Kasai is a distinctive boys' name in United States, ranking #2485 in 2020 with 52 recorded births. This places Kasai in the top 18% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2025 with 437 births ranking #639. Since 1996, the popularity has increased by 940.0%. In 2020, approximately 1 in every 33,174 boys born was named Kasai. RISING Recent data shows the name is currently rising.