Achaia is of Greek origin, derived from the ancient region of Achaea in Greece. This rare and distinctive name has a rich historical context, as it was once used to denote the area that included many of the ancient city-states like Corinth and Sikyon. In modern times, Achaia is often associated with the Achaean League, an alliance of city-states during the Hellenistic period.
The name Achaia experienced a steady number of births from 1990 to 2005, with an average of five births per year, except for spikes in 2001 (six births), 2003 (seven births), and 2010 (eight births). There was a gap in recorded births between 1992 and 1995.