Already adopted? Let us know!
When you share your adoption story with us, we’ll send you free deals on pet parent favorites like Greenies, Royal Canin, Whistle smart devices, Wisdom DNA tests, and more.
Close button icon
Adopt

Mastiff puppies and dogs in Toronto, Ontario

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

Picture of Mastiff

Adopt a Mastiff near you in Toronto, Ontario

These Mastiffs are available in Toronto, Ontario.
Photo of Po Boy

Po Boy

Mastiff Black Mouth Cur

Male, 1 yr 4 mos
Toronto, ON
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Spayed or Neutered,
Story
**This dog is being fostered in southern Ontario. If you're interested in adopting him, please go to our website, lastminutedogrescue.com, to fill out an application! Po-Boy has been wonderful company in our care as fosters! We can tell he wasnt shown much love where he came from as he curls up on the ground when receiving affection (which he very much loves!). He has adjusted well, going to the bathroom outside and loves exploring the outdoors! He loves belly scratches, giving kisses and he is great with his crate! Po-Boy is such a sweet dog and just wants (and deserves) a loving and safe place to call home. Name:Po-BoyWeight: ~65 poundsAge: ~1.5 yearsGender: MaleBreed: Mastiff mixColour: TanMedical (past and present) & HW Status: HealthyFixed: YesGood with adults: Yes with proper introductionsGood with kids: NoGood with dogs: YesGood with cats: YesHouse trained: YesCrate trained: YesCrate aggressive: No Food aggressive: NoLeash trained: YesEnergy level: MediumSuitable for an apartment: NoCan be handled: Yes but nervous and shouldnt be touched by strangersBarker: No

Or, how about these Mastiffs in cities near Toronto, Ontario

These Mastiffs are available for adoption close to Toronto, Ontario.
Photo of Danny

Danny

Mastiff Labrador Retriever

Female, adult
Toronto, ON
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Spayed or Neutered,
Story
  Danny is an approximately 3 year old spayed female Mastiff/Lab mix weighing approx. 90 pounds    Things we love about Danny: She quickly attaches to her human, loves attention and is a real cuddle bug,  She has such an expressive face and her foster mum thinks she's a wonderful girl. She's a smart girl and we just learned that Danny is a registered service dog! She walks well on leash, is a proper lady and rarely pulls. She gets excited at mealtimes and eats quite slowly for such a large dog.  She's great with her foster brother Puggle, short "hellos" then they do their own thing, which suits her foster brother's personality.  She can be playful - chases balls (not so much returning them) and will goof around on her own. She likes to push between your legs for some attention. Absolutely fine being home on her own, not destructive at all and no barking. She will bark to let you know if someone is at the door. She can be pretty chill snoozing on the sofa, the floor, or her bed during the day while her foster mum works and she sleeps throughout the night. She enjoys hanging out in the backyard, chewing on sticks or rubber toys. She's fully housetrained, zero accidents.   Things we're working on with Danny: She can be fearful in some situations, like meeting new people and getting into the car. We think she's still adjusting to losing her previous human who sadly passed away. She won't do indoor stairs, which means she stays on the main floor - although it's not a problem, just a little sad that she sleeps by herself at night She can be growly and wary with new people in the house.  Slow introductions are required She is afraid to get into the car and unfortunately, improvement has been slow due to the car being parked on the street which is not helping her get over her fear. She's not good with cats, wants to chase them May 28, 2023, 11:09 am
Photo of Daisy

Daisy

Mastiff Shepherd (Unknown Type)

Female, 9 yrs
Mississauga, ON
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Needs experienced adopter, Spayed or Neutered,
Story
Daisy / F / 9Y / 70 lbs / Mastiff Shepherd Mix / Needs Structure / Needs to be the Only Pet / No Kids Please / Loyal & Smart / No Apartments / Local Surrender / Fostered in Mississauga / Instagram: @daishund Meet Daisy! Daisy is described as a sweet and gentle girl who despite her size, is a total sweetheart. She is loyal, eager to please, and more than ready for the right family to bring out her full potential. Although Daisy has not always had the community of people currently advocating for her success, we are confident that with the right leadership her true nature will shine through. Daisy’s foster describes her as loyal and hilariously vocal when she greets people she trusts. Generally she is calm and gentle, and loves to be close to her people and will follow them around the house. Her playful side comes out in bursts, and she loves to dart around the backyard. Daisy also enjoys playing fetch in the hallway and loves to tease you with her favourite squeaking toy, then run away and expect you to chase her. Daisy enjoys the snow and loves to run and jump in the backyard after a big snowfall. Daisy is insecure and will need ongoing support from her forever family. In her amazing foster home, she has done well and made great progress in the right direction. She will require more time than your average dog to decompress in a new environment and begin to trust her new family. Once she is comfortable, training can start to build her confidence and socialization. She is truly a people pleaser, and very sensitive, so only positive reinforcement based training will be permissible for her success. Daisy is medium energy and requires routine in her day. She would do best in a home that can provide her with smaller walks throughout the day, as well as time in the backyard to use the washroom. Daisy is reactive on leash, so she will require a strong and calm leader. When she sees other dogs, she pulls and barks and therefore will require an adopter who is committed to redirecting her attention with treats or a toy when she sees other dogs on walks. She is muzzle trained, and it is advised this continues in her forever home. New environments and situations are very stressful for Daisy, including walks. She is best walked for shorter periods, in areas where she will have less exposure to triggers, such as other dogs. This training will be ongoing, and will require time and patience to help her overcome her insecurities. In her current foster home, Daisy enjoys going for mid-afternoon/late night walks daily and occasionally visits an isolated parking lot. She is also getting used to wearing a calming cap, which has been helpful in reducing her vision and redirecting her when potential triggers are spotted. She is far more relaxed and happy when she gets a good amount of physical activity and outings. True to her breed, she is smart and eager to please. Daisy knows basic commands such as sit, lie down, stay, away, paw, touch, and sniff. Continuing her obedience and trick training will be an important part of confidence building over time. Daisy is house trained and can be trusted with free reign when left alone. She is not crate trained but chills out in her dog bed or on her favorite part of the couch. When you come home she may bark out of excitement to greet you but settles quickly as long as unbalanced energy is not rewarded. She has not been left alone much, but has shown signs of separation anxiety when she is left alone by whining or crying. Her forever family should be prepared to deal with this as part of her ongoing training. Daisy’s ideal family will live in a detached, low traffic home as too many visitors in the beginning could potentially hinder her success. Daisy’s forever home should have a backyard without too many other dogs nearby. Daisy is looking for a home without children or other pets. Daisy's adoptive family will have large dog experience and live in a low traffic area like the suburbs. Daisy need to remain at least 25 meters from other dogs for Daisy's safety, and the safety of other dogs. Due to this, Daisy is not suitable for condo or apartment living. If you’re interested in adopting Daisy, please apply at https://www.fetchandreleash.ca/adoption-info#adoption-form Daisy's adoption fee is $350 and will be donated towards sessions with a Fetch + Releash approved trainer. To learn more about our adoption fees and the foster-to-adopt process, please visit our FAQs at https://www.fetchandreleash.ca/about-us#about-faqs.
Photo of Tiger

Tiger

Mastiff

Male, 3 yrs 1 mo
King City, ON
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Spayed or Neutered,
Story
-
Photo of Hank

Hank

Mastiff

Male, young
Erin, ON
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Spayed or Neutered,
Story
Lovable - funny character - experience with large breed dogs Loyal - Playful - crate trained - knows basic commands loves building relationships Weight: 135lbs Gender: male intake: October 26th/22Good with cats: no- has never been round cats Good with dogs- Once he has a proper introduction he seems good with them- he is very reactive to new dogs. He needs socializing with dogs- training Good with kids: staff do not recommend hank with small children because he is big and can get carried away with his play. It can be difficult to calm him down while he plays. Good with strangers: Yes! Guarding issues: None seen at shelter behavior issues: reactive to other dogs- doesn't like to be pulled off the couch by his collar- please redirect him off the couch with commands, works well with him. Needs structure and routine. He is very use to the shelter life and will need time adjusting to a home life. House broken: Yes Drives well in the car: Yes Okay with manipulations: Yes good at the vet destructive: only with his stuffed toys medical issues: No Hank will need a fully fenced in yard. Leash training: He walks well- needs to be corrected when there are distractions- He can be strong on leash More about Hank: Hank is a lovable boy who is very friendly and loves to play and interact with you. He enjoys playing tug of war with you or chasing after a large ball, and will invite you to play with him. Doing this is an excellent way to get his energy out, it's interactive with you, and will be much better to work with him when he is ready! Hank will need training walking on leash and being properly introduced with other dogs. He will need to be taught manners and boundaries in the house as well. Once is he settled in he will start to get this groove with you and is just the biggest sweetheart.
Photo of Melman

Melman

Mastiff Labrador Retriever

Male, adult
Keswick, ON
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
-
Story
Melman, pet id# 29439, arrived at the Shelter as a stray March 27/23 from Lambert Wilson Park in Aurora. If this is your missing pet please call 1-800-898-8606. Melman is an adventurous and goofy guy that is still trying to understand his size. He continues to improve with his obedience training; he’s very excited to be a good boy! Melman loves to play and go for walks but his favourite thing is snuggle time. He just adores resting his big head on your chest and leaning in for some head scratches. Melman will require a family committed to providing continued training and slow introductions to new things.  Melman is currently living in a foster home and these are the latest updates they have shared; - We still haven’t formally met / played with another dog, but we went on a pack walk with my sisters dog and it went really well. Slow and steady introductions, but we saw no signs of aggression - Melman met two kids: one 3 year old and one 6 month old, and was the gentlest and sweetest boy you ever saw. He just wanted to be close to the kids and sat next to them like an angel waiting for pets. It’s only one visit but I think safe to say he’s good with kids!  - he sleeps soundly in his crate at night, and 0 accidents in the home / no destruction  Please keep in mind that adoption availability varies per animal and our first priority is to find the original owners, returning the pet home. Once available, the adoption the fee is $250.00 plus HST and will include Rabies vaccination, spay/neuter, deworming, microchip implantation and registration.May 25, 2023, 3:49 pm
Photo of Minnie

Minnie

Mastiff

Female, young
St. Catharines, ON
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Spayed or Neutered,
Story
Minnie - Female Mastiff mix - 4 years old?ID #: A51258661Minnie has zero leash manners (she walks you more that you walking her!). This will need to be addressed by her new adopters as she has high prey drive when she sees small animals. Training will be a must for this gal. She's not a big fan of other dogs either. She wants to be the only animal in the home so she can soak up all your attention for herself. The key for Minnie to get comfortable in her new home is to just go slow and give her time to settle in and build trust with you. Minnie will need a home with a fenced yard, and adopters who will provide her with routine and structure (and of course lots of cuddles once she feels settled and secure into your home).

Search for a Mastiff puppy or dog

Use the search tool below to browse adoptable Mastiff puppies and adult Mastiff in Toronto, Ontario.

Mastiff puppies and dogs in nearby cities

Related breeds in Toronto, Ontario

Mastiff shelters & rescues in Toronto, Ontario

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

Here are a few organizations closest to you:

Rescue

2.8 miles

Speaking of Dogs Rescue

Toronto, ON M9W 3L8

Pet Types: dogs

More an arrow icon

Rescue

6.2 miles

Last Minute Luckies

Toronto, ON M6G 1C5

Pet Types: cats, dogs

More an arrow icon

Rescue

13.1 miles

Fetch + Releash Dog Rescue

Mississauga, ON L5M 1Y3

Pet Types: dogs

More an arrow icon

Rescue

15.5 miles

Dog Tales Rescue and Sanctuary

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

Pet Types: cats, dogs

More an arrow icon

Shelter

26.8 miles

Upper Credit Humane Society

5383 Trafalgar Rd N, Erin, ON N0B 1T0

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

More an arrow icon

Shelter

36.7 miles

Georgina Animal Shelter and Adoption Centre

26815 Civic Centre Road, Keswick, ON L4P 3G1

Pet Types: cats, dogs

More an arrow icon

Shelter

40.3 miles

Lincoln County Humane Society

160 Fourth Ave., St. Catharines, ON L2R 6P9

Pet Types: cats, dogs

More an arrow icon

Rescue

49 miles

Inugoya Rehoming and Rehabilitation

Niagara Falls, ON L2G 5P1

Pet Types: 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!

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

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