Nkosi is a distinctive boys' name in United States, ranking #11698 in 2015 with 6 recorded births. The name reached its all-time peak in 2001 with 39 births ranking #2515. Since 1996, the popularity has decreased by 57.1%. In 2015, approximately 1 in every 319,376 boys born was named Nkosi. RISING Recent data shows the name is currently rising.