Ki is a distinctive boys' name in United States, ranking #13438 in 2011 with 5 recorded births. This places Ki in the bottom 6% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2002 with 20 births ranking #4128. Since 1996, the popularity has decreased by 28.6%. In 2011, approximately 1 in every 379,798 boys born was named Ki. RISING Recent data shows the name is currently rising.