The Greyhound is the fastest dog breed in the world, with an average running speed of 45 mph. They are slender and athletic dogs with long legs and a deep chest.
The Saluki is another fast dog breed, with an average running speed of 40 mph. They are tall and slender dogs with long, silky hair.
The Whippet is a small but fast dog breed, with an average running speed of 36 mph. They are slender and muscular dogs with long legs and a deep chest.
The Afghan Hound is a large and graceful dog breed, with an average running speed of 35 mph. They have long, silky hair that covers their entire body.
The Borzoi is a long and slender dog breed, with an average running speed of 34 mph. They have a deep chest and long legs.
The Rhodesian Ridgeback is a muscular and athletic dog breed, with an average running speed of 32 mph. They have a distinctive ridge of hair that runs along their backs.
The Vizsla is a short-haired dog breed, with an average running speed of 30 mph. They are muscular and athletic dogs with a deep chest.
The Weimaraner is a large and muscular dog breed, with an average running speed of 29 mph. They have a gray coat that is often described as "silver ghost."
The Italian Greyhound is the smallest dog breed on this list, with an average running speed of 27 mph. They are slender and delicate dogs with long legs and a deep chest.