Mastiff Adoption in Washington: Mastiff Puppies for Sale in Washington

Adopt a Mastiff near you in Washington

Below are our newest added Mastiffs available for adoption in Washington. To see more adoptable Mastiffs in Washington, use the search tool below to enter specific criteria!

Latheo

Mastiff

Male, Adult

Vancouver, WA

Size

(when grown) X-Large 101 lbs (46 kg) or more

Details

Story

Here's what you need to know about me:I'm easy going. Wanna go for a walk? Okay. Hang out in the yard? No problem. Just relax on the couch? I can do that. I'm pretty happy to go at your pace and I don't really need much more than most dogs do. If you're looking for a steady companion, I'm all yours.It's recommended I meet any dogs or kids living in my new home before I'm adopted. I just want to make sure we all get along.I need a home without cats. We just don't get along - even if they don't mind me, I can't be in the same home with them. Primary Color: Tan Weight: 110 Age: 5yrs 8mths 0wks

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Tucker

Mastiff

Male, Senior

Spokane, WA

Size

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

Details

Good with kids, Good with dogs, Not good with cats, House-trained,

Story

My parents got tucker from my neighbors when he was a puppy and they were not good dog owners so i ended up taking him in but i cannot have him where im currently living and dont have anyone who can help out. hes starting to have hip issues but other than that hes perfectly healthy he doesn’t like being trapped in one room and likes to roam around and follow you around the house, which he currently isn’t able to do. he also does good outside to a degree but primarily has been an inside dog most of his life

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ENOKI

Mastiff

Male, 1 yr

Kent, WA

Size

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

Details

Story

Hi! My name is Enoki and I am available for adoption.I am a sweet and gentle boy who is looking for my forever home!I was brought in by a good Samaritan on 12/28/25 with my 4 other siblings. 3 Have been adopted and I am the last on here, patiently waiting my turn!I am a gentle and loving dog who likes to take things slow. Before arriving at RASKC me and my siblings had never walked on a leash! But I am practicing and getting better everyday!I just want to sit with someone and have them love me. If you take me home I will cuddle up with you everyday! You can win me over very quickly because I am actually very trusting! Stranger or not I will love you forever!My caregivers have noticed that I do well with other large dogs. I am vey submissive so I will lay down and allow the new dog to meet me slowly! When meeting dogs in a new home, I would do best with a slow introduction.I am a full grown large breed dog! Ask my caregivers about me! They will only tell you good things:)

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Chance

Mastiff/American Pit Bull Terrier

Male, 6 yrs

Yakima, WA

Size

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

Details

Story

Meet Chance!Chance came to our adoption center with a limp, but he’s recovering well and feeling better every day. He’s a mature, sweet boy with an easygoing personality—truly a “go with the flow” kind of dog. Chance walks nicely on leash, loves treats, and is happy just hanging out with his people.He’s done great spending time in the manager’s office, showing us that he’s calm, well-mannered, and comfortable relaxing in a quiet space. Chance is what we’d call a pretty casual dude.One thing that really tugs at our hearts—Chance doesn’t seem to know about the finer things in life yet, like cozy dog beds or soft blankets. It’s clear he hasn’t had many comforts before, and we would love nothing more than to see him go to a home that can show him just how amazing life can be.Chance is ready for a loving home, a comfy bed, and someone who will give him the care and kindness he’s been missing. Could that be you?This pet is available for adoption on 12/19/25 at the Yakima Humane Society adoption center. If you recognize this animal please contact the adoption center at 509-457-6854.Did you know YHS offers a `Play Date` program?Whether you are interested in adopting or just want to hang out with a furry friend, it`s a fun way to spend an hour, an afternoon or even a couple days. Stop by the front desk or call in and ask how to have your Play Date today.Ready to adopt? Great news—our spayed/neutered pets are available to go home the same day! You can visit us in person, give us a call, or apply online—whatever works best for you. Your adoption fee includes: A lovable new companion, spay/neuter surgery, vaccinations + deworming, flea/tick treatment, rabies vaccine (for pets 3–4 months and older), and microchip with nationwide registration.For online adoptions please fill out our quick adoption questionnaire here: https://yakimahumane.org/adopt/apply/Questions? We’d love to hear from you! Email us at adoption@yakimahumane.org, call us, or just stop by.Let’s help you meet your new best friend!

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Georgia

Mastiff/Boxer

Female, 7 mos

Tacoma, WA

Size

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

Details

Good with kids, Good with dogs, House-trained,

Story

If you're interested in fostering or adopting, please fill out the application on our website. If she finds a WA foster and forever home, she will be on the next transport to WA

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Fred

Mastiff/Boxer

Male, 7 mos

Tacoma, WA

Size

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

Details

Good with kids, Good with dogs, House-trained,

Story

If you're interested in fostering or adopting, please fill out the application on our website. If he finds a WA foster and forever home, he will be on the next transport to WA

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

Mastiff puppies and dogs in Washington

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Below are our newest added Mastiffs available for adoption in Washington. To see more adoptable Mastiffs in Washington, use the search tool below to enter specific criteria!

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Mastiff puppies and dogs in Washington

Jump to:

Adopt a Mastiff near you in Washington

Below are our newest added Mastiffs available for adoption in Washington. To see more adoptable Mastiffs in Washington, use the search tool below to enter specific criteria!

Search for a Mastiff puppy or dog

Mastiff puppies and dogs in Washington cities

Mastiff shelters & rescues in Washington

Looking for a specific shelter or rescue?

Want to learn more about adopting a Mastiff puppy or dog ?

Mastiff information

Mastiff basics