12 Bold and Beautiful Blue Dog Breeds

Blue Neapolitan Mastiff

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A true blue friend is one that will loyally stand by your side, and this is the perfect way to describe these blue dog breeds. Each of these canine companions carries the genes for a blue coat color—maybe a light, pale blue or a deeper, steely shade of blue. Regardless of what shade it takes, all blue-colored dogs are displaying a coat that is in reality influenced by a gene for either a diluted black coat.

There are both large and small blue dog breeds. Some of these breeds are recognized within their breed standard as carrying the gene for a blue coat, while others manifest a blue coat that falls outside of the guidelines for the breed. Regardless, many of these blue dog breeds are sought after and highly prized for their good looks and unique blue coat!

  • 01 of 12

    Australian Cattle Dog

    Australian Cattle Dog Blue Heeler

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    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, or speckled according to the breed standard. Other markings in black or tan may be present, but the overall impression of a blue heeler is well, blue. 

    Breed Overview

    Height: 17 to 20 inches

    Weight: 35 to 50 pounds

    Physical Characteristics: An athletic, muscular and broad dog; smooth, hard double-coat; coat color is usually blue, blue mottled or blue speckled but may also be red

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    Kerry Blue Terrier

    Kerry Blue Terrier

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    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), the breed standard calls for a dog that is described as either ‘blue gray’ or ‘gray blue,’ with either color showing more dominantly. However, the blue hue should not be missing.

    The most interesting thing about this blue dog breed is the fact that puppies are born black. Through a process described as ‘clearing,’ the coat of a Kerry blue terrier gradually changes to the characteristic blue coat color. Generally, a dog will have it’s mature coat by the age of 18 months.

    Breed Overview

    Height: 17 to 19 inches

    Weight: 30 to 40 pounds

    Physical Characteristics: Medium-size breed with a short coat of curls that is soft and wavy with no undercoat; a bearded face with heavy eyebrows often conceal this breed's eyes

  • 03 of 12

    Weimaraner

    Blue weimaraner

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    Weimaraners typically are known by their steely gray coat that is actually the dilute of the gene for a brown coat, but in some dogs a black dilute gene is present instead. This produces a dark grey colored dog, often described as a blue Weimaraner. According to the breed standard, this coat color is a disqualified—but regardless, people in search of blue dog breeds are often drawn to the athletic and striking look of the blue Weimaraner.

    Breed Overview

    Height: 23 to 27 inches

    Weight: 55 to 90 pounds

    Physical Characteristics: Sleek body; short coat; blue to gray color

  • 04 of 12

    Chihuahua

    Blue longhair chihuahua

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    One of the smallest dog breeds, there is no shortage of coat colors for the Chihuahua—including a beautiful blue coat. The gene responsible for producing this rare coat color is recessive, so this is not a common blue dog breed. When it does appear, the blue may be solid, or it can appear in combination with tan, white, fawn, or brown markings. Both long-haired and short-haired chihuahuas may have a blue coat color.

    Breed Overview

    Height: 5 to 8 inches

    Weight: Up to 6 pounds

    Physical Characteristics: Prominent ears and alert expression; short or long coat in many different colors, including black, white, fawn, blue and more

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  • 05 of 12

    Bearded Collie

    Blue bearded collie outside

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    The shaggy coat of the bearded collie comes in a handful 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. Blue bearded collies may be born with a darker color coat—blue or grey—and gradually lighten as they mature. 

    Breed Overview

    Height: 20 to 22 inches

    Weight: 45 to 55 pounds

    Physical Characteristics: Medium-sized breed with a distinctive shaggy look; long, coarse topcoat; colors include white with red, brown or brindle markings

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    Boston Terrier

    Blue Boston terrier puppy

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    The Boston terrier wears a little tuxedo, and while his coat is usually black-and-white in color, a red or blue coat is possible too! Like some other blue dog breeds, the blue coat color isn’t recognized in the AKC breed standard for Boston Terriers. Regardless, however, this recessive gene does sometimes appear. The blue coat of a Boston terrier may appear distinctly blue in color, or have a silver or grey shade.

    Breed Overview

    Height: 15 to 17 inches

    Weight: 12 to 25 pounds

    Physical Characteristics: Compact but sturdy build with round face and upright ears; smooth coat in solid colors or accented with white

  • 07 of 12

    Italian Greyhound

    Blue Italian greyhound

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    The long legs and petite body of the Italian greyhound give this dog a graceful look—especially when it happens to be sporting a blue coat. While not exclusively a blue dog breed, the Italia greyhound does carry the gene for a dilute black coat—which manifests itself as a dark grey with a distinctly blue cast. 

    Breed Overview

    Height: 13 to 15 inches

    Weight: 7 to 14 pounds

    Physical Characteristics: Dainty body with deep chest and long legs; thin tail; short, smooth coat in variety of colors including black, blue, fawn, and more

  • 08 of 12

    Blue Lacy

    Blue Lacy dog

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    The Blue Lacy is a rare blue dog breed, originating in the United States in the mid-1800’s as a rancher’s right-hand companion. While not yet AKC-recognized, the Blue Lacy is the state dog of Texas.

    These dogs carry the recessive gene responsible for producing a blue coat, but they may also produce puppies that are red, cream, or tricolor. Regardless of coat color, the Blue Lacy is known for having a natural aptitude for work and a high level of intelligence. 

    Breed Overview

    Height: 18 to 21 inches

    Weight: 25 to 50 pounds

    Physical Characteristics: Elongated muzzle with folded ears and athletic body type; short and smooth coat in various shades of blue, such as gray, light silver, or deeper charcoal but may also be red or tricolored

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  • 09 of 12

    Neapolitan Mastiff

    Blue Neapolitan mastiff

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    For a BIG 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. A blue coat is relatively common, along with black, mahogany, and tawny coat colors. No matter what color coat they have, these dogs are large and in charge!

    Breed Overview

    Height: 24 to 31 inches

    Weight: 110 to 150 pounds

    Physical Characteristics: Large, heavy boned dog with an abundance of loose skin across the body; short coat that comes in black, blue, mahogany, and tawny colors

  • 10 of 12

    Shar-Pei

    Blue Shar-Pei dog

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    Most people know the Shar-Pei for their folds of skin and wrinkled appearance. However, you may not realize that this dog breed carries the capacity for a variety of coat colors, including blue. The breed standard allows for a Shar-Pei coat to be any color—as long as it’s solid.

    Blue Shar-Peis can range from a lighter hue of grey blue to a deeper slate color. Some of these dogs have shading along the back and ears, but it must be of the same color as the rest of the coat. Interestingly, this blue dog breed has a blue-black tongue—regardless of coat color!

    Breed Overview

    Height: 18 to 20 inches

    Weight: 45 to 60 pounds

    Physical Characteristics: Compact, medium-sized dog known for distinctive appearance; wrinkled faces with loose skin; a blue-black tongue, small, round eyes; and very small, triangular ears; coats are very short and bristly, coming in black, brown, cream, and blue

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    Irish Wolfhound

    Blue Irish wolfhound

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    The gene responsible for diluting a black coat into a blue one is present in Irish wolfhounds as well. It’s believed that this trait was inherited from another blue dog breed, the Great Dane. While many blue Irish wolfhounds may appear somewhat gray at first glance, those with a blue coat have a distinctive blue tint to their coat and might also have liver-colored paw pads, nose, and eye rims.

    Breed Overview

    Height: 30 inches and up

    Weight: 105 to 120 pounds

    Physical Characteristics: Tall, long body; rough coat; colors include black, blue, brindle, cream, gray, and more

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    American Staffordshire Terrier

    American staffordshire terrier with blue coat

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    The American Staffordshire terrier is a breed of many colors, but is included on the list of blue dog breeds for its steel grey coat that often is described as blue. It generally appears in combination with white patches. Regardless of coat color, these dogs have short, coarse hair.

    Breed Overview

    Height: 17 to 19 inches at the shoulder

    Weight: 40 to 70 pounds

    Physical Characteristics: Medium to large dog with a muscular build and square head; short, smooth coat in many different colors