Isaiah is of Hebrew origin, derived from the name "Yishayahu," which translates to "Yahweh is salvation." It was borne by a significant biblical figure, the prophet Isaiah, who lived in Jerusalem during the 8th century BC and whose writings are recorded in the Book of Isaiah. The name gained popularity during the Middle Ages due to its biblical associations and has since been used consistently throughout history.
"The name Isaiah has seen significant fluctuations in popularity over the years. Starting with just 5 births in 1976, it peaked in 2004 with an impressive 58 births. Since then, it has maintained a steady presence, with totals ranging from 6 to 30 births per year up until 2023."