Kail is a distinctive boys' name in United States, ranking #3786 in 2003 with 23 recorded births. The name reached its all-time peak in 2008 with 37 births ranking #3137. Since 1996, the popularity has increased by 76.9%. In 2003, approximately 1 in every 85,881 boys born was named Kail. FALLING Recent data shows the name is currently falling.