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Breed Info: The UK Mastiff AKA Old English Mastiff

The UK Mastiff, also known as the Old English Mastiff, is a magnificent breed that has captured the hearts of dog lovers for centuries. With its imposing size, gentle demeanor, and fascinating history, the UK Mastiff is truly a breed worth celebrating. In this blog post, we will delve into some interesting facts about this majestic canine, including its average weight, height, characteristics, and breed history.

1. Average Weight and Height:

The UK Mastiff is one of the largest dog breeds in the world. On average, male UK Mastiffs weigh between 160-230 pounds (72-104 kg), while females typically weigh between 120-170 pounds (54-77 kg). In terms of height, males stand at around 30 inches (76 cm) at the shoulder, while females usually measure around 27.5 inches (70 cm).

2. Characteristics:

Despite its massive size, the UK Mastiff is known for its gentle and affectionate nature. They are incredibly loyal, patient, and protective of their families, making them excellent companions and guardians. With their wrinkled face, expressive eyes, and powerful build, UK Mastiffs exude both strength and grace. Their short coat comes in various colors, including fawn, apricot, and brindle.

3. Breed History:

The history of the UK Mastiff can be traced back to ancient times. This breed has its roots in the Molossus dogs of ancient Greece, which were renowned for their strength and courage. Mastiffs were brought to the British Isles by Phoenician traders and were later used by the Romans in warfare. Over the centuries, Mastiffs became popular among the British nobility and were used as guard dogs for estates and castles.

During the Middle Ages, Mastiffs were also employed as war dogs, capable of taking down armored knights on the battlefield. However, as the need for war dogs declined, the breed's purpose shifted towards being a loyal and gentle companion. Today, the UK Mastiff is primarily a beloved family pet and show dog, renowned for its gentle nature and impressive size.

Interesting Facts:

- The UK Mastiff holds the record for the heaviest dog in history. A male UK Mastiff named Zorba weighed an astounding 343 pounds (156 kg)!

- Despite their size, UK Mastiffs are known for being relatively low-energy dogs. They enjoy moderate exercise and are content with leisurely walks and playtime.

- The UK Mastiff has a lifespan of around 6-10 years, which is relatively short compared to smaller dog breeds.

- Famous UK Mastiff owners include celebrities like George Clooney, who has been seen walking his beloved Mastiffs.


The UK Mastiff is truly a breed that commands attention and admiration. With its massive size, gentle temperament, and fascinating history, it is no wonder that the UK Mastiff has become a beloved companion to many. Whether it's their imposing presence, loyal nature, or rich heritage, the UK Mastiff continues to capture the hearts of dog enthusiasts worldwide.

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