Koen is a distinctive boys' name in United States, ranking #623 in 2025 with 448 recorded births. This places Koen in the top 4% of ranked US boys' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 2023 with 468 births ranking #604. Since 1996, the popularity has increased by 8,860.0%. In 2025, approximately 1 in every 3,813 boys born was named Koen. STABLE Recent data shows the name is currently stable.