The name Isaiah is of Hebrew origin and means "Yahweh is salvation" or "salvation of the Lord." It is derived from the Hebrew phrase Yəšaʿyāhū (יְשַׁעְיָהוּ), which combines the verb yasha' meaning "to save" or "to deliver," and yah , a shortened form of Yahweh, the name of God

. Isaiah is most famously known as the name of an 8th-century BC Israelite prophet, after whom the biblical Book of Isaiah is named. The prophet Isaiah was active during the reigns of several kings of Judah and is revered in Judaism, Christianity, and Islam

. In summary, Isaiah means "God saves" or "Yahweh is salvation," reflecting a divine promise of deliverance and protection