Kale is a distinctive boys' name in United States, ranking #635 in 2007 with 382 recorded births. The name reached its all-time peak in 2008 with 544 births ranking #504. Since 1996, the popularity has increased by 310.8%. In 2007, approximately 1 in every 5,433 boys born was named Kale. FALLING Recent data shows the name is currently falling.