Lyon (French pronunciation: [ljɔ̃] ( listen) locally [lijɔ̃]; Occitan: Lion; Arpitan: Liyon, IPA: [ʎjɔ̃]; English: /liːˈɒn/ or anglicized as Lyons/ˈlaɪ.ənz/), is a city in east-central France in the Rhône-Alpes region, situated between Paris and Marseille. Lyon is located at 470 km (292 mi) from Paris, 320 km (199 mi) from Marseille, 160 km (99 mi) from Geneva, 280 km (174 mi) from Turin, and 600 km (373 mi) from Barcelona. The residents of the city are called Lyonnais.

The city of Lyon has 480,660 inhabitants. Together with its suburbs and satellite towns, Lyon forms the largest agglomeration (metropolitan area) in France with the population of its urban area estimated to be 1,422,331 (Paris having no agglomeration) and the second urban area with 1,757,180. Its urban region represents half of the Rhône-Alpes region population with 2.9 million inhabitants. Lyon is the capital of this region, as well as the capital of the smaller Rhône département.