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Mastiff puppies and dogs in Carlsbad, California

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

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Adopt a Mastiff near you in Carlsbad, California

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 Carlsbad, California

These Mastiffs are available for adoption close to Carlsbad, California.
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Photo of Merlin

Merlin

Mastiff

Male, 4 yrs 6 mos
Riverside, CA
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with dogs, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Meet Merlin! He is a 4 year old Mastiff. Merlin was rescued from the shelter in very bad shape. Through the hard work, dedication, and love of his fosters, he has made full circle and is now a healthy, happy boy! He is good with people and most dogs. He is a calm playful gentle guy who is potty trained. If interested in learning more about this dog & setting up a potential meet & greet, please fill out our adoption application. https://www.underdogheroes.org/applytoadopt
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Hannah

Mastiff American Pit Bull Terrier

Female, Adult
Riverside, CA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
COURTESY POST Hannah’s journey hasn’t been an easy one. She found herself scared and just days away from giving birth at one of California’s toughest high-kill shelters, where she and her 10 puppies were placed on the euthanasia list. But Real Good Rescue and two amazing rescue partners came together to save this brave mama. Despite losing seven of her puppies during this tough transition, Hannah’s spirit never wavered. She proved to be the most loving and dedicated mother, nurturing her babies with unwavering attention, care and play. Thanks to her, all three surviving puppies were quickly adopted into loving homes. And like most mama dogs, Hannah was overlooked. Now, it’s Hannah’s turn to find the forever home she so deeply deserves. At 75lbs and approximately 4 years old, Hannah is the perfect mix of active and chill. She’s a social butterfly who’s lived harmoniously with small dogs and even a 5-year-old child. However, her dream home would be calm, peaceful, and all about her—no other pets, just allowing Hannah to soak up all the love. Outdoors, she enjoys staying active and exploring, but indoors she’s the ultimate couch potato, ready for cuddles and naps. If you or someone you know is ready to give this incredible girl the life and love she’s been waiting for, email adopt@realgood.dog
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Leo

Mastiff Mastiff

Male, Young
Oceanside, CA
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
This is Leo! Very gentle dog, will follow you everywhere looking for food. Hes a simple big guy and likes to wonder around, sleep, eat, get pet, and his ball. He doesn't chew up anything and is house trained, Im not sure how he is with kids. He used to have possessiveness issues but he really doesnt anymore, but if he has a ball in his mouth or other toy just leave him be and he’s never ever an issue. He is just fine with tug of war or playing around I dont have kids so I would assume this is more of an adult dog. Great big ol lazy dog, Im moving and will not be able to take him with me. Come give Leo a new home!
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Photo of Milki

Milki

Mastiff Boxer

Female, Young
Escondido, CA
Size
(when grown) -
Details
Spayed or Neutered,
Story
How this pet arrived: Milki was brought in by our Humane Law Enforcement team on 2/19/2025. Why this pet is the one for you:Meet Milki, a sweet and slightly shy girl looking for a loving home! She may take a little time to warm up, but once she does, she's all about cuddles and affection. Milki will thrive in a calm and patient environment, where she can feel safe and build trust. If you're ready to offer this gentle girl a peaceful space, she'll repay you with endless love and loyalty. Could Milki be the perfect addition to your family? Come visit her at our Escondido campus! At SDHS:This pet has been vaccinated, microchipped and spayed/neutered. This pet is now ready for her new home! Primary Color: Fawn Secondary Color: Black Weight: 87.4 Age: 1yrs 0mths 0wks
Photo of Kyle

Kyle

English Mastiff

Male, 9 yrs 6 mos
Valley Center, CA
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Kyle, is a healthy 130lb big lazy boy. Loves people. Great with most dogs but as he’s in his senior era going on 10 years old, he prefers non-high energy or puppy energy dogs, those that match his netflix & chillout lazy boy energy is preferred. He’s easy going and loves to roam around the yard or house. He is a sweet gentle giant doggo, loves to hangout on a porch or nap most of the day in a dog bed. Big fan of belly rubs. Kyle also loves garden, he’ll pull weeds and sniff the flowers! He’s very much in his "retirement era", a low maintenance ol' chap who just needs a stable safe space to live out the rest of his days with TV and AC. He doesn’t care for much activity as he’s happy with toys and chews and companionship. He’s an old man, with a big stride.
Photo of Rex

Rex

Mastiff German Shepherd Dog

Male, Young
San Diego, CA
Size
(when grown) -
Details
Spayed or Neutered,
Story
How this pet arrived:This pet was brought in by a community member on February 10, 2025. Why this pet is the one for you:Meet Rex! He is the definition of gentle giant. He has been quite timid with being in a shelter environment, but he loves pets and attention and will always want to be by your side. While we are still getting to know this pooch, we cannot deny one thing: they're ready for their next chapter in life! A consistent routine and fun, enriching activities will help them get used to their home and feel like part of the family! He has already been neutered, microchipped, and is up to date on all his vaccines. If you'd like to learn more about this pup come visit us at the San Diego Campus today! Primary Color: Brown Brindle Weight: 120 Age: 1yrs 3mths 1wks

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Mastiff shelters & rescues in Carlsbad, California

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

Here are a few organizations closest to you:

Rescue

2.5 miles

Underdog Heroes

Riverside, CA 92058

Pet Types: dogs

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Shelter

15.1 miles

San Diego Humane Society - Escondido Campus

3500 Burnet Drive, Escondido, CA 92027

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

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Rescue

17 miles

The Dank Dog Rescue & Sanctuary

Valley Center, CA 92082

Pet Types: dogs

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Shelter

27.3 miles

San Diego Humane Society - San Diego Campus

5500 Gaines Street, San Diego, CA 92110

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

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Shelter

27.4 miles

Coastal Animal Services Authority

221 Avenida Fabricante, San Clemente, CA 92672

Pet Types: cats, dogs

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Rescue

27.5 miles

Frosted Faces Foundation

1448 Pine St, Ramona, CA 92065

Pet Types: cats, dogs

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Rescue

30.1 miles

Save the Dalmatians and Others Canine Rescue, Inc

San Diego, Orange County, Los Angeles, California, dogs are fostered in So California, Southern CA, CA 92104

Pet Types: dogs

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Shelter

31 miles

Animal Friends of the Valleys

33751 Mission Trail, Wildomar, CA 92595

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

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Rescue

32.3 miles

A Wish For Animals

P.O. Box 4054, Dana Point, CA 92629

Pet Types: cats, dogs

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Rescue

40.8 miles

The Little Red Dog, Inc

Lake Forest, CA 92630

Pet Types: cats, dogs, rabbits, small animals

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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 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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