Mastiff Dogs

If you think Labrador Retrievers are too small, check out a Mastiff. Massive and sometimes lumbering, these dogs have a gentle, loving and dignified personality that makes them the quintessential “gentle giant.” Responsive and obedient, Mastiffs also have a quiet dignity and a serene intelligence that makes them seem almost mellow.


Mastiff Pictures

  • Mastiff dog named Bree
  • Mastiff dog named Duke
  • Mastiff dog named Luna
  • Mastiff dog named CHP LAMAR'S SIR LANCEALOT
  • Mastiff dog named Guen
  • Mastiff dog named Argus
see Mastiff pictures »

Ideal Human Companions

    • Singles
    • Families with older children
    • Outdoorsy types

Mastiffs on Dogster

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Trademark Traits

    • Gentle Giant
    • Courageous
    • Even-keeled
    • Loving and sweet
    • Dependable
    • Slobbery

What They Are Like to Live With

Mastiffs rarely bark or make noise. When you come home, you’re likely to find yours stretched out on a bed or couch, their head perking up lazily to greet you. If you can get them off the couch, they’re always game for a roll on the carpet.

Mastiffs have few equals when it comes to protecting the family. They have been used as guard dogs for thousands of years. However, Mastiffs are more likely to scare off an intruder with their intimidating size—they are not the types to make a fuss unless there’s a real threat.

Things You Should Know

With some weighing almost 200 pounds, Mastiffs can be a handful to manage. Walking them, getting them in and out of cars can take a little extra time and muscle. You don’t necessarily need to be strong to manage a Mastiff—they obey commands and have a gentle way about them—but you need the time and patience (and space) to make them happy.

Mastiffs will be fine living in apartments as long as they are walked regularly. Some can be slightly lazy, but it’s important to encourage them to get off the couch and go outside. Always keep them on a leash in public.

A healthy Mastiff can live as long as 12 years. Common health issues include hip dysplasia, elbow dysplasia, heart disease and eye problems. They are also prone to bloat, so feed them smaller meals throughout the day. Also, they tend to drool, so you may want to keep a few rags around the house.

Mastiff History

According to some accounts, Mastiffs (also known as Old English Mastiffs) were brought to England by Roman invaders thousands of years ago. Another theory is that Phoenician traders introduced them to Britain around the same time. Either way, Mastiffs have been bred in England for more than 2,000 years as exemplary sheepherders, guard dogs, police dogs and companions. Around the mid-1940s, the Old English Mastiff suffered a drop in popularity in England, but enthusiasts from America sustained the breed and helped re-establish their numbers around the world.

The Look of a Mastiff

Mastiffs are mammoth, symmetrically shaped dogs with powerful frames. They have large, square heads with broad, wrinkly foreheads and short black muzzles. Their small, brown eyes have a watchful but warm expression, and their dark V-shaped ears hang close to the cheek. They have thick, strong necks that slope down to deep chests and level backs. Their tapered tails are set high and hang low. They have short, thick coats that come in apricot, fawn, silver or brindle. Overall, Mastiffs carry themselves with dignity and poise.

Talk About Mastiffs 

How a Mastiff saved me from a puma

I was camping in a national park and there were about 20 families parked. Me and a friend I'd just met decided to go on a trail run. We were leaving when I noticed a huge tan horse of a dog laying down by some children. I thought nothing of it except what a huge animal it was and went on my run.

Then, we were about 500 yards off when a puma jumped on my friend's back and all hell broke loose. I grabbed a log and hit the cat. Then we heard a deep bark that got the cat to stop and look, and then a bulldozer of a dog hit the cat, throwing both of them 15 feet from me and my friend. We ran, me holding my bloody friend up and back to the camp site.

We got there fast and soon after the giant lifesaver returned with blood all over him but he wasn't even hurt save for a few cuts. My friend received 37 stitches and the dog got only 7. The owner told me later that the Mastiff that saved us was named MoJo and he always watches out for humans in trouble.

After that I got a Mastiff pup. And I don't go to parks or anywhere dangerous with out my Mastiff to watch my back.

~Patrick, owner of a Mastiff