Ky is a distinctive girls' name in United States, ranking #17925 in 2015 with 5 recorded births. The name reached its all-time peak in 1998 with 9 births ranking #9736. Since 1996, the popularity has decreased by 28.6%. In 2015, approximately 1 in every 356,931 girls born was named Ky. STABLE Recent data shows the name is currently stable.