The world's largest dog breeds
Despite their size, these gentle giants are generally loyal, well-tempered and good-natured creatures.
The biggest dog breed: English Mastiff
According to the American Kennel Club, the biggest dog breed is the English Mastiff, also known as the Old English Mastiff. Mastiffs are considered the heaviest dog breed, but not necessarily the tallest. They can weigh anywhere from 50 kilograms to 155 kilograms. The height of a mastiff can range from 64 centimetres at the shoulder to 92 centimetres.
In 1989, Zorba, an English Mastiff, broke records as the heaviest and tallest dog ever, with a weight of 155.6 kilograms. Zorba measured over 244 centimetres from nose to tail and was said to be about the size of a small donkey. Hercules, a 128-kilogram English mastiff with a 96.5-centimetre neck, cinched the record in 2001 for World’s Heaviest Dog. Now check out the 13 tiniest dog breeds!
Runners-up: Neapolitan Mastiff
Neapolitan Mastiffs are fearless and extremely protective companions. They measure approximately 66 to 79 centimetres at the withers. Usually weighing about 77 kilograms, Neapolitan Mastiffs can also reach up to 90 kilograms. Check out the breeds that Reader’s Digest readers think are the best in the world.