Also known as the blue heeler, it’s no surprise that the Australian cattle dog lands on the list of best blue dog breeds. While a red coat is also possible (known as the red heeler), a blue coat on this dog may be solid, mottled
As the name suggests, the Kerry blue terrier only comes in one color: blue. This breed has a unique, curly coat that ranges in shade from a deep slate to a light blue-gray. While the muzzle, head, ears, tail, and feet may be darker (or even black)
Weimaraners are typically steely gray, exhibiting their dilute brown coat gene. In some Weimaraners, a black dilute gene occurs instead, producing a dark gray-colored dog or blue Weimaraner.
One of the smallest dog breeds, there is no shortage of coat colors for the Chihuahua—including a beautiful blue coat. The recessive blue gene in Chihuahuas is relatively rare.
The shaggy coat of the bearded collie comes in a handful of colors, including blue. Commonly seen with white markings on the face, chest, legs, and tail, the body is always solid in color from the shoulders back.
The Boston terrier wears a little tuxedo, and while his coat is usually black-and-white in color, a recessive red or blue coat sometimes occurs. The blue coat variation isn’t acceptable according to the AKC breed standard.
The Italian greyhound's long legs and petite body give this dog a graceful look—especially when it happens to be sporting a blue coat. While not exclusively a blue dog breed, the Italian greyhound does carry the gene for a dilute black coat, looking like a dark gray coat with a distinctly blue cast.
The blue Lacy is a rare blue dog breed, developed by the Lacy brothers as a rancher’s right-hand companion and herding dog in Texas in the mid-1800s. While not yet AKC-recognized, this breed is Texas' state dog.
For a giant blue dog breed, look no further than the Neapolitan mastiff. This large breed is recognized by its imposing frame and loose skin, which often wrinkles around the head.
Most people know the Chinese shar-pei for its folds of skin and wrinkled appearance. This dog breed comes in a variety of coat colors, including blue.