The wildcat is a species complex comprising two small wild cat species: the European wildcat (Felis silvestris) and the African wildcat (F. lybica). The European wildcat inhabits forests in Europe, Anatolia and the Caucasus, while the African wildcat inhabits semi-arid landscapes and steppes in Africa, the Arabian Peninsula, Central Asia, into western India and western China. The wildcat species differ in fur pattern, tail, and size: the European wildcat has long fur and a bushy tail with a rounded tip; the smaller African wildcat is more faintly striped, has short sandy-gray fur and a tapering tail; the Asiatic wildcat (F. lybica ornata) is spotted.

The wildcat and the other members of the cat family had a common ancestor about 10–15 million years ago. The European wildcat evolved during the Cromerian Stage about 866,000 to 478,000 years ago; its direct ancestor was Felis lunensis. The silvestris and lybica lineages probably diverged about 173,000 years ago.

The wildcat is categorized as Least Concern on the IUCN Red List since 2002, since it is widely distributed in a stable global population exceeding 20,000 mature individuals. Some local populations are threatened by introgressive hybridisation with the domestic cat (F. catus), contagious disease, vehicle collisions and persecution.

The association of African wildcats and humans appears to have developed along with the establishment of settlements during the Neolithic Revolution, when rodents in grain stores of early farmers attracted wildcats. This association ultimately led to it being tamed and domesticated: the domestic cat is the direct descendant of the African wildcat. It was one of the revered cats in ancient Egypt. The European wildcat has been the subject of mythology and literature.

Felis (catus) silvestris was the scientific name used in 1777 by Johann von Schreber when he described the European wildcat based on descriptions and names proposed by earlier naturalists such as Mathurin Jacques Brisson, Ulisse Aldrovandi and Conrad Gessner. Felis lybica was the name proposed in 1780 by Georg Forster, who described an African wildcat from Gafsa on the Barbary Coast.

In subsequent decades, several naturalists and explorers described 40 wildcat specimens collected in European, African and Asian range countries. In the 1940s, the taxonomist Reginald Innes Pocock reviewed the collection of wildcat skins and skulls in the Natural History Museum, London, and designated seven F. silvestris subspecies from Europe to Asia Minor, and 25 F. lybica subspecies from Africa, and West to Central Asia. Pocock differentiated the:

In 2005, 22 subspecies were recognized by the authors of Mammal Species of the World, who allocated subspecies largely in line with Pocock's assessment.

In 2006, the Chinese mountain cat was placed within the wildcat lineage, being found to be more closely related to the Asiatic wildcat and the domestic cat than to the European wildcat through nuclear DNA, while being placed as an outgroup to the wildcat clade through mitochondrial DNA.