Kailan is a distinctive boys' name in United States, ranking #3896 in 2025 with 28 recorded births. This places Kailan in the top 28% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2022 with 44 births ranking #2888. Since 1996, the popularity has increased by 154.5%. In 2025, approximately 1 in every 61,003 boys born was named Kailan. FALLING Recent data shows the name is currently falling.