Mastiff Puppies and Dogs in Ontario

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!

Bonnie

Mastiff

Female, Adult

Everett, ON

Size

(when grown) Large 61-100 lbs (28-45 kg)

Details

Story

Learn More

Cylde

Mastiff

Male, Adult

Everett, ON

Size

(when grown) Large 61-100 lbs (28-45 kg)

Details

Story

Learn More

Marshall

Mastiff

Male, Puppy

Hamilton, ON

Size

(when grown) Small 25 lbs (11 kg) or less

Details

Story

Meet Marshall! This spunky little pup is full of energy and ready to play! He's always up for a game of tug and loves to run around in the yard. Marshall is looking for an active family who can keep up with him high spirits. When he's not bouncing around, Marshall loves nothing more than snuggling up to his human for some well-deserved belly rubs. Meet Marshall and bring home your new best friend today! If interested, please refer to regular adoption process application found on previous page, not orange box!

Learn More

Skye

Mastiff

Female, Puppy

Hamilton, ON

Size

(when grown) Small 25 lbs (11 kg) or less

Details

Story

Meet Skye! This little ball of energy is ready to take on the world with her playful spirit. Skye loves making new friends, whether they're human or furry, and will never pass up a chance to play a game of fetch. She may be young, but she's already mastered the art of the cute puppy eyes and irresistible tail wags. If you're looking for a fun-loving companion to join in on all your adventures, Skye is the pup for you! Fill out an online adoption application on the main page (NOT the orange tab).

Learn More

Zuma

Mastiff

Male, Puppy

Hamilton, ON

Size

(when grown) Small 25 lbs (11 kg) or less

Details

Story

Meet Zuma! This spunky little pup is full of energy and ready to play! He's always up for a game of tag and loves to run around in the yard. Zuma is looking for an active family who can keep up with him high spirits. When he's not bouncing around, Zuma loves nothing more than snuggling up to his human for some well-deserved belly rubs. Meet Marshall and bring home your new best friend today! If interested, please refer to regular adoption process application found on previous page, not orange box!

Learn More

Rubble

Mastiff

Male, Puppy

Hamilton, ON

Size

(when grown) Small 25 lbs (11 kg) or less

Details

Story

Meet Rubble! This little ball of energy is the epitome of puppy joy! He loves to play fetch, chase tails (his own included), and explore his surroundings. Rubble's tail never seems to stop wagging, which is just as well, for he's a people pup through-and-through. His ideal family would be one that loves to have fun and is looking for an energetic addition to the clan. Rubble's adoption fee is well worth the love, laughter, and sheer exuberance he'll bring into your life! Fill out an online application on the main adoption page (not the orange tab) to start the adoption process.

Learn More

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

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.

Jump to:

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!

Search for a Mastiff puppy or dog