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5,713 Mastiffs for Adoption

Use our pet finder at Petstew.com to find your next Mastiff for adoption online. Search by location and price to find and adopt a Mastiff Dog or Puppy online.
1 Male
Trenton, OH / Mastiff / Male / Large
1 Female
Trenton, OH / Mastiff / Female / Large
1 Male
Trenton, OH / Mastiff / Male / Large
Adopt Dixie 10 a Mastiff, Boxer
Houston, TX / Mastiff / Female / Medium
You can fill out an adoption form on-line on our main website. Ms Dixie is getting a new chance! She has been spayed, is... more
Adopt MAXIMUS a Mastiff, Labrador Retriever
Chico, CA / Mastiff / Male / Large
Lively MAXIMUS (aka MAX) ACR14534 is a male,reddish brown, Mastiff mixture, weighing in at about 80 pounds, and is 2-3 y... more
Adopt Titan a American Staffordshire Terrier, Mastiff
Bronx, NY / Mastiff / Male / Large
*COURTESY POST* This is TITAN.. a attractive 6/7 yr M Tan/White Amstaff/Mastiff X. He's 70 pounds of PURE HUNK O' LOVE. ... more
Adopt Tatum a Labrador Retriever, Mastiff
Fort Bragg, CA / Mastiff / Male / Large
Tatum, born 2014 - Labrador/Mastiff, Male Tatums ready to explore every nook and cranny of adventure the world offers. T... more
Adopt Jackson a Mastiff, Boxer
Marion, IN / Mastiff / Male / Large
Jackson is my shelter name and, as much as I like that name, I would not mind getting a new name to go with a new home. ... more
Adopt Troy a Mastiff
Farmersville, TX / Mastiff / Male / Large
When we found out about Troy he was going to be euthanized - labeled aggressive. While he had not 'done' anything, the s... more
Adopt S's Whiplash aka Roxy a Pit Bull Terrier, Mastiff
Summerlin South, NV / Mastiff / Female / Large
Hello, I'm a 5 yr old that is looking for a forever home. I'm GOOD with children and am so eager to please. I love to cu... more
Adopt Zeus a Mastiff
Mcallen, TX / Mastiff / Male / Large
My name is Zeus. I was told I was a big guy, but I tend to forget and hang out with the little guys. I get a long with a... more
Adopt Kobe Bryant a Mastiff, Staffordshire Bull Terrier
Pasadena, CA / Mastiff / Male / Large
SEE VIDEO! To view video on Petfinder or Adopt-a-Pet, click on the video icon within Petfinder or Adopt-a-Pet. To view v... more
Adopt Butch a Mastiff, American Staffordshire Terrier
Los Angeles, CA / Mastiff / Male / Large
This guy was left tied to my neighbor's fence. I was hoping someone forgot him and would be back soon, but by morning, f... more
Adopt Taz a Mastiff, Plott Hound
Houston, TX / Mastiff / Male / Large
You can fill out an adoption form on-line on our main website.Requires bilateral TPLO Taz is the most exquisite brindle ... more
Adopt Samson "Sam" a Mastiff, Labrador Retriever
Paoli, IN / Mastiff / Male / Large
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