When you think of big dog breeds, you might imagine calm, slow-moving pets who just like to lay around. But many of these large dogs actually love being active and have lots of energy. Some, like the Great Dane, enjoy running, while others, like the Irish Wolfhound, are happiest exploring the outdoors. These big dogs aren’t just huge—they’re playful, strong, and need exercise to stay happy and healthy.
If you’re someone who enjoys hiking, jogging, or being outside, these giant breeds can be great companions. They’re loyal, fun-loving, and full of life. In this article, we’ll take a look at some of the most active giant dog breeds. You’ll learn about their traits, care needs, and what kind of owners they fit best with.
1. Kuvasz
- Height: 26–30 inches
- Weight: 70–115 pounds
- Energy Level: Moderate to high
The Kuvasz is a large dog breed often confused with the Great Pyrenees. Both have fluffy white coats and were originally bred to protect animals in cold weather. But the Kuvasz is a bit quicker and more independent. It has strong guarding instincts and stays alert most of the time.
This breed likes having space to move and needs to be given a purpose. Unlike the more relaxed Great Pyrenees, the Kuvasz wants to work and be active. They are not very outgoing with strangers but are very loving with their family. Grooming is needed regularly because they shed a lot.
What to Know:
If you train and socialize them early, they can get along well with other pets. They do best with owners who have experience and can give them both mental and physical activities daily. These dogs are a great mix of beauty, brains, and loyalty.
2. Irish Wolfhound
- Height: 30–35 inches
- Weight: 105–180 pounds
- Energy Level: Moderate
The Irish Wolfhound is one of the tallest dog breeds in the world. They might look serious, but they’re kind-hearted and gentle. Even with their large size, they are not lazy or clumsy. They enjoy short bursts of running and love to join their owners on walks or outdoor adventures.
These dogs were originally used to hunt wolves, so they are quick and have great stamina. Because of their size, leash training is important, and they need space to stretch and move around.
What to Know:
They’re great with kids and other pets, though their size might be too much for small children without training. They don’t bark much, don’t drool a lot, and enjoy a peaceful home. If you want a quiet, loving giant who knows how to relax and play, this might be your ideal dog.
3. Tibetan Mastiff
- Height: 24–30 inches
- Weight: 70–150 pounds
- Energy Level: Moderate
The Tibetan Mastiff was bred in the Himalayas to protect homes and livestock. It’s a strong and noble-looking dog with a thick coat that handles cold weather well. They’re independent, loyal, and protective, but they aren’t the best choice for new dog owners.
They need enough room to move and don’t do well in hot climates. Grooming is important because their thick coat can become matted. They’re cautious around strangers, and early training is a must.
What to Know:
These dogs don’t enjoy endless games of fetch but like scheduled walks and keeping an eye on their home. They form close bonds with their families and are great protectors. They’re calm indoors and don’t bark unless there’s a reason, which makes them great for experienced owners who want a loyal companion.
4. Scottish Deerhound
- Height: 28–32 inches
- Weight: 75–110 pounds
- Energy Level: Moderate to high
The Scottish Deerhound got its name from hunting deer in old times. This breed is elegant and fast, with long legs built for running. While they enjoy resting indoors, they also love running and need open space to move.
They are sweet and calm, making them good with kids and other dogs. But because they have a strong hunting instinct, you should be careful around smaller pets.
What to Know:
These dogs are polite with strangers and rarely bark. Their rough coat doesn’t shed too much and is easy to maintain. They are loving and gentle indoors but need regular exercise outside. If you want a friendly, athletic dog who’s low-maintenance at home, the Scottish Deerhound is a great choice.
5. Leonberger
- Height: 25.5–31.5 inches
- Weight: 90–170 pounds
- Energy Level: Moderate to high
The Leonberger was first bred in Leonberg, Germany, and was meant to look like a lion. But underneath that big mane is a gentle, friendly dog. These dogs are strong, smart, and great with families.
They were used for tasks like herding and guarding, but now they’re loving pets that enjoy being around people. They’re protective without being aggressive and need both physical and mental activities.
What to Know:
They shed a lot and need brushing often. Early socialization helps them get along with other animals. They love to swim, hike, and join in on family fun. If you’re looking for a strong but gentle dog that enjoys being part of the action, a Leonberger might be just right for you.
6. Newfoundland
- Height: 26–28 inches
- Weight: 100–150 pounds
- Energy Level: Moderate
The Newfoundland is a giant dog built for water work. They have webbed feet and a thick coat that resists water. These dogs are known for their rescue skills and calm, gentle nature. They are excellent around kids and make great therapy dogs.
They are strong, kind, and patient, but because of their size, they need regular grooming. When they’re young, be careful with exercise to avoid joint problems.
What to Know:
They’re not overly playful but do enjoy swimming and cool weather. They can drool a lot, but their loving nature makes up for it. Their quiet personality is comforting to people who need emotional support. If you want a calm, sweet dog who’s at home near water, a Newfoundland is perfect.
Final Thoughts
Active giant dog breeds offer more than just size—they bring energy, loyalty, and companionship into your life. Whether you’re exploring the woods, walking through a park, or relaxing at home, these gentle giants make every moment better. Just remember, they need space, exercise, and a lot of love. If you’re ready for the responsibility, these big-hearted dogs can become your most loyal adventure buddies.
