Meaning & Origin
A male given name from Hebrew, variant of Isaiah.
Isiah is a boy's and girl's baby name of Hebrew origin, a variant spelling of Isaiah, from Hebrew Yeshayahu, meaning 'God is salvation' or 'Yahweh saves,' composed of Yah (God) and yasha (to save, to deliver).
This alternate spelling became widely associated with NBA Hall of Famer Isiah Thomas — the Detroit Pistons legend who led his team to back-to-back championships and is considered one of the greatest point guards in history. The I-S opening distinguishes it visually from the standard Isaiah while carrying the same powerful prophetic meaning.