The Kingdom of Asturias (Latin: Regnum Asturorum) was a Kingdom in the Iberian peninsula founded in 718 by Visigothic nobles under the leadership of Pelagius of Asturias. It was the first Christian political entity established following the collapse of the Visigothic kingdom after Islamic conquest of Hispania. In 722, Pelagius subsequently defeated the Umayyad Caliphate at the Battle of Covadonga, in what is usually regarded as the beginning of the Reconquista. The kingdom lasted until 924, when Fruela II became King of León.

The birthplace of the Asturian kingdom was the western and central territory of the Cantabrian Mountains part of the Gallaecia, particularly the Picos de Europa and the central area of Asturias. The main political and military events during the first decades of the kingdom's existence took place in this region. According to the descriptions of Strabo, Dio Cassius and other Graeco-Roman geographers, the lands of Asturias were inhabited in the beginning of the Christian era by several peoples, amongst whom the more important were: From the Cantabrians, the Vadinienses, who inhabited the Picos de Europa region and whose settlement gradually expanded southward during the first centuries of the modern era; the Orgenomesci, who dwelled along the Asturian eastern coast; and from the Astures, the Saelini, whose settlement extended through the Sella valley; the Luggones, who had their capital in Lucus Asturum and whose territories stretched between the rivers Sella and Nalón; the Astures (in the strictest sense), who dwelled in inner Asturias, between the current councils of Piloña and Cangas del Narcea; and the Paesici, who had settled along the coast of Western Asturias, between the mouth of the Navia river and the modern city of Gijón.

Asturias (English /əˈstʊriəs/, /əˈstjʊəriəs/, /ɑːˈstʊərjəs/), officially the Principality of Asturias (Spanish: Principado de Asturias [pɾinθiˈpaðo ðe asˈtuɾjas]; Asturian: Principáu d'Asturies [pɾinθiˈpaw ðasˈtuɾjes]), is an autonomous community of Spain. It is coextensive with the province of Asturias, and contains nearly all of the territory that was part of the Kingdom of Asturias in the Middle Ages. The autonomous community of Asturias is bordered by Cantabria to the east, by Castile and León to the south, by Galicia to the west, and by the Bay of Biscay to the north.

The most important cities are the communal capital, Oviedo (Uviéu), the seaport and largest city Gijón (Xixón), and the industrial town of Avilés. Other popular municipalities include Cangas de Onís (Cangues d'Onís), Cangas del Narcea, Gozón, Grado (Grau), Langreo (Llangréu), Laviana (Llaviana), Lena (Ḷḷena), Llanes, Mieres, Siero, Valdés, Vegadeo (A Veiga) and Villaviciosa (see also List of municipalities and comarcas in Asturias).