Josias is the Latin and Greek form of the Hebrew Josiah — meaning "God heals" or "God supports" — used in the Septuagint and Vulgate Bible translations, giving the name a distinct classical church Latin feel compared to its anglicized cousins. Ranked #1041 with a 2024 peak and 3,267 SSA records, Josias is an ancient form finding new appreciation.
Hebrew and Classical Transmission
The Hebrew Yoshiyahu — from Yah (God) plus yasha (to heal, to save) — was the name of one of Judah's most righteous kings, who reigned in the seventh century BCE and conducted major religious reforms described in 2 Kings. In the Greek Septuagint it became Iōsias; in Latin, Josias. The anglicized Josiah arrived through the King James Bible. Josias is the form used in pre-KJV English Bibles and remains the standard form in several Romance-language traditions. Hebrew names with royal biblical provenance carry the specific dignity of names given to reformers and just rulers.
The Josiah Family
Josias, Josiah, and José share the same Hebrew root. In American naming, Josiah has been the dominant anglicized form, a strong top-100 name in the past decade. Josias offers the classical Latin alternative for parents who want the same meaning and sound with a more distinctly historical feel. The S-ending gives Josias a slightly more formal, Old World register than the -ah ending of Josiah. Compare Josiah to see where the anglicized form ranks.
Counter-Reading: Confusion with Josiah
Josias and Josiah are phonetically similar enough that they'll be conflated, people will hear Josiah when you say Josias and vice versa. The -as ending is the marker of the classical form, but it requires active maintenance in casual speech. If the classical Latin form matters to your family's heritage or religious tradition, it's a worthwhile distinction. Otherwise, Josiah delivers the same meaning at a much higher rank with far less daily correction.