10 Most Aggressive Small Dog Breeds! (2022)

Some dog breeds are more prone to aggressiveness than others. Below you will find the most aggressive small dog breeds. It is important to remember that not every dog will be aggressive simply because of its breed.

Dachshund Dachshunds are prone to aggression because of their long history of badger hunting. Yes, these little dogs are notorious badger hunters, which requires aggression to succeed.

Chihuahua Unlike many dogs on our list, Chihuahuas were not bred to be hunters. Chihuahuas can become scared and anxious. These feelings can cause stress, making your Chihuahua feel the need to protect itself the only way it can: through aggressive behaviors.

Beagle Beagles are natural hunters. Therefore they have a high prey drive that sometimes leads to aggression. This aggression often arises around small animals. Once they have begun tracking their prey, it is often hard to get a Beagle’s attention.

Jack Russell Jack Rusell Terriers are energetic dogs. Unfortunately, if their energy is not used productively, they can become restless, anxious, and aggressive.

Cocker Spaniel Cocker Spaniels are one of the most aggressive dog breeds around. As a result, many of these dogs suffer from Rage Syndrome, also known as Sudden Onset Aggression. Canine Rage Syndrome is a behavioral disorder most commonly found among Cocker Spaniels.

Pekingese Although they are tiny, Pekingese is another dog breed known for being aggressive. These dogs become highly attached to one person, which can cause them to become territorial and protective.