Kagan is a distinctive boys' name in United States, ranking #6512 in 2015 with 13 recorded births. The name reached its all-time peak in 2001 with 36 births ranking #2659. Since 1996, the popularity has decreased by 18.8%. In 2015, approximately 1 in every 147,404 boys born was named Kagan. FALLING Recent data shows the name is currently falling.