The Australian Shepherd is a medium sized breed that is highly intelligent. This breed is the only livestock herding breed developed in the United States - That’s right! They are not Australian at all. Early ancestors can be traced back to dogs that worked sheep on the west coast. The breed got its name due to the fact that the majority of these sheep were imported from Australia. (learn more about the history of the Aussie here).

This breed was developed to be primarily a working breed with strong herding and guarding instinct with the stamina to work all day. Aussies are extremely athletic dogs. They should move efficiently and effortlessly while remaining quick and agile.

Aussies are a loyal companion to their people, attentive and animated. They can be reserved with strangers on initial meetings, but not should not exhibit shyness - viciousness toward people or animals is intolerable.

This breed does require physical and mental exercise while working their minds is arguably the most important. They are highly biddable dogs that love to learn new things and perform tasks with great enthusiasm. They are incredibly versatile and excel in many avenues in the world of dog sports in addition to being wonderful active family companions and of course, working dogs.

Recognized colors: solid black, solid red, blue merle and red merle. All colors can be with or without white and/or copper trim. Blacks and blue merles have black noses and eye rims while reds and red merles have liver (brown) noses and eye rims.

Their eyes are very expressive and can be brown, blue, amber or any variation or combination. They can have flecks and/or marbling and different colored eyes.

The preferred height for males is 20 to 23 inches, females 18 to 21 inches.

The tail is short, naturally bobbed or docked

Australian Shepherd dog chasing a sheep outdoors on muddy ground, in a fenced area.

Breed Standard


Four Australian Shepherd dogs sitting on grass in front of bushes with colorful collars and leashes laid out in front of them.
An Australian Shepherd, running towards the camera with a joyful expression outdoors on grass.
Australian Shepherd with a colorful coat and heterochromatic eyes sitting in front of a wooden fence
Australian Shepherd jumping into a pool at a dog diving event, with water splashing around, and an event banner reading "North America Diving Dogs" in the foreground.

Breed Characteristics