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Mastiff puppies and dogs in Connecticut

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

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Adopt a Mastiff near you in Connecticut

Below are our newest added Mastiffs available for adoption in Connecticut. To see more adoptable Mastiffs in Connecticut, use the search tool below to enter specific criteria!
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Photo of Reign

Reign

Mastiff

Female, 3 mos
Wolcott, CT
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with kids, Good with dogs, Good with cats,
Story
APPLY FOR REIGN   REIGN: BIG BABY IN TRAINING   At just 3 months old, Reign is already about 25 lbs and well on her way to becoming one very large lady. Does she know that? Of course not!   Reign is a Mastiff with the sweetest, softest personality. She’s docile, gentle, very smart, and has a nice moderate energy level. She enjoys playing, but she’s just as happy hanging out and being close to her people.   She also gets along beautifully with dogs, cats, kids, and other animals, so she’s basically one big, lovable social girlie.   Her current hobbies include: Forgetting she is not tiny Being ridiculously sweet Learning new things Making friends with everyone Preparing to eventually take up an entire couch   Reign is going to be a giant girl with an equally giant heart, and she’d love a family ready to watch her grow into the sweet, goofy powerhouse she’s meant to be. Large dog. Soft soul. Zero understanding of personal space. ADOPTION FEE: $663  ADOPTION FEE INCLUDES:  Alteration, Microchip, Vaccines APPLICATION: Click here to apply   IF YOU HAVE OWNED A PET IN THE LAST 10 YEARS, PLEASE CALL YOUR VET AHEAD OF TIME TO ALLOW RESCUES TO SPEAK TO THEM   APPLY FOR REIGN ##2877660##
Photo of Marty Hearty Macaroni

Marty Hearty Macaroni

Mastiff

Male, 1 yr 1 mo
Hartford, CT
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Good with cats, House-trained,
Story
If you're looking for a sweet, easygoing companion with a playful spirit and a heart full of love, Marty might just be your perfect match! This gentle boy has a wonderful balance of playful energy and relaxed charm, making him a lovely addition to a home looking for a loyal four-legged friend. One of Marty's greatest qualities is how beautifully he gets along with other dogs! Currently living in a foster home with five canine companions, Marty has proven himself to be a fantastic member of the pack. He loves a good game of chase, enjoys spending time with his doggy friends, and has a naturally polite play style. Marty has a great understanding of canine communication and knows how to express himself appropriately during playtime. With his medium energy level, he's always happy to join the fun but equally content enjoying a relaxing afternoon. Want to see Marty's sweet personality in action? Watch his video and get to know this handsome boy! https://youtu.be/Szo22xl7M8Y Marty has a gentle, thoughtful approach to making new friends. He enjoys greeting people with a curious sniff and appreciates having the opportunity to get acquainted at his own pace. As he becomes familiar with his surroundings and the people around him, his affectionate and loyal personality continues to blossom. He's the kind of companion who makes building a special connection feel incredibly rewarding. At home, Marty enjoys a comfortable routine and has experience relaxing in his crate. He may share a little farewell whimper when his favorite people head out, but he settles in nicely. He also enjoys getting outside to explore and would love a family who can continue helping him develop his leash manners. Marty occasionally gives one of his legs a little rest after an exciting play session, so having the flexibility to enjoy activity at his own pace would be wonderful for him. Marty would thrive in a peaceful, loving home where he can enjoy the best of both worlds: fun adventures with a canine companion and plenty of opportunities to unwind. A medium energy dog sibling would be an especially wonderful match! Whether it's a home with a yard or an easily accessible apartment, Marty would appreciate a comfortable environment and a family who enjoys life's simple pleasures. With his gentle heart, wonderful doggy manners, and playful personality, Marty has all the makings of an incredible best friend. He's ready to bring companionship, happiness, and a little extra sweetness to his forever home! https://adopt.animalsfirst.com/animal/62cc8e128b02916730334440/6a554f70882fd6dddf02582f Questions? Email Kristin@threelittlepittiesrescue.org We facilitate adoptions nationwide using our rescue run USDA certified transport system, ensuring every pet travels safely and comfortably with 24/7 care. Our transport includes drop off locations, in WA, UT, OR, ID, VA, PA, OH, NY, CT, VT, TN, KY, WI, MN, IL, WI and Canada (pick up in Bellingham, WA, Buffalo, NY or Brattleboro, VT for for Canadian adopters). You will have the opportunity to track their journey in real time, see photo updates, learn fun facts, connect with fellow adopters and fosters through our private Facebook event page! Before the adoption is finalized, you will meet your pet through a video call, creating a fun and personalized experience! The adoption fee is $1200 and includes all vetting (DAPP with booster, Bordetella, Rabies vaccine, multiple broad spectrum deworming treatments, spay/neuter, flea prevention, a 12 month heartworm preventative injectable, heartworm test and treatment if needed, a microchip with free lifetime registration, a high quality nylon Martingale collar, a health certificate deeming the pup healthy for travel, cost of transport*, and priceless years of love and loyal companionship! We proudly have over 17,000 successful adoptions and excellent Google Reviews: https://g.co/kgs/UQ5Pyai We care deeply about creating lasting matches between dog and family for long term success, and take the time to ensure each adoption is a fit through our matchmaking process. At our 2 acre Texas based property, we assess every animal with trainers on staff, we modify behavior as needed, and create individualized behavior plans to help prepare dogs for their future families including crate training, potty training, leash walking, etc. Our fosters are able to attend group training and socialization play groups helping them stay confident, well rounded, and adoption-ready. Our on-site trainers are dedicated to each dog’s growth and we enjoy seeing their progress! We go above and beyond to ensure every animal receives exceptional care. Veterinarians consistently praise our medical standards. From routine care to advanced treatments, each dog receives personalized attention. Hard costs for a healthy dog range from $804-$920; heartworm-positive dogs or those needing specialized care can exceed $2,000+. Adoption fees help cover a portion of these expenses, but without government funding, we rely on fundraising to bridge the gap—ranging from $100–$1,000+ per dog. Our adoption fees reflect the extensive care and resources that go into each animal we save. The adoption fee is a donation to the mission and goes far beyond getting a fully vetted pet. It doesn’t stop there! Our adopters also receive these SPECIAL PERKS: Extensive behavioral testing and information from trainers on our staff to ensure the perfect fit for your family Discounts on Embark DNA test kit- $30 off of Breed ID test or $50 off of Breed ID plus Health test 30 day trial of pet insurance with Trupanion A free private online dog training session with GoodPup, plus low pricing for future sessions Access to multiple dog trainers in your area, along with $40 off of your first session of in person dog training through Rover Training 70% off of your first order of Fetch, a delicious PNW based fresh dog meatballs subscription Coupons for a fun visit to Petco 20% off of Dr. Cuddles pet first aid and hygiene solutions Discounted heartworm, flea prevention, and monthly dewormer Access to our exclusive FB Adopters page, where you can network for play dates, resources, and connect with other adopters that share their passion for their adopted pup! The Greater Houston area faces one of the highest stray and overpopulation rates in the U.S. We’re a nonprofit on a mission—to rescue, rehabilitate, and rehome dogs at risk, while promoting spay/neuter outreach in the community. When you adopt, you save more than one life— the one you adopted, and the space opened up to save another. Follow our journey and stay connected! 🌐 threelittlepittiesrescue.org 📘 facebook.com/threelittlepittiesrescue 📸 instagram.com/threelittlepittiesrescue Ready to welcome a new furry friend into your life? APPLY TODAY and become a hero for pets in need! *Due to rising transportation costs, a $87 surcharge applies. DISCLAIMER- Breed type is determined based on general appearance and behavioral characteristics, and cannot be guaranteed without DNA testing. NOTE- Texas adopters must pick up from the Houston area.
Photo of Gorgeous Gaia

Gorgeous Gaia

Mastiff/Labrador Retriever

Female, Puppy
West Hartford, CT
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Good with cats, House-trained,
Story
Introducing this gloriously sweet, beautiful big mushy girl named Gaia!! This sweet pup and her siblings were surrendered into Rescue after their owner had an accidental litter. The owner bred rare breed mastiffs, but had a few other dogs. This little girl‘s mom was a large rare breed mastiff, but they could not confirm who the father was therefore we’re looking to surrender the litter sadly. All of them have markings of rare breed mastiff, with no clear indicator that they have been mixed with anything. They were raised with the family but the family decided they weren’t interested in finding buyers, and surrendered the entire litter to their local dog pound. We were shocked when we received a desperate call for help from the animal control officers. They wanted to ensure these sweet mushy babies made it out of the shelter and into the right rescue, where they would find amazing homes! This girl is now 24 weeks old and she has just had all of her medical work completed! She’s now current on all vaccines, dewormed, she’s current on preventative, microchipped, and spayed! She’s had all the good stuff done and been given a clean bill of health! She’s an amazing girl who is officially ready to begin her next chapter. Gaia is such a big baby, and everyone who meets her, loves her! In foster care she’s been incredible. She absolutely loves other dogs, is great with cats, and with every person she’s ever met. She has a hearty appetite and getting all the food she needs now! She has a great temperament with all, longing to be closed and connected to her loved ones. She has been fantastic with every dog she’s met, both littermates as well as new dogs in play groups. Gaia is such a wonderful girl!! She’s doing great with reliably going potty outside and learning the ropes of being a well loved house dog. As we cannot know for sure her dad, we can’t know how big she’ll mature to be, but we are guessing around 90 lbs. She is extremely devoted to her people and will thrive in a home where there’s a yard, hopefully another pup, and most definitely humans who enjoy a good snuggle on the couch and would like a dog super devoted who will follow you around the house and the yard, and commit their heart to you. She’s extraordinarily intelligent and has had an excellent foundation of socialization this far. She’s longing for a home where she will be a true family member, with people like her; easy going, and committed to forever by her devoted parents. She’s intelligent and playful as she’s a puppy, loving toys and adventure and all the great things puppies can learn about the world. That said, she’s a more relaxed puppy and also just loves snuggling in her downtime. If this beautiful sweet girl is a match for you, and you’d love to adopt her, please visit www.greatdivideanimalrescue.org/applicationdogs and submit an application for adoption today!!! **NOTE** to ensure prompt response- please go directly to our website (www.greatdivideanimalrescue.org) to apply, or email (inquiries.rescuematch@aol.com) directly with any questions to ensure your inquiry/application is received by our organization. Also, please always remember to check your spam email when working through an adoption process with any organization to ensure you always receive correspondence:)
Photo of Hank

Hank

Mastiff/Labrador Retriever

Male, Adult
Enfield, CT
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, House-trained,
Story
To adopt please fill out an adoption application. Be sure to watch his video!  Hank is an 18 month old lab/mastiff mix who was rescued as a stray from the streets of Memphis.  Friendly, well socialized, never meets a stranger!  Good with other dogs, not cat tested.  Hank is very strong and active so he’s recommended for children 6 years and older. Very active outside, but he settles down quickly in the house. Crate trained and housebroken. Hank has a very distinctive “look” and is described by his foster mom as “a big goofball” and everyone who meets him just falls in love with him. Loves to be with his people.  Fair on the leash, we’re working on it. Rides great in the car.  Estimated DOB is 1-1-25.  Hank has a small cherry eye in his right eye and that will be repaired prior to adoption. Healthy and fully vetted, current on shots, neutered, weighs about 75 pounds.  AWESOME young lab/mastiff mix will make a wonderful companion (and jogging partner)  for an active family.. To adopt please fill out an adoption application.Contact us at reply@gooddogrescue.com  visit us at Good Dog RescueOctober 25, 2026, 11:45 am
Photo of Bear Your Main Man

Bear Your Main Man

Mastiff

Male, 3 yrs 10 mos
Hartford, CT
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, House-trained,
Story
Bear Your Main Man is 110 pounds of handsome, and he takes up a very satisfying amount of space beside his person. He’s loving, enjoys being sweet-talked, and is happy to keep you company while you go about your day. His size certainly makes an impression, but the affection is what will have you making room for him at home. And possibly shopping for a bigger dog bed. Go watch Bear on YouTube to see this gorgeous guy out for a stroll, enjoying a drive around town, and soaking up all the love. Copy and paste his YouTube link into your browser: https://youtu.be/NqSan7VHckM We believe Bear is a Mastiff mix, with a look that reminds us of a Neapolitan Mastiff, though his breed is our best guess. He’s gorgeous, substantial, and a surprisingly low-key for a dog who has such a presence. At home, Bear is happy to putz around with you. Going into the kitchen? He might come along. Settling in for a quiet evening? Wonderful. He’ll find a spot to stretch out and become a very large rug. Being near his person and having somewhere comfortable to lounge suits him perfectly. Bear seems especially drawn to women, men are welcome but can you blame a big boy for having heart for a lady? Of course not! For a woman who loves big dogs, his devoted company and impressive presence is a lovely combination. He’s easy to picture beside you during a quiet evening, close enough for an occasional head rub while you unwind. He’s also a wonderful car companion. Bear generally hops right in and settles nicely in the back seat, ready to enjoy the ride. After a longer walk, a little sweet talk may help him decide to make the hop but its no trouble at all despite his size. And if there’s a chance to catch a breeze through an open window, he will be extra pleased to tag along on whatever adventure you choose. Walks with Bear are enjoyable, too. He has a great pace and walks nicely on leash. Squirrels can catch his attention, but he responds well to guidance. At 110 pounds, he’ll need a confident handler who is comfortable managing a large dog and can help him keep his enthusiasm about those pesky squirells in check. Bear knows sit, shake, and down, and he takes his treat payments gently. He also loves the water, so a chance to splash around would be a lovely addition to his otherwise fairly chill and leisurely agenda. If you ask Bear what his dream match would be we are sure he would say - a home where he is the only dog so he can enjoy his people all to himself. That does not mean dogs are not welcome but Bear doesn't need them to be happy. One of his current doggie friends is an easygoing female dog who understands all he wants is peaceful companionship and will pass on wrestling or chasing. Good company on a walk, a handsome passenger in the car, and a big, loving presence at home—Bear is ready to be your main man. A little sweet talk, some room to stretch out, and a person to adore would make him very, very happy. Apply to adopt Bear here: https://adopt.animalsfirst.com/animal/62cc8e128b02916730334440/6abc218569f70e230d0178b7 Questions? Contact Kristin@threelittlepittiesrescue.org We facilitate adoptions nationwide using our rescue run USDA certified transport system, ensuring every pet travels safely and comfortably with 24/7 care. Our transport includes drop off locations, in WA, UT, OR, ID, VA, PA, OH, NY, CT, VT, TN, KY, WI, MN, IL, WI and Canada (pick up in Bellingham, WA, Buffalo, NY or Brattleboro, VT for for Canadian adopters). You will have the opportunity to track their journey in real time, see photo updates, learn fun facts, connect with fellow adopters and fosters through our private Facebook event page! Before the adoption is finalized, you will meet your pet through a video call, creating a fun and personalized experience! The adoption fee is $1000 and includes all vetting (DAPP with booster, Bordetella, Rabies vaccine, multiple broad spectrum deworming treatments, spay/neuter, flea prevention, a 12 month heartworm preventative injectable, heartworm test and treatment if needed, a microchip with free lifetime registration, a high quality nylon Martingale collar, a health certificate deeming the pup healthy for travel, cost of transport*, and priceless years of love and loyal companionship! We proudly have over 17,000 successful adoptions and excellent Google Reviews: https://g.co/kgs/UQ5Pyai We care deeply about creating lasting matches between dog and family for long term success, and take the time to ensure each adoption is a fit through our matchmaking process. At our 2 acre Texas based property, we assess every animal with trainers on staff, we modify behavior as needed, and create individualized behavior plans to help prepare dogs for their future families including crate training, potty training, leash walking, etc. Our fosters are able to attend group training and socialization play groups helping them stay confident, well rounded, and adoption-ready. Our on-site trainers are dedicated to each dog’s growth and we enjoy seeing their progress! We go above and beyond to ensure every animal receives exceptional care. Veterinarians consistently praise our medical standards. From routine care to advanced treatments, each dog receives personalized attention. Hard costs for a healthy dog range from $804-$920; heartworm-positive dogs or those needing specialized care can exceed $2,000+. Adoption fees help cover a portion of these expenses, but without government funding, we rely on fundraising to bridge the gap—ranging from $100–$1,000+ per dog. Our adoption fees reflect the extensive care and resources that go into each animal we save. The adoption fee is a donation to the mission and goes far beyond getting a fully vetted pet. It doesn’t stop there! Our adopters also receive these SPECIAL PERKS: Extensive behavioral testing and information from trainers on our staff to ensure the perfect fit for your family Discounts on Embark DNA test kit- $30 off of Breed ID test or $50 off of Breed ID plus Health test 30 day trial of pet insurance with Trupanion A free private online dog training session with GoodPup, plus low pricing for future sessions Access to multiple dog trainers in your area, along with $40 off of your first session of in person dog training through Rover Training 70% off of your first order of Fetch, a delicious PNW based fresh dog meatballs subscription Coupons for a fun visit to Petco 20% off of Dr. Cuddles pet first aid and hygiene solutions Discounted heartworm, flea prevention, and monthly dewormer Access to our exclusive FB Adopters page, where you can network for play dates, resources, and connect with other adopters that share their passion for their adopted pup! The Greater Houston area faces one of the highest stray and overpopulation rates in the U.S. We’re a nonprofit on a mission—to rescue, rehabilitate, and rehome dogs at risk, while promoting spay/neuter outreach in the community. When you adopt, you save more than one life— the one you adopted, and the space opened up to save another. Follow our journey and stay connected! 🌐 threelittlepittiesrescue.org 📘 facebook.com/threelittlepittiesrescue 📸 instagram.com/threelittlepittiesrescue Ready to welcome a new furry friend into your life? APPLY TODAY and become a hero for pets in need! *Due to rising transportation costs, a $87 surcharge applies. DISCLAIMER- Breed type is determined based on general appearance and behavioral characteristics, and cannot be guaranteed without DNA testing. NOTE- Texas adopters must pick up from the Houston area.
Photo of Diego JuM

Diego JuM

Mastiff/Mixed Breed (Large)

Male, 2 yrs 3 mos
Hartford, CT
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with dogs,
Story
I'm Diego, a striking 2-year-old chocolate and blond brindle Mastiff mix, and I've got the heart of an adventurer! 🐕 At 63 pounds of pure energy and loyalty, I'm already neutered and crate trained—ready to be your partner in crime. I thrive with active owners who can match my enthusiasm, and I'm fantastic with other dogs, so playdates are always a go! If you're looking for a friendly, energetic companion who'll stick by your side through thick and thin, come meet me today. 💪❤️ Local adoption fee is $300 (in TX) Out of state adoption fee is $550 (includes transport to your area)

Search for a Mastiff puppy or dog

Use the search tool below to browse adoptable Mastiff puppies and adults Mastiff in Connecticut.

Mastiff puppies and dogs in Connecticut cities

Mastiff shelters & rescues in Connecticut

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

Here are a few organizations

Rescue

NorthBound Rescue Society

Middletown , CT 06457

Pet Types: cats, dogs

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Rescue

Cowboy Capital Pet Assistance League - CT transport

30 Waterchase Dr., Rocky Hill , CT 06067

Pet Types: dogs

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Rescue

Three Little Pitties Rescue - CT Transport

Hartford , CT 06103

Pet Types: cats, dogs

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Rescue

Great Divide Animal Rescue - West Hartford, CT

West Hartford , CT 06107

Pet Types: cats, dogs

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Rescue

A Stone's Throw Dog Rescue

Wolcott , CT 06716

Pet Types: dogs

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Good Dog Rescue

Enfield , CT 06082

Pet Types: dogs

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Rescue

Brass City Rescue Alliance

2 Service Road, Middlebury , CT 06762

Pet Types: dogs

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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 information

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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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