Kale is a distinctive boys' name in United States, ranking #999 in 1998 with 137 recorded births. The name reached its all-time peak in 2008 with 544 births ranking #504. Since 1996, the popularity has increased by 47.3%. In 1998, approximately 1 in every 13,951 boys born was named Kale. FALLING Recent data shows the name is currently falling.