Mastiff Dogs for Adoption in Arizona

36 adoptable Mastiff dogs from shelters and rescues in Arizona. Showing 31–36 of 36 below.

Every Mastiff here is a real dog currently listed for adoption by a shelter or rescue in Arizona. Listings are refreshed regularly, but availability changes fast — always confirm with the organization before making plans.

36 Mastiff dogs in Arizona — page 2 of 2

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Photo of Lu Lu, adoptable Mastiff in Mesa, Arizona

Lu Lu

Mastiff FemaleLarge4 years

Maricopa County Animal Care & Control - East Valley Animal Care Center • Mesa, AZ

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Photo of Bowser, adoptable Mastiff in Goodyear, Arizona

Bowser

Mastiff MaleX-Large1 year

Meet Bowser This sweet, handsome boy came to us all the way from Illinois after being abandoned in a basement with a cat, a rabbit, and a female dog n…

Canine Rescue Coalition • Goodyear, AZ

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Photo of Daisy #27, adoptable Mastiff in Chandler, Arizona

Daisy #27

Mastiff FemaleX-Large3 years

Please note this dog is NOT an official Underdog dog, and you will be connected with the person who has the dog. Please Contact (Current Owner of Dog)…

Underdog Rescue of Arizona, LLC • Chandler, AZ

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Photo of Rollie #2, adoptable Mastiff in Chandler, Arizona

Rollie #2

Mastiff MaleLarge3 years

Please note this dog is NOT an official Underdog dog, and you will be connected with the person who has the dog. Please Contact Wendy, 602-818-5541, I…

Underdog Rescue of Arizona, LLC • Chandler, AZ

Updated recently
Photo of Magnum, adoptable Mastiff in Chandler, Arizona

Magnum

Mastiff MaleLarge2 years

Please note this dog is NOT an official Underdog dog, and you will be connected with the person who has the dog. Please Contact (Current Owner of Dog)…

Underdog Rescue of Arizona, LLC • Chandler, AZ

Adopting a Mastiff in Arizona — FAQ

How do I adopt a Mastiff in Arizona?

Open any dog's profile to see which shelter or rescue is caring for them in Arizona, then follow the adoption link or contact details to apply directly with that organization. Every Dog's Chance gathers listings in one place so they're easier to find — the adoption itself happens through the local shelter or rescue.

Are Mastiff dogs a good fit for first-time adopters?

Many Mastiff dogs — especially adults who are already house-trained — can be a great match for first-time owners. Each dog's profile and the shelter or rescue caring for them can tell you about that individual dog's energy level, training history, and personality before you apply.

How much does it cost to adopt a Mastiff in Arizona?

Adoption fees vary by shelter and rescue in Arizona, but typically include spay/neuter, vaccinations, and a health check. Open any dog's profile and contact the organization directly for their current fee and what it covers.

Can I adopt a Mastiff from another city in Arizona?

Yes. Most shelters and rescues in Arizona welcome adopters from anywhere in the state, and some can arrange transport for the right match. Open a dog's profile to see the organization's contact details and ask them how their process works.

Can I foster a Mastiff in Arizona instead of adopting?

Many shelters and rescues in Arizona offer foster programs, sometimes with a foster-to-adopt path so you can see if the match feels right before committing. Ask the organization on any dog's profile whether fostering is available.

Are Mastiff dogs in Arizona good with children or other pets?

It depends on the individual dog more than the breed alone. The shelter or rescue caring for each dog can tell you about their history with kids, cats, and other dogs. Many organizations offer meet-and-greets to make sure the match is right for everyone before you commit.