Josia \j(o)-sia\ as a boy's name is a variant of Josiah (Hebrew), and the meaning of Josia is "Jehovah helps".

The baby name Josia sounds like Josua, Isia, Jasha, Jesiah, Josue, Joss, Joshua, Jozua, Josh and Joziah. Other similar baby names are Josias, Jodie, Jodi, Jona, Jori, Jorie, Jose, Jovi and Mosiah.