Jerez de la Frontera or simply Jerez, also cited in old English-language sources as Xeres, is a city and municipality in the province of Cádiz in the autonomous community of Andalusia, Spain. Located in southwestern Iberia, it lies on the Campiña de Jerez, an inland low-land plain crossed by the Guadalete river, midway the Atlantic Ocean, the Guadalquivir river and the western reaches of the Subbaetic System.

Cádiz is a province of southern Spain, in the southwestern part of the autonomous community of Andalusia. It is the southernmost part of mainland Spain, as well as the southernmost part of continental Europe.