Kayn is a distinctive boys' name in United States, ranking #4952 in 2025 with 20 recorded births. This places Kayn in the top 36% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2021 with 28 births ranking #3870. In 2025, approximately 1 in every 85,404 boys born was named Kayn. RISING Recent data shows the name is currently rising.