The Pointer, sometimes called the English Pointer, is a medium-sized breed of pointing dog developed in England. Pointers are used to find game for hunters, and are considered by gundog enthusiasts to be one of the finest breeds of its type; however, unlike most other hunting breeds, its purpose is to point, not retrieve game.

The popular belief is that the Pointer descends from the Old Spanish Pointer that was brought to England from Spain with returning soldiers at the beginning of the 18th century. Once in England, they were crossed with local dog breeds to improve the breed's hunting abilities.

The Pointer takes its name from the stance it adopts when it detects the scent of game, "pointing" at the hidden game as a visible signal to the hunter that it has found something and where it is; the breed is sometimes called the English Pointer to differentiate it from other pointing dog breeds. The term "bird dog" is usually used to describe all pointing dogs and setters, but in the United States the term is often used to describe the Pointer breed, particularly south of the Mason–Dixon line.

There has been much debate among dog historians about the ancestry of the Pointer. The most commonly held position is that the breed descends from Old Spanish Pointers that were imported into England. The popular belief is that Spanish Pointers were first introduced to England in 1713 by soldiers returning from Spain after the Peace of Utrecht. In his Cynographia Britannica, published in 1800, Sydenham Edwards states that the "Spanish Pointer was introduced to this country [England] by a Portugal Merchant, at a very modern period, and was first used by a reduced Baron, of the name of Bichell, who lived in Norfolk, and could shoot flying".

Other early sources suggest Portuguese Pointers, Italian Braccos or French pointers were the foundation of the English breed. In 1902, Victorian era sportsman William Arkwright produced the book The pointer and his predecessors often considered one of the best early histories of the Pointer for which he expended considerable time and money searching continental archives. In the book he notes that he did not find any truly convincing evidence of Spanish Pointers being the foundation stock of the Pointer but still concludes on the basis of all evidence that it is the most likely history. It is noteworthy that in those days dog breeds did not exist as they are known in more modern times, and that a more general pointing type of dog (typically a short haired, hound-like, air-scenting dog with regional variations of appearance that was used for indicating the location of game birds) was known in all of these countries.

A second less commonly held belief is a form of Pointer that was present in England, much earlier than the introduction of the Spanish Pointer, and that they were used from medieval times to indicate the location of hares which were subsequently coursed by greyhounds or caught by hawks; it is held that these dogs were subsequently heavily influenced by the introduction of imported continental European pointer blood.

The earliest recorded mentions of Pointers in England date from the early 18th century. John Gay mentions Pointers being used to hunt partridge in his 1713 poem Rural sports, and Peter Tillemans produced a painting of the Duke of Kingston-upon-Hull's kennel of pointers in 1725.

A compendium of sources state that in England early Pointers were crossed with other breeds to impart certain desirable traits, including setters, bloodhounds and foxhounds, with some mention of Bull Terriers and bulldogs. Early Pointers were comparatively heavy, ponderous dogs able to hold a steady point whilst the hunter readied his gun. With the steady improvement of firearms throughout the 18th and 19th centuries, faster and more agile dogs were sought so Greyhounds were increasingly introduced to add speed. The introduction of Greyhound blood resulted in the modern Pointer being a much finer dog with a comparatively tucked-up loin, tighter lips and low-set tail, more akin to that of the Greyhound than other European pointer breeds.