Akitas have a large build (just look at the size of that head!) which makes them a powerful animal. If you socialize them well with family and friends early on in life,
Though smaller than some of the other large dogs on our list, Appenzeller Sennenhunds still make a great guard dog due to their agility and energy. They were originally bred to work as farm dogs,
The medium-sized Aussie is both beautiful and brave. Most at home on a ranch or in a rodeo, these dogs are natural herders and will take any opportunity to get other animals (or even kids) in line.
These large, muscular dogs are a cross between Bulldogs and Mastiffs in a super-size package. To avoid altercations with other animals or people, they're best suited for houses with fenced-in yards.
These dogs are known for the unique patterns and spots on their coats for a pet that's as pretty as they are lovable.
These massive pups know exactly how to respond if they sense a threat to your house or family members, so don't underestimate their disarming fluffiness.
This powerful pup boasts a wavy, waterproof coat that sets it apart from other retrievers. However, you can still expect the loyal and energetic traits that make Golden Retrievers and labs one of the most popular pets.
Don't let a Doberman's sleek body fool you — they're strong, fast and fearless, making them the perfect dog to guard your house.
Estrelas are thought to be one of the oldest breeds in Portugal, where these dogs are named after a range of mountains. They're super gentle and protective of their people, so they'll fit in with a tight-knit family.