Isai is a distinctive boys' name in United States, ranking #1084 in 2023 with 198 recorded births. This places Isai in the top 8% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2007 with 333 births ranking #701. Since 1996, the popularity has increased by 32.9%. In 2023, approximately 1 in every 8,629 boys born was named Isai. STABLE Recent data shows the name is currently stable.