Koen is a distinctive boys' name in United States, ranking #1839 in 2002 with 62 recorded births. The name reached its all-time peak in 2023 with 468 births ranking #604. Since 1996, the popularity has increased by 1,140.0%. In 2002, approximately 1 in every 31,314 boys born was named Koen. STABLE Recent data shows the name is currently stable.