Senior confirmed
Fiona (foster needed)
Fiona (foster needed) is a senior female Boerboel Mastiff, X-Large, located in Vail, AZ with The Big Mutt Network. Senior dogs make wonderful companio…
The Big Mutt Network • Vail, AZ
Senior Boerboel Mastiff dogs in Arizona
Senior Boerboel Mastiff dogs for adoption in Arizona
Meet 1 adoptable senior Boerboel Mastiff dog (age 7+) in Arizona. Each one is from a shelter or rescue and ready for a calm, loving home.
Older Boerboel Mastiffs in Arizona are often passed over for puppies, yet they're usually house-trained, settled in temperament, and ready to bond right away — and because they're fully grown, you already know their size and personality. Adopting a senior Boerboel Mastiff in Arizona means welcoming a calm, grateful companion who can settle in from day one.
Last updated July 12, 2026 at 9:30 AM EDT. Listings refresh automatically, usually every 12 hours.
Other senior dogs in Arizona by breed
Adopting a senior Boerboel Mastiff in Arizona — FAQ
What counts as a senior dog?
Most shelters and vets consider a dog "senior" around age 7, though large breeds often age sooner and small breeds a little later. Every dog listed here is 7 years or older.
How do I adopt a senior Boerboel Mastiff in Arizona?
Open any dog's profile to see the shelter or rescue caring for them in Arizona, then use the adoption link or contact details to apply directly with that organization. Lily's Second Chance simply gathers senior Boerboel Mastiffs in one place so they're easier to find.
Are there always senior Boerboel Mastiff dogs available in Arizona?
Availability changes often as dogs are adopted and new ones are listed. If you don't see a senior Boerboel Mastiff in Arizona right now, check back soon or browse nearby states — new dogs are added regularly.
Can I adopt a senior Boerboel Mastiff from Arizona if I live elsewhere?
Often, yes. Many rescues and shelters in Arizona arrange or help coordinate transport for the right adopter, while others prefer a local meet-and-greet first. Open a dog's profile and ask the organization directly how their out-of-area adoption process works.
Know a senior Boerboel Mastiff in Arizona who needs a home?
Shelters and rescues can list adoptable senior dogs for free.