What is the ancient name for Ireland?

The ancient name for Ireland is Hibernia. This name was used by the Romans, who referred to the island and its inhabitants in their writings and maps. Hibernia is derived from the Latin term, which itself is believed to have Celtic origins. The name reflects how the Romans viewed the island during their expansion and interactions with the Celtic tribes.

Erin and Eire are also names related to Ireland, with Erin being an Anglicized version of the Irish "Éirinn," and Eire being the Irish name for Ireland. However, these names are more modern or derived from the native Gaelic language, while Hibernia specifically denotes the island as it was known in ancient Roman times.

Ivernia, on the other hand, is a less commonly used name and is sometimes confused with Hibernia, but it is not the primary ancient name recognized in historical texts. Thus, Hibernia stands out as the most authoritative ancient designation for Ireland.