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Mastiff puppies and dogs in Union Gap, Washington

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

Adopt a Mastiff near you in Union Gap, Washington

These Mastiffs are available in Union Gap, Washington.
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Photo of Melvin

Melvin

Mastiff

Male, 5 mos
Yakima, WA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
-
Story
Meet Melvin, a five-month-old Mastiff mix weighing 41 pounds. Melvin is one big puppy with an even bigger future ahead of him! This handsome boy is still growing and has plenty of puppyhood left to enjoy. With his gorgeous brindle coat and striking mismatched eyes, Melvin is definitely a pup who turns heads wherever he goes.We suspect Melvin may be quite the mix of many different breeds, and while we can’t say exactly what’s in his family tree, one thing is fairly certain: this boy is going to be a big guy! His forever family should be prepared for a large, goofy, growing pup with lots of love and learning ahead of him.Melvin was found abandoned in a park, but he hasn’t let that rough start dampen his puppy spirit. He’s ready to leave his past behind and start the next chapter with a family who will give him the patience, guidance, training, and love every growing puppy deserves.If you’re ready for a big brindle pup with unforgettable eyes and a whole lot of growing, learning, and loving to do, Melvin is waiting to meet you! This pet is available for adoption on 9/6/2026 4:29 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
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`s always deserved.While Laverne may be a little shy when meeting new people, it doesn`t take long to see her loving personality shine through. She`s incredibly human-oriented and just wants to be close to her people. A kind word, a gentle touch, and a little reassurance go a long way with this lovely girl. She truly wants to please and is happiest when she knows she`s made you smile.Laverne would do best with a family that understands she may need a little time to settle into a new home. With patience, encouragement, and positive reinforcement, her confidence will continue to grow. Watching her come out of her shell and blossom into a trusting companion will be a rewarding experience.If you`re looking for a loyal best friend who will cherish your love and companionship, Laverne may be the perfect match. Come meet this sweet girl and let those precious droopy ears—and her gentle heart—win you over.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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Or, how about these Mastiffs in cities near Union Gap, Washington

These Mastiffs are available for adoption close to Union Gap, Washington.
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Photo of Melvin

Melvin

Mastiff

Male, 5 mos
Yakima, WA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
-
Story
Meet Melvin, a five-month-old Mastiff mix weighing 41 pounds. Melvin is one big puppy with an even bigger future ahead of him! This handsome boy is still growing and has plenty of puppyhood left to enjoy. With his gorgeous brindle coat and striking mismatched eyes, Melvin is definitely a pup who turns heads wherever he goes.We suspect Melvin may be quite the mix of many different breeds, and while we can’t say exactly what’s in his family tree, one thing is fairly certain: this boy is going to be a big guy! His forever family should be prepared for a large, goofy, growing pup with lots of love and learning ahead of him.Melvin was found abandoned in a park, but he hasn’t let that rough start dampen his puppy spirit. He’s ready to leave his past behind and start the next chapter with a family who will give him the patience, guidance, training, and love every growing puppy deserves.If you’re ready for a big brindle pup with unforgettable eyes and a whole lot of growing, learning, and loving to do, Melvin is waiting to meet you! This pet is available for adoption on 9/6/2026 4:29 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!

Learn More

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Photo of Laverne

Laverne

Boxer Mastiff

Female, 6 yrs
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`s always deserved.While Laverne may be a little shy when meeting new people, it doesn`t take long to see her loving personality shine through. She`s incredibly human-oriented and just wants to be close to her people. A kind word, a gentle touch, and a little reassurance go a long way with this lovely girl. She truly wants to please and is happiest when she knows she`s made you smile.Laverne would do best with a family that understands she may need a little time to settle into a new home. With patience, encouragement, and positive reinforcement, her confidence will continue to grow. Watching her come out of her shell and blossom into a trusting companion will be a rewarding experience.If you`re looking for a loyal best friend who will cherish your love and companionship, Laverne may be the perfect match. Come meet this sweet girl and let those precious droopy ears—and her gentle heart—win you over.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!

Learn More

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

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Mastiff puppies and dogs in nearby cities

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Related breeds in Union Gap, Washington

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Mastiff shelters & rescues in Union Gap, Washington

There are animal shelters and rescues that focus specifically on finding great homes for Mastiff puppies in Union Gap, Washington. Browse these Mastiff rescues and shelters below.

Here are a few organizations closest to you:

Shelter

10 miles

Yakima Humane Society

2405 West Birchfield Road, Yakima, WA 98901

Pet Types: cats, dogs

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If you're not seeing what you're looking for, try our shelter and rescue search. We have more than 17,000 organizations in our database with furry pals waiting for a new home!

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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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