A variant of Josiah, from Hebrew, meaning Yahweh supports or heals.
Jossiah is a variant spelling of one of the Old Testament's most compelling royal names: Josiah, from the Hebrew יֹאשִׁיָּהוּ (Yoshiyahu), meaning 'God supports' or, in some interpretations, 'the fire of the Lord.' The name belonged to one of Judah's most celebrated kings — Josiah, who came to the throne at just eight years old, reigned for thirty-one years, and is remembered in the Books of Kings and Chronicles as a reformer who restored the law of Moses and dismantled the worship of foreign gods. He was, in the biblical narrative, a king who rediscovered a lost covenant.
The name traveled through the centuries with quiet dignity. In Puritan New England, Josiah was a popular choice among families who named children after Old Testament figures as a form of theological declaration. President Josiah Bartlet — the fictional president of television's The West Wing, played by Martin Sheen — brought the name back into American cultural conversation in the late 1990s, lending it a modern association with intellectual gravitas and moral seriousness.
The spelling Jossiah, with its doubled 's,' emerged in the late twentieth century as part of a broader trend toward orthographic individuality — distinguishing a child's name visually while preserving its sound and heritage. This variant sits in interesting company with Josslyn, Joss, and Josie, suggesting a family of names with shared sonic character. The name carries weight without heaviness — a name with a story already inside it, waiting for its new bearer to add chapters.