Jasiah is a distinctive boys' name in United States, ranking #3762 in 1998 with 19 recorded births. The name reached its all-time peak in 2022 with 658 births ranking #468. Since 1996, the popularity has increased by 58.3%. In 1998, approximately 1 in every 100,596 boys born was named Jasiah. STABLE Recent data shows the name is currently stable.
Jasiah is a modern variant of Josiah. Through that line it carries the older Hebrew root usually explained in relation to Yahweh supporting or healing.
Although the spelling is modern, the source ties it directly to Josiah rather than treating it as an unrelated invention. That gives it a stronger traditional footing than many other recent -iah names.