List of ancient peoples of Italy

This list of ancient peoples living in Italy summarises all the different Italian populations that existed in antiquity; in historiography, they are generally referred to as the "Italic peoples" (in linguistics, this term has a stricter meaning and refers specifically to the sub-group of Indo-Europeans consisting of the Latino-Faliscans and Osco-Umbrians). Among these peoples, the Romans succeeded in Romanizing the entire Italian peninsula following the Roman expansion in Italy, which provides the time-window in which most of the names of the remaining ancient Italian peoples first appear in existing written documentation.

Source: Wikipedia — List of ancient peoples of Italy (CC BY-SA 4.0)