Senior confirmed
Proteus
Hi, I'm Proteus!90#MY ADOPTION FEE HAS BEEN SPONSORED!I am a gentle soul, looking for a safe place to call my own. I've only had one other home before…
Fort Wayne Animal Care and Control • Fort Wayne, IN
Senior Mastiff dogs in Indiana
Senior Mastiff dogs for adoption in Indiana
Meet 1 adoptable senior Mastiff dog (age 7+) in Indiana. Each one is from a shelter or rescue and ready for a calm, loving home.
Older Mastiffs in Indiana 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 Indiana means welcoming a calm, grateful companion who can settle in from day one. Adopters browsing senior Mastiffs in Indiana are often also looking at Mixed Breed and Labrador Retriever listed here. Senior Mastiffs are also listed in 13 other states if you can travel for the right match.
Last updated November 7, 2026 at 7:45 AM EST. Listings refresh throughout the day. Always confirm a dog’s availability with the shelter or rescue before making plans.
Available senior Mastiff dogs in Indiana
1 senior Mastiff dog available in Indiana.
Senior Mastiff dogs in other states
Other senior dogs in Indiana by breed
Senior dogs in Indiana by city
Adopting a senior Mastiff in Indiana — 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 Indiana?
Open any dog's profile to see the shelter or rescue caring for them in Indiana, 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 Indiana?
Availability changes often as dogs are adopted and new ones are listed. If you don't see a senior Mastiff in Indiana right now, check back soon or browse nearby states — new dogs are added regularly.
Can I adopt a senior Mastiff from Indiana if I live elsewhere?
Often, yes. Many rescues and shelters in Indiana 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.
Guides to help you decide
Getting started
Why Adopt a Senior Dog? 7 Reasons Older Dogs Make Wonderful Companions
Senior dogs are often calm, house-trained, and overlooked at shelters. Here are seven honest reasons an older dog may be the best companion you ever bring home.
6 min readUnderstanding ageHow Old Is a "Senior" Dog? Senior Age by Breed and Size
A dog is not "old" at the same age across the board — size and breed change everything. Here is how to tell when a dog becomes a senior, and what it means for care.
5 min readCare & healthCaring for a Senior Dog: Health, Diet, and Everyday Comfort
How to keep an older dog healthy and comfortable — vet care, senior-appropriate diet, joint and dental health, exercise, and simple home adjustments that make a big difference.
8 min readKnow a senior Mastiff in Indiana who needs a home?
Shelters and rescues can list adoptable senior dogs for free.