English Mastiff Temperament

English Mastiff temperament is one of the most important things to research before you adopt one of these dogs. English Mastiffs are often called “gentle giants” because of their calm, affectionate, and family-focused personalities. A well-bred English Mastiff should be stable, confident, observant, and deeply loyal to its family without unnecessary aggression.

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Despite their enormous size, many English Mastiffs are surprisingly sensitive and emotionally connected to their people. They are known for forming strong bonds with children and often prefer staying close to their families rather than roaming independently.

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At Muddy Mastiffs, temperament is one of our highest priorities. We specifically select for stable nerves, calm confidence, family companionship, and protective instincts that remain manageable and trustworthy in everyday life.

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It's important to note that adult English Mastiffs temperament is largely a product of the socialization and training they received as puppies. That's why we do Early Neurological Stimulation on all our puppies.

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In the past we have adopted a few adult Mastiffs that had not received adequate training and socialization as puppies, and let me tell you what. It is not as easy to train a full grown giant as it is to train a puppy.

 

We've also discovered that some Mastiffs have a higher prey drive than others. For some people this is ok. But if you are looking for a family pet that is going to be around children and small pets or livestock, you need to do extra research on the Mastiff family line you are choosing.

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Our current dogs are great, but we train an socialize them. It's so important for you to continue proper exposure from the time you bring your new puppy home to ensure a great finished dog.

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How Big Do English Mastiffs Get?

English Mastiffs are one of the largest dog breeds in the world. Adult males commonly weigh between 180–250 pounds, while females are often smaller but still extremely substantial dogs.

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However, size alone does not make a great Mastiff. Structure, movement, joint health, and overall balance are equally important in giant breeds. Oversized dogs without functional structure can struggle physically as they mature.

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Our breeding program focuses on producing giant English Mastiffs that remain athletic, functional, and capable of living comfortably as family companions. Our English Mastiff male line can reach up to 250 pounds. But we don't chase the scale. Instead we select for large bone structure and then keep our dogs fit.

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Are English Mastiffs Good Family Dogs?

English Mastiffs are widely loved as family companions because of their calm temperaments and protective instincts. While they are naturally imposing dogs, most well-socialized Mastiffs are gentle with children, affectionate with their families, and surprisingly laid back inside the home.

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Many Mastiff owners describe them as “couch potato giant breeds” because they often enjoy relaxing quietly near their people after exercise and playtime.

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Because of their size, early training and socialization are especially important. Giant breed dogs should learn manners, confidence, and calm behavior from an early age.

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Extra care should be taken with small children because Mastiffs are so large they can knock them over accidentally. Even a wagging tail can be painful. They aren't being bad. They are just big.

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Obviously we run an English Mastiff kennel and will continue to do so when we have small children. We will just make sure all time together is adequately supervised until the kids are big enough.

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