Nkosi is a distinctive boys' name in United States, ranking #9324 in 2006 with 8 recorded births. The name reached its all-time peak in 2001 with 39 births ranking #2515. Since 1996, the popularity has decreased by 42.9%. In 2006, approximately 1 in every 256,890 boys born was named Nkosi. RISING Recent data shows the name is currently rising.