Isaiah comes from the Hebrew Yesha'yahu and means "Yahweh is salvation" or "God saves". The prophet Isaiah, whose book is one of the longest in the Bible, is quoted more often in the New Testament than any other prophet. In the United States Isaiah ranked number 47 in 2000, peaked at number 39 in 2006 and has stayed between number 46 and number 58 for the past decade, standing at number 57 among boys in 2025.