Most believe that the Yorkshire Terrier puppy  is the product of comingling Scottish and English terriers when many Scots were displaced by the Industrial Revolution  and settled in England. Though pedigrees are not available for the first Yorkshire Terrier ancestors, several breeds have been suggested, including the Old English Black and Tan, which is also considered the ancestor for the Welsh Terrier and the Manchester Terrier, the Waterside Terrier, the Clydesdale Terrier, and the Paisley Terrier. The Scottish influence, brought in by the weavers during the industrial revolution, are the same ancestors as the Scottish Terrier, West Highland White Terrier, and Cairn Terrier (all once one breed). Many have suggested that at some time the Maltese, an old breed from Malta, may be in the backgound of some as well.

The original Yorkshire Terrier, known as the "Broken-Haired Scotch Terrier" was a 12-to-14 pound dog with wire hair whose intended purpose was the catching of rats and other vermin that lived in small spaces.

In  1870, the breed was renamed the Yorkshire Terrier, after the county of  Yorkshire, England where the breed is believed to have originated. The father of the breed is considered to be Huddersfield Ben, who was born in 1865 and died in 1871 from a carriage accident, the inbred offspring of a mother and son. Huddersfield Ben was bred by Mr. W. Eastwood Huddersfield. A multiple champion, Huddersfield Ben set the foundation for what would develop into the modern Yorkie.

Yorkshire terrier puppies, breed of small, spirited toy dog, classification used by breeders and kennel clubs to designate very small breeds of dogs kept as pets. Some Yorkies are selectively bred diminutive forms of larger breeds and others are naturally small.  Yorkshire, England, in the mid-19th cent. It stands about 9 in. (22.8 cm) high at the shoulder and weighs from 4 to 7 lb (1.8–3.2 kg). Its long, straight, glossy coat is finely textured and is dark steel blue and tan in color. Although the Yorkshire Terrier puppy is a "human-made" breed, precisely what dogs were used in its creation remains largely a matter of speculation since no breeding records were kept and the Yorkshire area contained many popular toy and terrier types that could have been used for crossbreeding.

The Yorkshire Terrier puppy , though a toy breed, still retains much of its Terrier  ancestry in terms of personality. Though Yorkie puppy personalities differ from dog to dog generally Yorkies are Intelligent, Independent and Spunky. Yorkie puppies specially males, are very territorial and are known for their disregard for the limitations of their own size.  Yorkie puppies will often attack much larger dogs despite their extreme size disadvantage. Yorkie puppies typically get along well with cats or other dogs, and love to play together in groups. However, they are still terriers, and even an old, sedentary lap dog will eagerly hunt rodents. Because Yorkshire terrier puppies are so small, they are easily injured, so while Yorkie puppies will get along very well with children, it can be dangerous for the Yorkie puppy  to keep it in a house with small or abusive children.