Kazuki is a distinctive boys' name in United States, ranking #6813 in 2011 with 12 recorded births. This places Kazuki in the top 47% 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 29.4%. In 2011, approximately 1 in every 158,249 boys born was named Kazuki. FALLING Recent data shows the name is currently falling.