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Bullmastiff puppies and dogs in Oceanside, California

Looking for a Bullmastiff puppy or dog in Oceanside, California? Adopt a Pet can help you find an adorable Bullmastiff near you.

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

Adopt a Bullmastiff near you in Oceanside, California

These Bullmastiffs are available in Oceanside, California.
We'll also keep you updated on Clifford's adoption status with email updates.
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Clifford

Bullmastiff

Male, Young
Oceanside, CA
Size
(when grown) -
Details
Spayed or Neutered,
Story
How this pet arrived: Clifford was brought in by a community member on January 30, 2026. Why this pet is the one for you:Meet Clifford (yes... he really is big). True to his name, Clifford is a big dog with a big heart-and sometimes big feelings too. This gentle giant can feel unsure around new people, especially men, so he needs humans who will proudly advocate for his space on walks and when visitors come over. Giving him time and calm introductions helps him feel safe. Clifford's size may be impressive, but his nature is soft and sensitive. He's best suited to a home with children aged 8 and up who can respect his boundaries. Clifford came to us as a stray, so his past is a bit of a mystery, but he's ready to grow something even bigger than himself: trust, confidence, and a home.Shy/Fearful Dog: This pet requires a virtual behavior consult, please watch THIS video to learn more about them. Primary Color: Red Weight: 134.4 Age: 1yrs 10mths 1wks

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Or, how about these Bullmastiffs in cities near Oceanside, California

These Bullmastiffs are available for adoption close to Oceanside, California.
We'll also keep you updated on Clifford's adoption status with email updates.
Photo of Clifford

Clifford

Bullmastiff

Male, Young
Oceanside, CA
Size
(when grown) -
Details
Spayed or Neutered,
Story
How this pet arrived: Clifford was brought in by a community member on January 30, 2026. Why this pet is the one for you:Meet Clifford (yes... he really is big). True to his name, Clifford is a big dog with a big heart-and sometimes big feelings too. This gentle giant can feel unsure around new people, especially men, so he needs humans who will proudly advocate for his space on walks and when visitors come over. Giving him time and calm introductions helps him feel safe. Clifford's size may be impressive, but his nature is soft and sensitive. He's best suited to a home with children aged 8 and up who can respect his boundaries. Clifford came to us as a stray, so his past is a bit of a mystery, but he's ready to grow something even bigger than himself: trust, confidence, and a home.Shy/Fearful Dog: This pet requires a virtual behavior consult, please watch THIS video to learn more about them. Primary Color: Red Weight: 134.4 Age: 1yrs 10mths 1wks

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We'll also keep you updated on Mocha's adoption status with email updates.
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Mocha

Bullmastiff American Bulldog

Female, Young
Lake Elsinore, CA
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, Needs experienced adopter, House-trained, Shots are up-to-date,
Story
Mocha is a sweetheart. She is 1 years old as of January 2026. Her breed is Pocket Bully / Bullmastiff mix and she has been our family dog since she was born. Mocha came from a litter of 6 pups which were all super healthy and cute. We are all she knows, however we are too busy with our work schedule and would like her to be rehomed with a good loving family or individual that has time to take good care of her and capable of spending more time with her daily. Mocha has all her shots, and is healthy full of good energy, she's a happy girl, not aggressive at all and loves, loves people. We are looking for someone with a yard so that Mocha can play around in during the day, in order to get some of good exercise. Mocha is very calm, and sweet, she will say "hi" to you, just wait for it. If you are looking to adopt a loving, sweet, quiet, obedient pup that listens she is perfect. Please contact owner for more information if you are interested.

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We'll also keep you updated on Hippo's adoption status with email updates.
Special Needs
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Hippo

Bullmastiff

Male, Adult
San Diego, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Needs special attention, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Age: 6 years old Gender: Male Breed: Bull Mastiff mix Weight: 84 lbs Personality: Very sweet and cuddly! He is very pleasant to walk if there are no other dogs in the area. He is learning to be more confident and less reactive. Education: Good with bathroom and leash training and is working on leash reactivity Favorite Activities: Tug of war, long night walks, hanging out in the kitchen Looking for: An active family who will love him and play with him! Some patient training will help him be the best boy ever! He will do best as an only dog right now. Hippo likes routine so someone who can create some structure for him would be ideal to help with his anxiety! A family with kids would be good, too - he has been great with kids of all ages, even with toddlers! A home with a backyard in a quiet neighborhood would be great! Special needs: Current medication to help with separation anxiety Prozac (fluoxetine) (~$5.00). Monthly cost depending on where purchased and market value. Adoption Fee: $ 250 ##1733826##

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These pups are in Oceanside, California too!

Below are our newest added Bullmastiffs available for adoption in Oceanside, California. To see more adoptable Bullmastiffs in Oceanside, California, use the search tool below to enter specific criteria!
We'll also keep you updated on Fiona's adoption status with email updates.
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Fiona

Neapolitan Mastiff

Female, Adult
Riverside, CA
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
-
Story
Meet Fiona 💕 Fiona is a beautiful Neapolitan Mastiff estimated to be around 3 years old. It’s very clear that she was used extensively for breeding before coming to us, and despite everything she’s been through, she is nothing short of incredible. She is incredibly sweet, gentle, and affectionate. Fiona has a playful side but is overall a super chill, easygoing girl who truly loves the simple things like cuddling, belly rubs, and being close to her people. She has the kindest soul and a very soft presence. Fiona is non-reactive and tolerant around other dogs, but she would do best as the only dog in the home. Due to the heavy facial folds common in her breed, her vision is not the best, so fast-moving dogs, especially during playful moments can sometimes startle her. She does have severe hip dysplasia, likely a result of being bred repeatedly, and she will need a home that understands and can manage her orthopedic needs. When Fiona arrived, she was very underweight, but with proper care and nutrition, she is slowly and steadily putting healthy weight back on. We are looking for a home with mastiff or giant breed experience, someone who understands her structure, limitations, and the special care she deserves. One of the sweetest things about Fiona? Sometimes she sings and it is absolutely adorable. Fiona has so much love to give and deserves a calm, understanding home where she can finally just be a dog, loved, safe, and cherished by her humans. If interested in meeting Fiona, please apply on our website today! https://www.underdogheroes.org/applytoadopt

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We'll also keep you updated on Fiona's adoption status with email updates.
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Fiona

Neapolitan Mastiff

Female, Adult
Riverside, CA
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Meet Fiona 💕 Fiona is a beautiful Neapolitan Mastiff estimated to be around 3 years old. It’s very clear that she was used extensively for breeding before coming to us, and despite everything she’s been through, she is nothing short of incredible. She is incredibly sweet, gentle, and affectionate. Fiona has a playful side but is overall a super chill, easygoing girl who truly loves the simple things like cuddling, belly rubs, and being close to her people. She has the kindest soul and a very soft presence. Fiona is non-reactive and tolerant around other dogs, but she would do best as the only dog in the home. Due to the heavy facial folds common in her breed, her vision is not the best, so fast-moving dogs, especially during playful moments can sometimes startle her. She does have severe hip dysplasia, likely a result of being bred repeatedly, and she will need a home that understands and can manage her orthopedic needs. When Fiona arrived, she was very underweight, but with proper care and nutrition, she is slowly and steadily putting healthy weight back on. We are looking for a home with mastiff or giant breed experience, someone who understands her structure, limitations, and the special care she deserves. One of the sweetest things about Fiona? Sometimes she sings and it is absolutely adorable. Fiona has so much love to give and deserves a calm, understanding home where she can finally just be a dog, loved, safe, and cherished by her humans. If interested in meeting Fiona, please apply on our website today! https://www.underdogheroes.org/applytoadopt

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We'll also keep you updated on Kona's adoption status with email updates.
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Kona

Anatolian Shepherd Mastiff

Female, Adult
Oceanside, CA
Size
(when grown) -
Details
Spayed or Neutered,
Story
How this pet arrived: Kona was brought in by her previous owner on December 6, 2025. Why this pet is the one for you:Meet Kona! This gorgeous brindle girl who is looking for a new home! She's been a bit fearful in our care, but with slow introductions and patience, her warm, affectionate side truly shines. Once she feels safe, Kona is the kind of pup who loves soaking up pets, riding shotgun on car adventures, and enjoying a breezy day at the beach. Kona is both crate trained and potty trained, giving her a great head start in her new home. She has done well with other dogs out and about, but she prefers not to share her favorite people - so she's looking to be the only dog in the home. Any kids in the household will need to meet her ahead of time to ensure it's a great fit for everyone. If you're looking for a loyal companion who just needs a little time to blossom, Kona may be your perfect match! Come in and ask about adopting today! At SDHS:Kona has been vaccinated, microchipped and spayed. Kona is now ready for her new home! Shy/Fearful Dog: Kona requires a virtual behavior consult, please watch THIS video to learn more about her. Primary Color: Brindle Weight: 60.4 Age: 3yrs 8mths 0wks

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Search for a Bullmastiff puppy or dog

Use the search tool below to browse adoptable Bullmastiff puppies and adults Bullmastiff in Oceanside, California.

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Bullmastiff puppies and dogs in nearby cities

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Related breeds in Oceanside, California

Anatolian Shepherds in Oceanside, California Neapolitan Mastiffs in Oceanside, California Mastiffs in Oceanside, California

Bullmastiff shelters & rescues in Oceanside, California

There are animal shelters and rescues that focus specifically on finding great homes for Bullmastiff puppies in Oceanside, California. Browse these Bullmastiff rescues and shelters below.

Here are a few organizations closest to you:

Shelter

0 miles

San Diego Humane Society - Oceanside Campus (Dogs)

2905 San Luis Rey Road, Oceanside, CA 92058

Pet Types: cats, birds, dogs, farm animals, horses, rabbits, reptiles, small animals

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Rescue

31 miles

The Animal Pad - CA Chapter

San Diego, CA 92103

Pet Types: dogs

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Looking for a specific shelter or rescue?

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 Bullmastiff puppy or dog?

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

Bullmastiff basics

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

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