Mastiff Adoption in Monmouth, OR: Mastiff Puppies for Sale in Monmouth, OR

Adopt a Mastiff near you in Monmouth, Oregon

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 Monmouth, Oregon

These Mastiffs are available for adoption close to Monmouth, Oregon.

Finn AKA Gage JuM

Mastiff Shepherd (Unknown Type)

Male, 7 yrs 2 mos

Salem, OR

Size

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

Details

Good with dogs, Spayed or Neutered,

Story

Finn may look like a rockstar with his striking Mastiff–Shepherd good looks, but at heart, he’s a big, soft lovebug. Weighing in at about 60 pounds, Finn has grown into a handsome boy with a beautiful gray and tan coat, soulful eyes, and an even bigger personality. Despite his star-quality appearance, Finn is more of a laid-back, easygoing guy—think Eeyore vibes, but with engines revved and ready to love. From the moment he wakes up, he’s prepared to shower his people with affection… and trust us, it’s A LOT of love! Finn does well with other dogs and does need a slow, proper introductions to new friends—both two-legged and four-legged. Once he knows you, he loves you deeply. He’s happiest when he has a buddy (human or canine) to share his world with. Affection is Finn’s specialty. When someone comes to greet him, he lights up, runs over with enthusiasm, and hands out slobbery kisses and big hugs like they’re backstage passes. His joy is genuine, his heart is huge, and he’s always thrilled to see his people. If you’re looking for a big, lovable, slightly goofy rockstar who will adore you endlessly, Finn is ready to take center stage in your heart. Local adoption only $200 (in TX)

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Luke AG

Mastiff American Pit Bull Terrier

Male, 4 yrs 3 mos

Salem, OR

Size

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

Details

Good with kids, Good with dogs, Not good with cats, Spayed or Neutered,

Story

Hi, I’m Luke, and I’m a big, lovable boy tipping the scales at just over 100 lbs! Don’t let my size fool you—I’m a happy, easygoing pup who just wants to play, explore, and cuddle. I’m all about the good things in life: squeaky toys, water play, long walks, and best of all—snuggle time on the couch. I’m a pro at giving hugs (though I’m working on not jumping up too hard to give them—oops!). I get along great with other dogs and kids, but because of my size and enthusiasm, I’d do best with older children who won’t get accidentally knocked over during playtime. I’m crate trained, housebroken, and walk nicely on a leash—unless there’s a squirrel… then it’s game on! I do have a slight prey drive, so a little guidance goes a long way. If you’re looking for a big-hearted, playful companion to fill your home with love (and maybe take up some space on your couch), I’m your guy. Let’s make forever happen! 🐾 Local adoption fee is $200(in TX) Out of state adoption fee is $450 (includes transport to your area)

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Chuckles

Mastiff Mixed Breed (Medium)

Male, 4 yrs 2 mos

Salem, OR

Size

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

Details

Good with kids, Good with dogs, Good with cats, Spayed or Neutered,

Story

Howdy there, I’m Chuckles. I’m a 4 year old, 80 lb. Mastiff mix with a big heart, a bigger frame, and a personality that just needs a minute to shine. I can be a little nervous when I first meet new people or find myself in new situations. I like to take things in slowly at first, make sure everything feels safe, and confirm you are not secretly a broom or a suspicious moving object. Once I realize you are kind and safe, I come out of my shell pretty quickly, especially if you have treats. Snacks are basically my love language. A few good treats and suddenly I am your best friend, emotional support giant, and personal shadow all rolled into one. I am a very sweet boy who loves affection from my people. I enjoy leaning in for pets, hanging out close by, and being part of whatever is going on. I may be large, but I have a very soft heart and I am happiest when I am near my humans. I also enjoy going on walks and adventures, taking in the world at a steady, thoughtful pace while I sniff everything that might possibly be important. I do well with other dogs and enjoy their company. As for cats, I have lived with a cat before and did well. I would do best with kids over the age of 6 who understand that I may need a little space when I am first adjusting or feeling unsure. Once I settle in, I am affectionate, goofy, and deeply loyal, but I appreciate people who let me warm up at my own pace. So if all of this sounds amazing to you, please come and meet me! My adoption fee is $295 and I'm neutered, vaccinated and microchipped. Apply to meet me today!

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Polo

Mastiff

Male, Adult

Salem, OR

Size

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

Details

Spayed or Neutered,

Story

What my friends at OHS say about me:I really enjoy the company of my human friends.Just like a bear, I am snuggly, cute, and love butt scratches.I'm a social guy! I've lived with small dogs and kids and love being a part of the action.I love to be the center of attention. All eyes and pets on me, please!Shy and Nervous: I can be worried about new people, new surroundings and touch. I prefer to take things at my own pace and will need to live in a calm environment.The type of home I'm looking for:It could be with you! Click here to learn about the adoption process.You can also stock up on food and treats using our online store by clicking here. Primary Color: Sable Secondary Color: Ticked Weight: 77 Age: 2yrs 1mths 1wks

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BRANDY

Mastiff German Shepherd Dog

Female, 8 yrs 5 mos

Tangent, OR

Size

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

Details

Story

Adoption Fee $100Weight 76.2LBSArrival Date:4/28/26Microchip # 982126050999398Meet Brandy — Your Oversized Snuggle Buddy! Hi friends! I’m Brandy — a big squishy sweetheart with an even BIGGER heart, and I’m searching for my forever family! If you’ve got room on your couch (and in your heart), I just know we could be besties.My absolute favorite thing in the world? Being with my people! I love attention, cuddles, goofy hangouts, and soaking up all the love I can get. Because I like being the queen of the castle, I’d do best as your one-and-only pet. More treats, more belly rubs, more LOVE for me? Yes please! Here are a few fun facts about yours truly:I`m basically an Olympic-level fence jumper, so I`ll need a secure yard and humans who can keep an eye on my adventures!I`m also a doggy day star! I love spending time with my favorite people and showing off my sweet, silly personality wherever I go. I`d be happiest in a calm, adult-only home where I can fully relax, feel safe, and shine. I take mealtime very seriously — a girl likes to enjoy her snacks in peace! Nail trims? Ummm... hard pass. We all have our quirks, okay?What I do promise is endless love, a hilarious personality, loyal companionship, and enough cuddles to fill your heart forever. I`m a big girl with big feelings and even bigger love to give. So... what do you say? Come meet me and let`s start our happily ever after!

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Dusty

Mastiff

Male, Adult

McMinnville, OR

Size

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

Details

Good with kids, Good with dogs, Not good with cats, House-trained, Spayed or Neutered, Shots are up-to-date,

Story

You can fill out an adoption application online on our official website.Visit this organization's web site to see any additional information available about this pet.March 11, 2026, 12:11 am

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Mastiff puppies and dogs in Monmouth, Oregon

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Adopt a Mastiff near you in Monmouth, Oregon

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 Monmouth, Oregon

These Mastiffs are available for adoption close to Monmouth, Oregon.

Search for a Mastiff puppy or dog

Mastiff puppies and dogs in nearby cities

Related breeds in Monmouth, Oregon

Mastiff shelters & rescues in Monmouth, Oregon

Looking for a specific shelter or rescue?

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

Mastiff basics

Mastiff basics