Top 8 Most Aggressive Dog Breeds

Rough Collie

This breed became popularized by the devoted and endearing Lassie. However, just like the TV celebrity's antics, its friendly dog reputation could be made up. 

Miniature Poodle

Miniature poodles, like other small canines studied at the University of Helsinki, act aggressively to compensate for their small stature.

German Shepherd

German shepherds are commonly used in law enforcement and military applications, although not due to their violent nature. Rather, it's because they take training well. 

Miniature Schnauzer

Germans began breeding miniature schnauzers as security dogs in the 1800s. They might be more aggressive than their larger cousins because of their height.

Spanish Water Dog

These medium-sized dogs were originally bred to recover downed ducks, and they are well-known for their woolly curls. They may be more aggressive than usual as a result of that. 

Lagotto Romagnolo

The Lagotto Romagnolo, a breed of dog with curly coats, originated in northeastern Italy as a truffle-hunting dog. 

German Spitz Mittel

These little pups are known for yapping and having poofy coats. Although they have a strong mistrust of outsiders, they are loyal to their owners. 

Coton de Tuléar

Cotons are well-known for their talkative dispositions and fluffy white coats. They are great companions and develop very strong relationships with their owners.