The 25 Best Big Dog Breeds for Pets

Despite their size and intimidatingness, they're like enormous teddy bears to humans. 

World's largest dog breed: Great Dane The largest dog breed is this statuesque pup. Biggest means tallest.

Great Danes are dog towers. Giant Great Dane Zeus was declared Guinness World Records' Tallest Dog in 2012

for standing on his hind legs at above 7 feet. A brown bear standing on its feet is nearly that tall!

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Mastiff Mastiffs are one of the largest dog breeds per pound.

Mastiffs are large, mellow guard dogs that bark loudly at "intruders" and protect their owners.

But pet parents know they're softies—just look at that sweet face and soulful eyes! 

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