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Mastiff puppies and dogs in Prosser, Washington

Looking for a Mastiff puppy or dog in Prosser, Washington? Adopt a Pet can help you find an adorable Mastiff near you.

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Adopt a Mastiff near you Mastiff in cities near Prosser, Washington Other pups in Prosser, Washington Search for a Mastiff puppy or dog near you Browse Mastiff puppies and dogs in nearby cities Browse related breeds in Prosser, Washington Mastiff shelters and rescues in Prosser, Washington Learn more about adopting a Mastiff puppy or dog

Adopt a Mastiff near you in Prosser, Washington

We don't see any Mastiffs available for adoption right now, but new adoptable pets are added every day. Try a different search below!

Or, how about these Mastiffs in cities near Prosser, Washington

These Mastiffs are available for adoption close to Prosser, Washington.
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Salem

American Staffordshire Terrier English Mastiff

Female, Adult
West Richland, WA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with dogs, Spayed or Neutered,
Story
Born November 19, 2020, Salem is a female American Staffordshire Terrier/Mastiff mix seeking a forever home. She is good with other dogs and very well socialized with people. Salem's best fit home would be one with breed experience and committed to training her so that she receives a canine good citizen certification. A home with another canine companion (s) would be ideal as this breed requires continued socialization with other dogs. We do require a home with adult or adults and children over 5. Home ownership and fully fenced yard is required as well. Applications can be accessed at www.mikeyschance.com

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Photo of Aphrodite

Aphrodite

Labrador Retriever Mastiff

Female, 3 yrs
Yakima, WA
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
-
Story
Meet Aphrodite, a three-year-old Lab/Mastiff mix weighing 98 pounds. Aphrodite may be a BIG girl, but underneath all that fluff and size is a big baby who just wants to feel safe and loved! Found as a stray, this beautiful girl is still figuring things out and could use a little extra TLC to help her blossom.Her breed mix is a bit of a mystery, but we wouldn`t be surprised if she had some German Shepherd and livestock guardian breeds in her family tree! Whatever her mix may be, Aphrodite is one impressive lady with a whole lot of love waiting to shine through.Aphrodite is sweet and very human-oriented, but she can be a little shy and unsure at first. She`ll need a patient, understanding family who can give her the time, reassurance, and gentle encouragement she needs to build confidence and settle into her new life.If you have a soft spot for big dogs with even bigger hearts, Aphrodite might just be your girl! With a little patience and a lot of love, this gentle giant has the potential to become a wonderful companion.Come meet Aphrodite and help this big baby discover just how good life can be!This pet is available for adoption on 10/24/2026 4:45 PM 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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Photo of Athena

Athena

Labrador Retriever Mastiff

Female, 3 yrs
Yakima, WA
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
-
Story
Meet Athena, a three-year-old Lab/Mastiff mix weighing 111 pounds. Athena is a BIG girl with a curious mind and a love for exploring the world around her! Her breed mix is a bit of a mystery, but we wouldn`t be surprised if she had some German Shepherd and livestock guardian breeds in her family tree. Whatever her mix may be, this beautiful girl certainly has a presence!Athena is a friendly, confident, and independent lady who enjoys getting out on leash and investigating everything around her. New sights, interesting smells, and unfamiliar surroundings are all opportunities for her to put her curious nose to work! She enjoys exploring at her own pace and taking in all the world has to offer.As a big girl with an independent streak, Athena would love a home that appreciates her adventurous nature and gives her plenty of opportunities to explore. She`s a wonderful companion for someone who enjoys getting outside and letting their dog experience new things.If you`re looking for a big, beautiful girl with confidence, curiosity, and plenty of personality, Athena might just be your perfect match! Come meet this lovely lady and see where your adventures together might lead.This pet is available for adoption on 10/24/2026 4:45 PM 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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Photo of Laverne

Laverne

Boxer Mastiff

Female, 6 yrs 2 mos
Yakima, WA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
-
Story
Meet Laverne, a six year old Boxer/Mastiff mix weighing 70 pounds.Laverne is a sweet, gentle soul with the most adorable droopy ears and a heart full of love. She was found running loose with another dog and is now hoping to find the forever family she deserves.Laverne can be a little shy when meeting new people, but it doesn`t take long to see her loving personality shine through. She`s very people-oriented and wants to be close to her humans. A kind word, a gentle touch, and a little reassurance go a long way with this lovely girl. She wants to please and is happiest when she has someone she trusts to help her navigate the world.Laverne would do best with a confident, patient adopter who can take the lead, provide gentle guidance, and show her the way as she continues to build confidence. She may also do best in a home without young children while she settles in and learns to feel secure. With consistency, encouragement, and positive reinforcement, we believe she`ll continue to blossom into a trusting and devoted companion.Watching Laverne gain confidence and discover how wonderful life can be will be such a rewarding experience. She has so much love to give and is looking for someone who will help her feel safe, supported, and understood.If you`re looking for a loyal best friend with precious droopy ears and a gentle heart, Laverne may be your girl. Come meet her and see what a little patience and love can do!This pet is available for adoption on 7/28/2026 4:56 PM 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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Looking for a specific shelter or rescue?

There are often many great Mastiffs for adoption at local animal shelters or rescues. Click below to find a shelter or rescue in your area!

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

We've got all the info you need on adopting and caring for a Mastiff puppy. Check out the links below for everything you ever wanted to know about Mastiff puppies and adults.

Mastiff basics

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Where do Mastiffs come from? How many types of Mastiffs are there? From the history of the breed to question about average height, weight and size, brush up on these basic facts about the Mastiff.

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