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Mastiff puppies and dogs in Oswego, Illinois

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

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Adopt a Mastiff near you in Oswego, Illinois

These Mastiffs are available in Oswego, Illinois.
We'll also keep you updated on Orville's adoption status with email updates.
Photo of Orville

Orville

Mastiff

Male, 8 yrs 8 mos
Oswego, IL
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with dogs, Good with cats, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Hi, I’m Orville.  I'm on a medical hold while I receive some needed treatment.  Soon I'll be ready for my forever home so please click adopt to get your application approved. Dog’s Name: Orville Location: St. Joseph, IL Date of Birth: 06/28/2017 Gender: Male Breed: Mastiff Mix Color: Brindle Dog's Weight: 118 Gets along with: Dogs?: All Dogs Cats?:  All Cats Kids?: Have not tested with kids Training: Leash trained: Walks loose on leash Crate/Kennel:  Goes into crate/kennel on command Potty trained: Indicates a need to potty and doesn’t have indoor accidents Car:  Rides Well in car Meet Orville Orville is the definition of laid-back love.This tall, gentle boy is happiest right by your side — truly your shadow in the very best way. Whether you're moving from room to room or enjoying a quiet afternoon, Orville will calmly stroll along beside you. He’s a pleasure on walks and just as easy in the yard, where he prefers to stay close rather than wander. Orville is wonderfully quiet and only speaks up when it’s time to head outside. His house manners are impeccable — he has his potty routine down perfectly and hasn’t had a single accident in foster care. He politely sits for his food bowl and treats, and at this stage in life, he’s more about companionship than chaos. While he may be a little slower these days, that just makes him an easy keeper and an incredibly devoted companion. Orville is quiet and well mannered, great on walks, fully house trained, does not require a fenced yard, will do well as an only dog or with a calm buddy, and an excellent choice for a first-time giant breed owner. Orville isn’t looking for adventure — he’s looking for connection. If you’re hoping for a steady, gentle presence who will faithfully follow you through life’s simple moments, Orville is ready to be your loyal best friend. Until the profile is removed from the public’s view, this dog is considered available for adoption. To apply to adopt from Just Giants Rescue fill out an online. All approved applications are good for 12 months. Meet and greets can be scheduled with approved adopters. All dogs adopted from Just Giants Rescue are up to date on vaccines (Rabies, DHPP, Bordetella), microchipped, and spayed or neutered. Some exceptions may apply. All adoption fees are non-refundable; Just Giants is a NFP 501(c)3 organization. Meet and greets can be scheduled with approved adopters. Transportation from the foster home to the adopter is the responsibility of the adopter to coordinate. Just Giants does not adopt outside of the continental US. To apply to adopt from Just Giants Rescue, you can visit https://justgiants.org/adopt/ to fill out an application. All dogs adopted from Just Giants Rescue are up to date on shots, microchipped, and spayed or neutered. Some exceptions may apply. For more information about Just Giants or the dogs we rescue, please visit justgiants.org. All puppies will be adopted with age-appropriate vaccines and a spay/neuter contract. Adoption Fees -  $750 - 12 months or younger; $150 snip it ticket  $600 - 1 to 3 years old $500 - 4 to 6 years old $300 - 7+ years old; includes senior blood panel ##2653868##

Or, how about these Mastiffs in cities near Oswego, Illinois

These Mastiffs are available for adoption close to Oswego, Illinois.
We'll also keep you updated on Orville's adoption status with email updates.
Photo of Orville

Orville

Mastiff

Male, 8 yrs 8 mos
Oswego, IL
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with dogs, Good with cats, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Hi, I’m Orville.  I'm on a medical hold while I receive some needed treatment.  Soon I'll be ready for my forever home so please click adopt to get your application approved. Dog’s Name: Orville Location: St. Joseph, IL Date of Birth: 06/28/2017 Gender: Male Breed: Mastiff Mix Color: Brindle Dog's Weight: 118 Gets along with: Dogs?: All Dogs Cats?:  All Cats Kids?: Have not tested with kids Training: Leash trained: Walks loose on leash Crate/Kennel:  Goes into crate/kennel on command Potty trained: Indicates a need to potty and doesn’t have indoor accidents Car:  Rides Well in car Meet Orville Orville is the definition of laid-back love.This tall, gentle boy is happiest right by your side — truly your shadow in the very best way. Whether you're moving from room to room or enjoying a quiet afternoon, Orville will calmly stroll along beside you. He’s a pleasure on walks and just as easy in the yard, where he prefers to stay close rather than wander. Orville is wonderfully quiet and only speaks up when it’s time to head outside. His house manners are impeccable — he has his potty routine down perfectly and hasn’t had a single accident in foster care. He politely sits for his food bowl and treats, and at this stage in life, he’s more about companionship than chaos. While he may be a little slower these days, that just makes him an easy keeper and an incredibly devoted companion. Orville is quiet and well mannered, great on walks, fully house trained, does not require a fenced yard, will do well as an only dog or with a calm buddy, and an excellent choice for a first-time giant breed owner. Orville isn’t looking for adventure — he’s looking for connection. If you’re hoping for a steady, gentle presence who will faithfully follow you through life’s simple moments, Orville is ready to be your loyal best friend. Until the profile is removed from the public’s view, this dog is considered available for adoption. To apply to adopt from Just Giants Rescue fill out an online. All approved applications are good for 12 months. Meet and greets can be scheduled with approved adopters. All dogs adopted from Just Giants Rescue are up to date on vaccines (Rabies, DHPP, Bordetella), microchipped, and spayed or neutered. Some exceptions may apply. All adoption fees are non-refundable; Just Giants is a NFP 501(c)3 organization. Meet and greets can be scheduled with approved adopters. Transportation from the foster home to the adopter is the responsibility of the adopter to coordinate. Just Giants does not adopt outside of the continental US. To apply to adopt from Just Giants Rescue, you can visit https://justgiants.org/adopt/ to fill out an application. All dogs adopted from Just Giants Rescue are up to date on shots, microchipped, and spayed or neutered. Some exceptions may apply. For more information about Just Giants or the dogs we rescue, please visit justgiants.org. All puppies will be adopted with age-appropriate vaccines and a spay/neuter contract. Adoption Fees -  $750 - 12 months or younger; $150 snip it ticket  $600 - 1 to 3 years old $500 - 4 to 6 years old $300 - 7+ years old; includes senior blood panel ##2653868##
We'll also keep you updated on ADOPTION PENDING Weber's adoption status with email updates.
Photo of ADOPTION PENDING Weber

ADOPTION PENDING Weber

English Mastiff

Male, 3 mos
Yorkville, IL
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with kids, Good with dogs, Good with cats, Spayed or Neutered, Shots are up-to-date,
Story
Hello Everyone, My name is Weber and I’m a 3 mo old English Mastiff baby boy who is as sweet as can be. I am looking for my happily ever after. Investing your time and love into me will be so worth it!! I am an absolute sweetheart. I was rescued and am now in a foster home awaiting my forever family. I am a sweet, loving and smart lil baby who just wants a loving family. I am happy, playful and an absolute joy to be around. I love playing and I am right at the perfect age for lots of training. I am good with children and other animals. Please add a lotta unconditional love, sloppy kisses, tail wags and endless happiness to your family and contact jbrescuerangers@yahoo.com for an adoption application and bring me home. I will come with the works (neutered, up to date on everything, micro chipped, fecal, heart worm tested, monthly heartworm, flea and tick prevented, a free vet visit and medical insurance). What more could a new family ask for? Love and Kisses, Weber
We'll also keep you updated on Mac's adoption status with email updates.
Photo of Mac

Mac

Mastiff American Pit Bull Terrier

Male, 7 yrs 5 mos
Naperville, IL
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Not good with cats, Needs experienced adopter, House-trained, Spayed or Neutered, Shots are up-to-date,
Story
Hi, All Mac, here short for Mac truck lol. If you love big goofy dogs, I'm your guy. I am 100 lbs. of cuddle bug. I really don't think I am as big as they say I am because I would prefer to just be a couch Potatoe and lay next to my people and chew on a bone. I am a people kind of guy and love everyone I meet. I can probably live with another dog, but he would have to be calmer like me. but little dogs and very young children I would be afraid of because I am clumsy and wouldn't want to hurt them. I definitely don't think I could handle cats. But I know a lot of commands they say I am really smart and a fast learner. I am potty trained but do not like cages. I am strong on a leash so I would need a strong owner. Fill out an app here. https://docs.google.com/forms/d/e/1FAIpQLSdsHBf5NUtvyBYpzWm6Z5Z0JosLBTsDC98oxPTfxtM9brrc7Q/viewform
We'll also keep you updated on Tiger's adoption status with email updates.
Photo of Tiger

Tiger

Mastiff Belgian Malinois

Male, 1 yr 4 mos
Naperville, IL
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Good with cats, House-trained, Shots are up-to-date,
Story
Meet Tiger – The Confident Leader with a Heart of Gold!  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##
We'll also keep you updated on Toothless's adoption status with email updates.
Photo of Toothless

Toothless

Mastiff Belgian Malinois

Male, 1 yr 4 mos
Naperville, IL
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, Good with cats, House-trained, Shots are up-to-date,
Story
Meet Toothless – The Energetic, Goofy, and Strong Boy Ready for Adventure! Toothless has a personality as big as his playful heart! Born on 10/26/24, this sweet Mastiff and Malinois mix is bursting with energy, always ready to zoom around and explore the world with his goofy charm. He’s strong, confident, and full of fun, making him the perfect pup for an active household. Toothless is not just about high energy—he’s also a sweetheart who loves affection and human connection. Well-socialized, crate trained and potty trained, he’s a smart boy who will thrive in a home that gives him structure, love, and lots of playtime. Toothless is great on outings - check out his photos. Up to date on vaccines  Playful, strong, and always ready for fun 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 goofy, adventurous, and lovable boy to keep you on your toes, Toothless is your guy! Apply to adopt or foster today—don’t forget to mention Toothless’ name! ##2313604##
We'll also keep you updated on Buttercup's adoption status with email updates.
Photo of Buttercup

Buttercup

Mastiff Belgian Malinois

Female, 1 yr 4 mos
Naperville, IL
Size
(when grown) Med. 26-60 lbs (12-27 kg)
Details
Good with kids, Good with dogs, Good with cats, House-trained, Shots are up-to-date,
Story
Meet Buttercup – The Smart, Alert, and Sweet Girl Ready for Her Forever Home  Buttercup is the perfect mix of intelligence, curiosity, and sweetness! Born on 10/26/24, this Mastiff and Malinois mix is always alert and eager to learn, making her a great fit for an active home that will nurture her sharp mind. While she’s incredibly smart, Buttercup also has a gentle and loving side—she enjoys affection, playtime, and bonding with her humans. Like her littermates, she’s been with a trainer, well-socialized and potty trained, giving her a great foundation to thrive in her future home. Up to date on vaccines Intelligent, curious, and affectionate Crate trained and potty trained  If you’re looking for a smart and loving pup who will be your loyal companion, Buttercup is your girl! Apply to adopt or foster today—don’t forget to mention Buttercup’s name! Professionally trained in basics (sit, stay, walking on leash, etc) Foster-to-adopt option available  Got inquiries about Buttercup? Click here to fill out our inquiry form (this is not an application): https://petstablished.com/petlover/general_form/71282 ##2313586##

These pups are in Oswego, Illinois too!

Below are our newest added Mastiffs available for adoption in Oswego, Illinois. To see more adoptable Mastiffs in Oswego, Illinois, use the search tool below to enter specific criteria!
We'll also keep you updated on Delilah's adoption status with email updates.
Photo of Delilah

Delilah

Neapolitan Mastiff

Female, 2 yrs
Oswego, IL
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with dogs, Good with cats, Spayed or Neutered, Shots are up-to-date,
Story
Hi, I’m Delilah.  I'm still recovering from TPL surgery, but I'll be ready for my forever home soon.  Please click adopt to get your application approved.   Name: Delilah Location: Lake Station, IN Date of Birth: 02/01/2024 Gender: Female Breed: Neapolitan Mastiff Color: Black  Dog's Weight: 116 Gets along with: Dogs?:  Very dog friendly, but needs a slow introductioin to dominate dogs Cats?:  We have had multiple interactions and though she might be interested in a chase,               she is good with cats. Kids?: Not yet Training: Crate/Kennel:  Goes into crate/kennel on command She has made HUGE strides on car rides and she is good on least...most of the time. Meet Delilah! Delilah is a deeply loyal, sensitive soul who forms bonds that are nothing short of extraordinary. She may not be the type to greet you with instant kisses—but when she chooses you, she chooses you completely. Delilah does not trust easily, especially with men, and she will need patience, understanding, and a calm environment to feel secure. She relies heavily on her crate as her safe space and is 100% dependent on it to decompress and feel protected. For Delilah, her crate isn’t just a training tool—it’s her comfort zone, her retreat, and her security blanket. But here’s the beautiful part: once Delilah decides you are her person, the transformation is incredible. It’s not gradual. One day she may still be unsure… and the next, she trusts you completely. And when she trusts you? She gives her whole heart. She currently trusts three people and treats them all equally—with full devotion. She happily sleeps upside down with her head on her trusted human’s chest, snoring contentedly for at least an hour each day. It’s her way of saying, “You’re mine, and I feel safe.” Delilah loves squeaky toys (the squeakier, the better!), gentle attention, food, and being close to her humans Delilah’s perfect adopter is some who understands that love like hers is earned—and so worth it.  They must be patient, unwaivering trust that this is a non-violent fear, and be committed to socializing her slowly and responsibly - using a muzzle for portection while she builds confidence.  Delilah loves unconditionally, but she needs patience to get there. She is not reactive out of aggression; her hesitation comes from fear and uncertainty. With consistency, structure, and compassionate leadership, she blossoms beautifully. A good, confident fur-buddy (or even two or three!) certainly wouldn’t hurt. Having stable canine companions can help her continue building confidence in a safe and supportive way. Delilah isn’t for everyone—and that’s okay. She’s waiting for someone who sees past the fear and into the devoted, snuggly, upside-down-sleeping sweetheart she truly is. And when she finds her person, she will love them with everything she has. Until the profile is removed from the public’s view, this dog is considered available for adoption. To apply to adopt from Just Giants Rescue fill out an online. All approved applications are good for 12 months. Meet and greets can be scheduled with approved adopters. All dogs adopted from Just Giants Rescue are up to date on vaccines (Rabies, DHPP, Bordetella), microchipped, and spayed or neutered. Some exceptions may apply. All adoption fees are non-refundable; Just Giants is a NFP 501(c)3 organization. Meet and greets can be scheduled with approved adopters. Transportation from the foster home to the adopter is the responsibility of the adopter to coordinate. Just Giants does not adopt outside of the continental US. To apply to adopt from Just Giants Rescue, you can visit https://justgiants.org/adopt/ to fill out an application. All dogs adopted from Just Giants Rescue are up to date on shots, microchipped, and spayed or neutered. Some exceptions may apply. For more information about Just Giants or the dogs we rescue, please visit justgiants.org. All puppies will be adopted with age-appropriate vaccines and a spay/neuter contract. Adoption Fees $750 - 12 months or younger; $150 snip it ticket  $600 - 1 to 3 years old $500 - 4 to 6 years old $300 - 7+ years old; includes senior blood panel ##2555640##

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Use the search tool below to browse adoptable Mastiff puppies and adults Mastiff in Oswego, Illinois.

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Related breeds in Oswego, Illinois

Mastiff shelters & rescues in Oswego, Illinois

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

Here are a few organizations closest to you:

Rescue

0 miles

Just Giant Rescue Inc - Illinois Chapter

PO Box 358, Oswego, IL 60543

Pet Types: dogs

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Rescue

6.6 miles

Jellystone Bark's Rescue Rangers

Yorkville, IL 60560

Pet Types: dogs

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Rescue

6.9 miles

Find A Home Pet Rescue, Inc

Naperville, IL 60564

Pet Types: cats, dogs

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Rescue

11.6 miles

Angel Dog Alliance

Naperville, IL 60540

Pet Types: dogs

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Rescue

29.2 miles

Lucky Tails Rescue - IL transport

211 Pine Branch Drive, chicago, IL 60638

Pet Types: dogs

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Rescue

30.8 miles

Focus on Cumberland County Animal Safety-IL Transport Stop

Chicago, IL 60176

Pet Types: cats, dogs

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Rescue

31.8 miles

God's Dogs Rescue of TX for IL Transport Stop

Rosemont, IL 60018

Pet Types: dogs

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Rescue

33.9 miles

Second City Canine Rescue

570 N Smith st, Palatine, IL 60067

Pet Types: dogs

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Shelter

34.2 miles

Fido's Landing

Homewood, IL 60430

Pet Types: dogs

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Rescue

37.8 miles

Barrington Area Animal Rescue & Kennels NFP (BAARK Dog Rescue)

Barrington Hills, IL 60010

Pet Types: cats, 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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