Josias is a Spanish name for boys. The meaning is `God is my saviour` The name Josias is most commonly given to American boys. What do they use in other countries? Joshua (English, NAMES_Bibl) Josiah (English) Josue (Hebrew) Josh (English) Josha Joziah (English) The name sounds like: Esias, Jesus, Jesous Similar names are: Josia, Jesiah, Jonas, Jos... Found on https://www.pregnology.com/names/boys/Josias