Mastiff Adoption in Oceanside, CA: Mastiff Puppies for Sale in Oceanside, CA

Adopt a Mastiff near you in Oceanside, California

These Mastiffs are available in Oceanside, California.

T.C.

Labrador Retriever Mastiff

Male, Adult

Oceanside, CA

Size

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

Details

Spayed or Neutered,

Story

How this pet arrived:T.C. was brought in by our Humane Law Enforcement on July 12, 2026.Why this pet is the one for you:Introducing T.C., a big bundle of happiness who cannot wait to bounce his way into your life. Still a pup at heart, this goofy boy is known for his spirited energy and a personality that fills every room with sunshine. While he is full of joy, he can be a bit jumpy when excited, so he is looking for a dedicated partner who will dote on him while providing the positive training and guidance he needs. He thrives on interaction and is eager to build a strong bond with someone committed to helping him grow into the best version of himself. T.C. is ready to start his new chapter and is searching for a home where his exuberant nature will be cherished. His ideal match is someone who enjoys the process of reward-based learning and can help channel his youthful enthusiasm into great manners. When you come to meet this charming fellow, please remember to bring a sturdy leash and collar for the journey home. If you are ready for plenty of laughter and a bright new companion, T.C. is prepared to be your most loyal and cheerful friend. Primary Color: Black Secondary Color: White Weight: 73.4 Age: 2yrs 1mths 2wks

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

These Mastiffs are available for adoption close to Oceanside, California.

Rowdy

Mastiff Mixed Breed (Large)

Male, Young

Carlsbad, CA

Size

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

Details

House-trained, Spayed or Neutered, Shots are up-to-date,

Story

Exciting News: This adorable pup can be at an adoption event NEAR YOU! First check our website to make sure the pup is still available for adoption: https://amazingdogsrescue.org/ap-dogs Or call or text 888.508.8943 (Monday to Sunday, 8 AM to 8 PM). Our medical team does everything they can to ensure the health of our dogs before they are placed up for adoption, which includes (but is not limited to): - Vaccinations against Parvovirus, Distemper, Adenovirus and Parainfluenza (all dogs have at least 2 of these vaccines (value $60+), puppies at least 3 (value $90+)) - Vaccination against Bordetella and Leptospirosis (value $40+) - Vaccination against Rabies (dogs 5+ months; value $20+) - Test (Idexx Snap 4Dx) for Heartworm, Lyme's disease, Anaplasmosis and Ehrlichiosis (for adult dogs; value $60+) - Recent full panel blood test (value $150+) for all adult dogs - Micro-chip with life long free registration (value $50+) - Deworming (roundworms, hookworms, whipworms and tapeworms; value $20+) - Treatment with Bravecto against fleas and ticks (value $50+) Of course, ALL our dogs are spayed or neutered before going to their new home. These surgeries cost anywhere from $150 to $500+). We even cut their nails for you ... We organize adoption events throughout the states of CA, NV and AZ. Check our website for more information. Here you can check if the pup is still looking for a home: https://amazingdogsrescue.org/ap-dogs Call or text 888.508.8943 (Monday to Sunday, 8 AM to 8 PM) if you have any questions. Check our social media to see the happy pictures of thousands of rescues who found a new loving home through us: https://www.facebook.com/AmazingDogsRescue https://www.instagram.com/AmazingDogsRescue

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'SAVE MY LIFE'

Mastiff

Male, 1 yr 7 mos

San Marcos, CA

Size

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

Details

Good with dogs, House-trained, Spayed or Neutered, Shots are up-to-date,

Story

WE ARE COURTESY POSTING THIS DOG FOR THE MORENO VALLEY ANIMAL SHELTER TO HELP THEM FIND A HOME. The shelter is severely overcrowded and desperately needs help finding adopters. Dogs are being turned in higher numbers than the shelter can accommodate; therefore, many are losing their lives simply due to a lack of cage space. We are helping get the word out about their immediate need. Please save this deserving pooch and clear a kennel for another dog in need today! This beautiful dog is located in the Moreno Valley shelter. The shelter needs to clear kennels. They are over capacity, and all available dogs are in urgent need. Please visit or email the shelter directly to adopt. PACO - ID#A551355 Shelter staff named me PACO, and I am a neutered male, brown and black Mastiff. The shelter thinks I am about 1 year and 6 months old. I weigh approximately 70.60 lbs. SEE MORE VIDEOS AND PHOTOS HERE: https://myalbum.com/album/XM6PgGQr5fuPAr/ STAFF NOTES: * Paco knows sit and shake * Paco appears to be potty trained * Paco loves toys * Paco enjoys sharing a kennel with a spayed Chinese Sharpei mix (Ariel A551354); they prefer to eat separately Moreno Valley Animal Shelter 14041 Elsworth Street, Moreno Valley, CA 92553 951-413-3790 Adoption hours: Tuesday - Friday 10 am - 5 pm Saturday 10:30 am - 3:30 pm Closed Sunday-Monday & Holidays

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Georgie

Mastiff Australian Shepherd

Female, Adult

Encinitas, CA

Size

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

Details

Good with kids, Not good with dogs, Not good with cats, Needs experienced adopter, House-trained, Spayed or Neutered,

Story

Georgie was born in our home five years ago. She is one of the sweetest most affectionate and sensitive animals I've ever had. She does not do well with men that she doesn't know she's not great with other dogs but I think it just depends on the vibe of the dog the biggest problem with Georgie is she has an obsession with cats and has killed two of my cats. I need to find her a home that does not have small pets or probably children she is a very special and sweet dog she just needs the right surroundings.

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Astrid

Mastiff American Pit Bull Terrier

Female, Young

Escondido, CA

Size

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

Details

Spayed or Neutered,

Story

How this pet arrived:Astrid was brought in by their previous owner on June 3, 2026. Why this pet is the one for you: Astrid is a sweet and friendly dog looking for a loving home. According to her owner, she is a social companion who loves to play with other dogs and has previously done well living with both cats and children. Astrid also knows basic commands like "sit" and "stay," which highlights her bright personality. Since she can sometimes show some arousal and impulsivity when she's excited, she would benefit from a family that can offer her a structured routine and healthy outlets for her enthusiasm. Astrid flourishes in an environment that provides plenty of companionship, interactive play, and the steady guidance she needs to be her best self. She is ready to become a loyal and fun-loving member of her new family. At SDHS:Astrid has been vaccinated, microchipped and spayed. Astrid is now ready for adoption! Primary Color: Brindle Secondary Color: White Weight: 73.2 Age: 1yrs 1mths 2wks

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Octavia

English Mastiff

Female, 7 yrs 3 mos

San Diego, CA

Size

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

Details

Good with kids, House-trained, Spayed or Neutered, Shots are up-to-date,

Story

Meet Octavia also called Tavi. Octavia is a big girl with an even bigger heart. Since being rescued from the shelter, she’s proven herself to be the perfect houseguest—gentle, loving, and so grateful for a second chance. Affectionately known as Tavi, she’s ready to leave her past behind and find a forever home where she can truly shine. She just needs someone to give her that chance… and we know she’ll give a lifetime of love in return. Due to Tavi's neglect, she had a severe eye infection when we rescued her from the shelter on the euth list. Unfortunately, we were unable to save her eye but that doesn't stop her one bit! ##2688495##

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Tiger

Mastiff Belgian Malinois

Male, 1 yr 8 mos

Temecula, CA

Size

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

Details

Good with kids, Good with dogs, Good with cats, House-trained, Spayed or Neutered, Shots are up-to-date,

Story

Meet Tiger – The Confident Leader with a Heart of Gold! I'm currently in California. My bags are packed, I’m ready to travel to my new home. Where are you? Are you my new family? I’ll travel to you! Tiger is ready to lead his way into your heart! Born on 10/26/24, this sweet Mastiff and Malinois mix is a natural leader —confident and curious. But don’t let his strong presence fool you—he’s also incredibly lovable, affectionate, and eager to bond with his humans. Tiger is a well-rounded boy who enjoys both playtime and cuddles. He’s been well-socialized and is potty trained, making him a great addition to a loving home. Whether he’s leading the charge on a new adventure or snuggling up for some quality time, Tiger is the perfect balance of strength and sweetness. Up to date on vaccines Confident, affectionate, and a great companion Crate trained and potty trained Professionally trained in basics (sit, stay, walking on leash, etc) Foster-to-adopt option available If you’re looking for a brave, smart, and loving boy to be your loyal companion, Tiger is your perfect match! Apply to adopt or foster today—don’t forget to mention Tiger’s name! ##2313590##

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Mastiff puppies and dogs in Oceanside, California

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Mastiff puppies and dogs in Oceanside, California

Learn More:

Adopt a Mastiff near you in Oceanside, California

These Mastiffs are available in Oceanside, California.

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

These Mastiffs are available for adoption close to Oceanside, California.

Search for a Mastiff puppy or dog

Mastiff puppies and dogs in nearby cities

Related breeds in Oceanside, California

Mastiff shelters & rescues in Oceanside, California

Looking for a specific shelter or rescue?

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

Mastiff basics

Mastiff basics