I thought that Iberia was/is the European peninsula with Spain and Portugal its nations.
Historian Adolfo DomÃnguez Monedero argues that the name Iberian was given by Ancient Greeks to two different peoples located at the extremities of their world (in the Iberian Peninsula and the Caucasus) due to the mythical wealth associated with them (Tartessos and the Golden Fleece of Colchis).
Noite that the Greeks also used the term "Albania" -- which the ALBANIANS don't call themselves
The endonomic name for Albania (what they call tehmselves) is Shqipteria and that's what they have called each other for millenia
In modern times Iberia does mean the Iberian peninsula which has Spain and Portugal. The name comes from the Latin form of the River Ebro in the northeastern part of the peninsula.