Kazuki is a distinctive boys' name in United States, ranking #6158 in 2012 with 14 recorded births. This places Kazuki in the top 43% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1998 with 20 births ranking #3651. Since 1996, the popularity has decreased by 17.6%. In 2012, approximately 1 in every 135,473 boys born was named Kazuki. FALLING Recent data shows the name is currently falling.