Salvation
A rare spelling variant of the Hebrew name Isaiah. It derives from the Hebrew name Yeshayahu, combining 'yesha' (salvation) and 'yah' (God), famously borne by a major biblical prophet.
Less common today
Isiaah isn't in the latest US Top 1000. It last peaked at #7,259 in 1997.
US births per 5-year period, 1990βpresent (SSA data).