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Mastiff puppies and dogs in Ottawa, Illinois

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

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Adopt a Mastiff near you in Ottawa, Illinois

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 Ottawa, Illinois

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

Mastiff Rottweiler

Male, 6 mos
Yorkville, IL
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Good with cats, Spayed or Neutered, Shots are up-to-date,
Story
Available Now- I am a super adorable 5 month old Rottie/Mastiff mix who is 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, Lyon
We'll also keep you updated on Rafferty's adoption status with email updates.
Photo of Rafferty

Rafferty

Mastiff

Male, 7 mos
Oswego, IL
Size
(when grown) X-Large 101 lbs (46 kg) or more
Details
Good with dogs,
Story
Hi, I’m Rafferty. I am ready to find my forever home! Dog’s Name: Rafferty Location: Green Bay, WI Date of Birth: 06/01/2025 Gender: Male Breed: Mastiff Color: Brindle Dog's Weight: 85lbs Gets along with: Dogs?: All Dogs  Cats?: Unknown Kids?: Older kids or giant breed experienced younger kids Training: Leash trained: Walks loose on leash Crate/Kennel:  Goes into crate/kennel with a treat as an incentive Potty trained: Indicates a need to potty and doesn’t have indoor accidents Car:  Rides Well in car Meet Rafferty! Rafferty is a sweet, laid-back puppy who truly enjoys being around his people. He has done wonderfully with everyone he’s met so far and is always happy to share a few loving kisses. While he’s still getting used to his crate, Rafferty’s favorite place to relax is definitely the couch—he’s a big fan of cozy cuddle time! As a growing pup, Rafferty is still learning his manners. He may jump up occasionally, but he’s easily redirected and eager to learn. He’s just beginning to discover the joy of toys and treats and has quickly revealed that cheese is the way to his heart! Rafferty has an upcoming veterinary appointment to get up to date on his vaccinations, as well as an exam for kennel cough and his dew claws, so he’s on his way to being his healthiest, happiest self. Rafferty’s Ideal Home Rafferty would do best with an adopter who understands large or giant breed puppies and is committed to helping him learn the basics like sit, stay, and polite greetings. While he’s easygoing by nature, consistent guidance and positive training will help him grow into a well-mannered adult. He has shown no signs of protectiveness or guarding and did well with other dogs at the shelter, so he may be a good fit for a home with canine companions, though continued introductions and monitoring will be important. As he’s still young and learning, his ideal setup is still being discovered—but a patient, loving home ready for puppy training would be a wonderful match. If you’re looking for a gentle, affectionate pup with a calm demeanor and a love for people (and cheese!), Rafferty may just be the perfect addition to your family. 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. 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. 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 ##2621919##
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 3 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 Lyon's adoption status with email updates.
Photo of Lyon

Lyon

Mastiff Rottweiler

Male, 5 mos
Naperville, IL
Size
(when grown) Large 61-100 lbs (28-45 kg)
Details
Good with kids, Good with dogs, Good with cats, Spayed or Neutered, Shots are up-to-date,
Story
Available Now- I am a super adorable 4 month old Rottie/Mastiff mix who is 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, Lyon

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Related breeds in Ottawa, Illinois

Mastiff shelters & rescues in Ottawa, Illinois

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

Here are a few organizations closest to you:

Rescue

30.6 miles

Jellystone Bark's Rescue Rangers

Yorkville, IL 60560

Pet Types: dogs

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Rescue

37 miles

Just Giant Rescue Inc - Illinois Chapter

PO Box 358, Oswego, IL 60543

Pet Types: dogs

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Rescue

43.8 miles

Wagging Hearts - Naperville

1552 South Rt 59, PO Box #1487, Naperville, IL 60564

Pet Types: cats, birds, dogs

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Rescue

43.8 miles

Find A Home Pet Rescue, Inc

Naperville, IL 60564

Pet Types: cats, dogs

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Looking for a specific shelter or rescue?

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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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