Athletic and energetic, these are great dogs for active adults. They have a sturdy build that suits their assertive, outgoing personality. These small dogs stand 10 to 12.5 inches tall and weigh eight to 10 pounds. The breed stems from a mix of dachshund, Italian greyhound, and other breeds over its long history. It just happened to be named as if it were when it was introduced to the U.S. This old breed originated in Germany and wasn't created to be a mini version of anything. Love the look of a Doberman but need a dog that fits in a small apartment? Meet the miniature pinscher, or min pin. But with appropriate socialization and training (which isn't hard because they're such fast learners), they can be a friendly, balanced dog. Like so many toy breeds with terrier backgrounds, they aren't particularly fond of children, other dogs, or strangers, and they can be vocal. They aren't particularly high-energy dogs, but are perfect for someone who likes to take a long daily walk or two and then cuddle on the couch.

Well-rounded dogs, Yorkies love to be engaged in training. However, grooming is still essential for these long-haired dogs. They are also known for their long, luxurious coats, which are considered hypoallergenic as they shed less than other dogs. Yorkies stand seven to eight inches tall and weigh around seven pounds, though some may be a bit larger. According to the American Kennel Club, it is the 10th most popular breed of dog. Yorkshire terriers started out as ratters in Yorkshire, England, but have grown to become a much loved companion animal. They have much more stamina than you might expect for a dog this size, so make sure you're up to the task of walking and playing on a daily basis. Owners who can work with the assertive, confident nature of these loving dogs will find a fast friend. An owner definitely needs to implement training because Poms can be territorial and develop habits of excessive barking or aggressiveness with other dogs. These alert, extroverted dogs are easy to train. Also important to note, Pomeranians shed their undercoats twice a year. To prevent mats, grooming is a necessity for these dogs, including a trim every couple of months. Their thick coat is actually a double coat, with a soft, thick, short undercoat and a long, straight, harshly textured outercoat. They also come in combinations of colors and can be spotted or brindle. Pomeranians come in over two dozen colors ranging from orange and red to tan, white and black. Popular pets, Pomeranians stand between six and seven inches tall and weigh a mere three to seven pounds. This spunky little fuzz ball is a spitz type breed.

Smallest recordee dog