mastiff in Windsor Mastiff in Woodstock

Mastiff shelters & rescues in Ontario

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

Here are a few organizations

Rescue

Nakoma Rescue

Addison , ON K0E 1A0

Pet Types: dogs

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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 information

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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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