Klay is a distinctive boys' name in United States, ranking #7363 in 2010 with 11 recorded births. The name reached its all-time peak in 2022 with 103 births ranking #1668. Since 1996, the popularity has decreased by 45.0%. In 2010, approximately 1 in every 174,401 boys born was named Klay. FALLING Recent data shows the name is currently falling.