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Mastiff puppies and dogs in Philadelphia, Pennsylvania

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

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Adopt a Mastiff near you in Philadelphia, Pennsylvania

These Mastiffs are available in Philadelphia, Pennsylvania.
Photo of Pocono

Pocono

Mastiff

Female, 3 yrs
Philadelphia, PA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with dogs,
Story
Pocono ACCT-A-259475 is an approximately 3 year old female Mastiff dog who was picked up as a stray on 8/24/26. Pocono's fearful behavior is starting to improve and has had several good dog meets! She knows sit, down and paw! Pocono is medically in good condition and now she just needs to continue on a positive path out of the shelter environment so that she can start her better life sooner rather than later! VIDEOS: Pocono knows sit and paw: https://youtube.com/shorts/DvJ526XLD34?is=zCPqJqzhsjhUos75 Pocono and Thor: https://youtube.com/shorts/P_fDiJnLNY8?si=c0klhOt_pyTmWhFQ Pocono & Scooby: https://youtu.be/aPfRdK7oAXU Pocono and Laylay https://youtu.be/32F-jdhVzRM?is=tR97n3o04l4NBC3L https://youtu.be/YTZQtVmytt8?is=wYRRSPeszjxlnFy4 https://youtu.be/vtXniuo2LLU?is=DFHK_a8bBzDO0mXT BEHAVIOR NOTES: Per staff 8/29: I asked an experienced volunteer to get Pocono out, no issues getting out or going back in, leaning into her leg when being pet, tolerant. Met Thor Majestic in a walk along, very interested in sniffing, loose and Tolerant. During the meet, the other dog had a male handler, when he leaned forward at the fence and Pocono was on the other side of the fence, Pocono did a small huff backed up and moved away indicating discomfort Per staff 8/29: Due to behavioral improvement this dog is being leveled down from exp blue to blue Making available for adoption too 8/26 Staff Noted: Kennel Presentation: At the front of the kennel with wide/soft eyes, ears to the side and mid nub not moving. Leash Skills: When I went to leash she lowered her head and body. Came out of kennel and pulled mildly on the leash. Zig zagging while outside. Eyes darting. Sociability: Much better then yesterday. Skin no longer crawling. Allowed pets, however did not solicit for more. Gave me a play bow and then jumped straight in the air. Not eating treats outside. She was still looking out into the parking, less pacing then yesterday as well. Play: Tossed a rope toy, she caught it and played with it for a few seconds. Dog Interaction: Met Scooby. Tolerant and moved away on her own. Return to Kennel: Went right into kennel and was able to remove leash with hand. 8/25 Staff Noted: Kennel Presentation: Volunteer got her out of the kennel. Said he has to close the guillotine door due to her being in the back side. Not eating any of the treats. Leash Skills: Pulls hard on the leash. Sociability: Tolerant of pets, however skin was crawling and would flinch with even the slightest of movements. Heavy panting while outside. Exit searching in the large yard. Ate one hot dog and then spit out another hot dog piece. Knows sit. Play: n/a Dog Interaction: Met Laylay. stiff at fence greetings, followed the fence line. In the yard able to sniff each other and move away. Stayed near Laylay when she was moving around the yard. Return to Kennel: Volunteer had no issues returning to kennel. Color Level: Exp Blue due difficulty removing from kennel, not always eating and exit searching. Recommendations and considerations: Making rescue only for now. Per Staff 8/28 Easy to leash, came right to the front. Walked nicely on the leash, no pulling Yes, I handled the dog. Enjoy the attention Walked right into kennel and unleashed without issue Sweet big girl . Does wanna say hi to other dogs walking past. Came up to handler for few pats -- ACCT Philly is located at 111 West Hunting Park Ave in Philadelphia. We are open for adoptions 7 days a week. Please visit www.acctphilly.org/adopt for details. If you are a rescue interested in pulling this animal, please email our lifesaving team, or visit here if you are not currently a rescue partner: https://acctphilly.org/acct-philly-love-local-partnership-program/ Confirmed placement is considered a confirmation of an actual rescue pull. Possible placement, interested parties, and other "TBD" statuses are not considered confirmed and do not indicate an animal is no longer urgent. All animals at ACCT Philly are from Philadelphia, as the only open-intake animal shelter in Philadelphia, we are not able to accept animals from outside of Philadelphia. ACCT Philly's Pennsylvania kennel license number is 08313
Photo of Labrinia Jane

Labrinia Jane

Mastiff

Female, Adult
Philadelphia, PA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
-
Story
Meet Labrinia Jane!This All Star has only been here for a short time and is already a legend! A PSPCA hall of famer within her first week, just imagine what she can do with a lifetime in your home. If you are interested in adopting, stop by our shelter any day between 12-6:30pm. Please come prepared - bring a photo ID, proof of address, and everyone in the home including resident dogs with vaccination history._______________The Pennsylvania SPCA350 E Erie Ave., Philadelphia, PA 19134Kennel #3079

Or, how about these Mastiffs in cities near Philadelphia, Pennsylvania

These Mastiffs are available for adoption close to Philadelphia, Pennsylvania.
Photo of Lola

Lola

Mastiff Australian Cattle Dog

Female, 1 yr 3 mos
Bensalem, PA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
-
Story
Lola is a 1-year-old English Mastiff mix who is looking for someone patient enough to let her show you just how special she is. She can be a little shy at first and needs some time to warm up and learn to trust new people, but once she does, her sweet personality truly shines. Once Lola feels comfortable, she is affectionate, cuddly, playful, and absolutely loves being around her people. She’s also one smart girl! She already knows sit, paw, and down, and she’s eager to keep learning. Lola loves spending time outside, whether she’s sniffing around and taking in all the smells or having fun playing. She’s also open to meeting other pets and kids 14 and older. If you’re looking for a gentle, smart, loving girl and are willing to give her the time she needs to feel safe, Lola may be the dog for you!If you are interested in adopting, please visit Women`s Animal Center to fill out an application in person. We cannot accept any applications online or through email, and we cannot hold any specific animal for a potential adopter.You do not need an appointment to walk through our shelter, so please stop by any time during our adoption hours.You must follow the guidelines for our adoption process listed on our website (https://womensanimalcenter.org/our-animal-shelter/adoption-process-fees) to be able to meet and adopt one of our animals.If the animal you are interested in still has an active photo on our website, they are still at the shelter and available!PA Kennel License #1516
Photo of Valhalla Wags

Valhalla Wags

Mastiff Mixed Breed (Medium)

Female, Young
Southampton, PA
Size
(when grown) Small 25 lbs (11 kg) or less
Details
Good with dogs,
Story
Local Surrender Southampton Pa Pa Kl 5254 Meet Valhalla, a sweet little mastiff mix with a very big name and an even bigger personality! Valhalla is a baby girl who is currently in the adorable all paws, all wiggles, and absolutely no concept of personal space stage of puppyhood. Her mom is approximately 70 pounds and her dad is estimated to be around 120 pounds, so this little lady has some serious growing to do. In fact, she seems determined to prove that puppies can grow while youre watching them. One minute shes tiny, and the next minute shes somehow longer, taller, and taking up more room than she did yesterday. Valhalla is busy learning all about being a wonderful dog. Shes working on her house training, learning her manners, and figuring out which things are appropriate to put in her mouth. Like most baby puppies, she is a typical little mouthy pup, which means fingers, shoelaces, toys, blankets, and pretty much anything within reach can suddenly become extremely fascinating. Shell need a family who understands that puppies are adorable, enthusiastic little land sharks and who is willing to patiently teach her what belongs in her mouth and what definitely does not. This girl absolutely loves playing outside. Give her some room to explore, a few toys, and a little time to investigate the world, and she is one happy puppy. Toys are especially high on her list of favorite things, and Valhalla feels strongly that every toy deserves her immediate attention. She is also rapidly growing into those big feet of hers, so we suspect her toy collection may need to be upgraded regularly just to keep up with her. Valhalla came to us as a local surrender, and while her start may have been unexpected, she is ready for the next chapter of her life to be full of stability, patience, love, and plenty of opportunities to learn. Because Valhalla is expected to grow into a very large and powerful dog, we are looking for adopters who have previous bully-breed experience. Her future family should understand the commitment that comes with raising a large-breed puppy and be prepared to continue working on training, manners, socialization, and all those important life skills as she grows. She may have a very grand name, but Valhalla is still just a goofy baby who wants to play, explore, chew on things she probably shouldn't, collect toys, and eventually curl up with her people after a busy day of being a puppy. This big girl has a lot of growing, learning, and loving ahead of her. We can't wait to see the magnificent dog hiding inside this silly little puppy! Please visit our website www.wagsrescue.org to learn more about this amazing dog and Wags Rescue.
Photo of Hunter Bradley Philly

Hunter Bradley Philly

Mastiff Mixed Breed (Medium)

Male, Young
Southampton, PA
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with dogs, Not good with cats, Spayed or Neutered,
Story
PA Kennel License #5254Wags Rescue & ReferralSouthampton Pa 18966 Originated from ACCT KL 08313 Hunter is a big-hearted, slightly confused mastiff mix with a heart as huge as his paws! Estimated around 2 years old (but he may secretly be a mischievous young pup at heart), this neutered gentleman is ready to find a home that appreciates a gentle giant with a silly side. Hunter is a quick learnerhes already mastered sit and is working hard on down. He takes treats with the utmost politeness, and is practicing his leash manners like a champ. Crate-trained and loving his fetch sessions, hes a bundle of joy who brings smiles wherever he goes. Currently tipping the scales at just under 100 lbs, Hunter is working on filling out his frame. Despite his impressive size, he truly believes hes a lap dog, and hell happily snuggle as close as youll let him. Hes dog-friendly, playful, and hilariously unaware of just how big he really is. Hunter came to us from a local shelter, a bit on the skinny side, but his heart has always been full. Hes ready to find a home where he can grow into his body, his love, and his ever-expanding collection of toys. If youre ready for cuddles, goofy smiles, and a loyal companion who will happily fetch, sit, and snuggle like a boss, Hunter is your guy! Please visit our website www.wagsrescue.org to learn more about this amazing dog and Wags Rescue.
Photo of Knowles Wags

Knowles Wags

Mastiff Mixed Breed (Medium)

Male, Young
Southampton, PA
Size
(when grown) Small 25 lbs (11 kg) or less
Details
Good with dogs,
Story
Local Surrender Southampton Pa Pa Kl 5254 Meet Knowles, a sweet and silly little mastiff mix with a very important name, very big paws, and absolutely no idea how quickly he is growing! Knowles is a baby boy who is currently living his best puppy life while learning all about the world around him. His mom is approximately 70 pounds and his dad is estimated to be around 120 pounds, so this handsome guy has a whole lot of growing left to do. Right now he is still in the adorable my legs are too long, my paws are too big, and I have no idea what to do with either of them phase of puppyhood, but we have a feeling there is going to be one very impressive dog underneath all that puppy silliness. Knowles is busy learning his puppy manners and working on his house training. He is still a baby, so he is figuring things out one day at a time and will need a family who understands that puppy training is a process. He is making progress, but there may still be an occasional accident along the way because apparently remembering where the bathroom is can be a very complicated concept when you are busy being a puppy. He is also a typical mouthy puppy, meaning just about everything seems to require a little investigation with his teeth. Fingers, toys, blankets, shoelaces, and anything else within reach can suddenly become extremely interesting. Knowles will need patient adopters who understand that puppy mouths are part of the package and who are willing to continue teaching him appropriate manners as he grows. One of Knowles's favorite things is playing outside. He loves getting out to explore, sniff around, stretch those growing legs, and generally participate in whatever important puppy activities are happening outdoors. And when it comes to toys, Knowles is a big fan. Give this boy a toy and he is ready to play, chew, carry, wrestle, and probably decide that it is now officially his most prized possession. Knowles came to us as a local surrender and is now looking for a forever family who will give him the stability, patience, structure, training, and love he needs to grow into the wonderful dog he is meant to be. Because Knowles is a mastiff mix who is expected to become a very large and powerful adult, he will only be adopted to adopters with previous bully-breed experience. His future family should be prepared for the commitment that comes with raising a large-breed puppy and understand the importance of continued training, socialization, boundaries, and consistency. For now, Knowles is just a goofy baby boy with a rapidly growing body, enormous potential, a serious love of toys, and a whole lot of puppy mischief waiting to happen. He is learning, playing, growing, and doing his very best to convince everyone that whatever he just did was completely adorable and therefore totally acceptable. Knowles is going to be a big boy someday, but right now he is simply looking for someone who will love him through the puppy chaos, teach him how to be a good boy, and give him a forever home where he can grow into the magnificent dog he was meant to be. Please visit our website www.wagsrescue.org to learn more about this amazing dog and Wags Rescue.
Photo of Pocono

Pocono

Mastiff

Female, 3 yrs
Philadelphia, PA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with dogs,
Story
Pocono ACCT-A-259475 is an approximately 3 year old female Mastiff dog who was picked up as a stray on 8/24/26. Pocono's fearful behavior is starting to improve and has had several good dog meets! She knows sit, down and paw! Pocono is medically in good condition and now she just needs to continue on a positive path out of the shelter environment so that she can start her better life sooner rather than later! VIDEOS: Pocono knows sit and paw: https://youtube.com/shorts/DvJ526XLD34?is=zCPqJqzhsjhUos75 Pocono and Thor: https://youtube.com/shorts/P_fDiJnLNY8?si=c0klhOt_pyTmWhFQ Pocono & Scooby: https://youtu.be/aPfRdK7oAXU Pocono and Laylay https://youtu.be/32F-jdhVzRM?is=tR97n3o04l4NBC3L https://youtu.be/YTZQtVmytt8?is=wYRRSPeszjxlnFy4 https://youtu.be/vtXniuo2LLU?is=DFHK_a8bBzDO0mXT BEHAVIOR NOTES: Per staff 8/29: I asked an experienced volunteer to get Pocono out, no issues getting out or going back in, leaning into her leg when being pet, tolerant. Met Thor Majestic in a walk along, very interested in sniffing, loose and Tolerant. During the meet, the other dog had a male handler, when he leaned forward at the fence and Pocono was on the other side of the fence, Pocono did a small huff backed up and moved away indicating discomfort Per staff 8/29: Due to behavioral improvement this dog is being leveled down from exp blue to blue Making available for adoption too 8/26 Staff Noted: Kennel Presentation: At the front of the kennel with wide/soft eyes, ears to the side and mid nub not moving. Leash Skills: When I went to leash she lowered her head and body. Came out of kennel and pulled mildly on the leash. Zig zagging while outside. Eyes darting. Sociability: Much better then yesterday. Skin no longer crawling. Allowed pets, however did not solicit for more. Gave me a play bow and then jumped straight in the air. Not eating treats outside. She was still looking out into the parking, less pacing then yesterday as well. Play: Tossed a rope toy, she caught it and played with it for a few seconds. Dog Interaction: Met Scooby. Tolerant and moved away on her own. Return to Kennel: Went right into kennel and was able to remove leash with hand. 8/25 Staff Noted: Kennel Presentation: Volunteer got her out of the kennel. Said he has to close the guillotine door due to her being in the back side. Not eating any of the treats. Leash Skills: Pulls hard on the leash. Sociability: Tolerant of pets, however skin was crawling and would flinch with even the slightest of movements. Heavy panting while outside. Exit searching in the large yard. Ate one hot dog and then spit out another hot dog piece. Knows sit. Play: n/a Dog Interaction: Met Laylay. stiff at fence greetings, followed the fence line. In the yard able to sniff each other and move away. Stayed near Laylay when she was moving around the yard. Return to Kennel: Volunteer had no issues returning to kennel. Color Level: Exp Blue due difficulty removing from kennel, not always eating and exit searching. Recommendations and considerations: Making rescue only for now. Per Staff 8/28 Easy to leash, came right to the front. Walked nicely on the leash, no pulling Yes, I handled the dog. Enjoy the attention Walked right into kennel and unleashed without issue Sweet big girl . Does wanna say hi to other dogs walking past. Came up to handler for few pats -- ACCT Philly is located at 111 West Hunting Park Ave in Philadelphia. We are open for adoptions 7 days a week. Please visit www.acctphilly.org/adopt for details. If you are a rescue interested in pulling this animal, please email our lifesaving team, or visit here if you are not currently a rescue partner: https://acctphilly.org/acct-philly-love-local-partnership-program/ Confirmed placement is considered a confirmation of an actual rescue pull. Possible placement, interested parties, and other "TBD" statuses are not considered confirmed and do not indicate an animal is no longer urgent. All animals at ACCT Philly are from Philadelphia, as the only open-intake animal shelter in Philadelphia, we are not able to accept animals from outside of Philadelphia. ACCT Philly's Pennsylvania kennel license number is 08313
Photo of Labrinia Jane

Labrinia Jane

Mastiff

Female, Adult
Philadelphia, PA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
-
Story
Meet Labrinia Jane!This All Star has only been here for a short time and is already a legend! A PSPCA hall of famer within her first week, just imagine what she can do with a lifetime in your home. If you are interested in adopting, stop by our shelter any day between 12-6:30pm. Please come prepared - bring a photo ID, proof of address, and everyone in the home including resident dogs with vaccination history._______________The Pennsylvania SPCA350 E Erie Ave., Philadelphia, PA 19134Kennel #3079

These pups are in Philadelphia, Pennsylvania too!

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

Bear

St. Bernard American Bulldog

Male, Adult
Philadelphia, PA
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Not good with kids, Good with dogs, Not good with cats, Needs special attention, Needs experienced adopter, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
I have had Bear for 5 years, since he was 9 months old. He has always been a wonderful companion. Very sweet. Unfortunately, he is also defiant and reactive. Sometimes he growls at people who get too close to him. He is also suspicious of strangers who want to touch him. He never had any biting issues until the past year. First, he was in a boarding facility and snapped at a technician who tried to sit with him. Then more recently he bit my girlfriend in our home. 95% of the time is wonderful, but I can no longer tolerate the risk of the other 5%. He needs someone who is caring, patient, and experienced with reactive dogs.
Special Needs
Photo of Barley

Barley

Bullmastiff

Female, Adult
Philadelphia, PA
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Not good with kids, Good with dogs, Not good with cats, Needs special attention, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Meet Barley! A 5 year old Mastiff/Bully/Staffy/Dachshund mix with a big heart and love for cuddling. A couch potato who believes she’s a lap dog and loves her stuffies. Barley enjoys walks, but she’s more of a leisurely stroll kind of girl than a hiking partner. She has lived with another dog her entire life and does well with dogs, though her occasional zoomies could annoy her senior canine bro. She lives with a senior cat and is very curious, often wanting to play. Barley would do best in a home with older children or adults. She loves our kids but can be startled by the quick, unpredictable movements common with toddlers and likes to “supervise” them. She’s often separated and we feel she deserves a home where she can be more involved in daily life. Barley has seasonal skin allergies and receives a Cytopoint injection every 6–8 weeks during allergy season (Dec–April). She is a sweet, loyal gal looking for a loving home where she can cuddle, relax, and be part of the family.

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Use the search tool below to browse adoptable Mastiff puppies and adults Mastiff in Philadelphia, Pennsylvania.

Mastiff puppies and dogs in nearby cities

Related breeds in Philadelphia, Pennsylvania

Mastiff shelters & rescues in Philadelphia, Pennsylvania

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

Here are a few organizations closest to you:

Shelter

4.6 miles

Women's Animal Center

3839 Richlieu Road, Bensalem, PA 19020

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

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Rescue

4.8 miles

WAGS Rescue and Referral PA KL#5254

P.O. Box 1514, Southampton, PA 18966

Pet Types: dogs

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Shelter

10 miles

ACCT Philly

111 W. Hunting Park Avenue, Philadelphia, PA 19140

Pet Types: cats, dogs

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Shelter

10.1 miles

The Pennsylvania SPCA

350 E. Erie Avenue, Philadelphia, PA 19134

Pet Types: cats, dogs, farm animals, horses

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Shelter

13.8 miles

Burlington County Animal Shelter

35 Academy Drive, Westampton, NJ 08060

Pet Types: cats, dogs

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Shelter

16 miles

Hamilton Animal Shelter

2100 Sylvan Ave., Hamilton, NJ 08610

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

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Rescue

19.1 miles

Arcadia Animal Rescue - Central NJ Chapter

Hamilton, NJ 08620

Pet Types: cats, dogs, small animals

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Rescue

22 miles

Lucky Tails Rescue - NJ transport

east windsor, NJ 08691

Pet Types: dogs

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Rescue

23.5 miles

Don't Bully Us Rescue

PO Box 246, Wenonah, NJ 08090

Pet Types: dogs

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Rescue

25.6 miles

Gone Rogue Girls Rescue Inc.

Browns Mills, NJ 08015

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 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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