Kagan is a distinctive boys' name in United States, ranking #4728 in 2005 with 18 recorded births. The name reached its all-time peak in 2001 with 36 births ranking #2659. Since 1996, the popularity has increased by 12.5%. In 2005, approximately 1 in every 110,953 boys born was named Kagan. FALLING Recent data shows the name is currently falling.