Iberian /ˌaɪˈbɪə.ɹi.ən/noun 3adjective 2forms 3 noun3 •A native of modern-day Iberia (the European peninsula): a person native to Spain, Portugal, Andorra, or Gibraltar,. •[in the plural] (historical) An ancient people settled in the eastern and southern coasts of the Iberian Peninsula, at least from the 6th century BCE. •A Georgian (person from the country in Eurasia). adjective2 •Native to Iberia. •Of or pertaining to Iberia. formsIberians · more Iberian · most Iberian