Ky is a distinctive boys' name in United States, ranking #4971 in 2006 with 18 recorded births. The name reached its all-time peak in 2017 with 40 births ranking #2982. Since 1996, the popularity has decreased by 35.7%. In 2006, approximately 1 in every 114,173 boys born was named Ky. FALLING Recent data shows the name is currently falling.