The Iberians were a set of peoples that Greek and Roman sources (among others, Hecataeus of Miletus, Avienus, Herodotus and Strabo) identified with that name in the eastern and southern coasts of the Iberian peninsula at least from the 6th century BC. These included the Airenosi, Andosini, Ausetani, Bastetani, Bastuli, Bergistani, Castellani, Cessetani, Ceretani, Contestani, Edetani, Elisices, Iacetani, Ilercavones, Ilergetes, Indigetes, Lacetani, Laietani, Oretani, Sedetani, Sordones, Suessetani, and Turdetani (there are some doubts regarding the ethno-linguistic affiliation of some of these). The Roman and Greek sources often diverge about the precise location of each Iberian people and also about the list of Iberian peoples.

The term Iberian as used by the ancient authors had two meanings. One, more general, referred to the whole of the population of the Iberian peninsula. The other, more restricted, with an ethnic sense, to the people living in the eastern and southern coasts of the Iberian peninsula, where by the 6th century BC they had absorbed cultural influences from Phoenicians and Greeks.