From the Hebrew name יְשַׁעְיָהוּ (Yesha'yahu) meaning "YAHWEH is salvation", from the roots יָשַׁע (yasha') meaning "to save" and יָה (yah) referring to the Hebrew God. Isaiah is one of the four major prophets of the Old Testament, supposedly the author of the Book of Isaiah.
Biblical Meaning: The name Isaiah is a Biblical baby name. In Biblical the meaning of the name Isaiah is: The salvation of the Lord.
