10+ years
NATE
NATE is a large male Mastiff listed as a senior at Prince Georges County Animal Management Division in Forestville, MD. Senior dogs make wonderful com…
Prince Georges County Animal Management Division • Forestville, MD
Senior Mastiff dogs in Maryland
Senior Mastiff dogs for adoption in Maryland
Meet 2 adoptable senior Mastiff dogs (age 7+) in Maryland. Each one is from a shelter or rescue and ready for a calm, loving home.
Older Mastiffs in Maryland 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 Mastiff in Maryland 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.
Senior confirmed
ROSCOE
Roscoe (A567045) is a 7-year-old senior with the sweetest, most gentle soul. He has a calm, quiet demeanor and seems very well-mannered. As soon as we…
Prince Georges County Animal Management Division • Forestville, MD
Senior Mastiff dogs in other states
Other senior dogs in Maryland by breed
Adopting a senior Mastiff in Maryland — 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 Mastiff in Maryland?
Open any dog's profile to see the shelter or rescue caring for them in Maryland, then use the adoption link or contact details to apply directly with that organization. Lily's Second Chance simply gathers senior Mastiffs in one place so they're easier to find.
Are there always senior Mastiff dogs available in Maryland?
Availability changes often as dogs are adopted and new ones are listed. If you don't see a senior Mastiff in Maryland right now, check back soon or browse nearby states — new dogs are added regularly.
Can I adopt a senior Mastiff from Maryland if I live elsewhere?
Often, yes. Many rescues and shelters in Maryland 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 Mastiff in Maryland who needs a home?
Shelters and rescues can list adoptable senior dogs for free.