Nickolai is a distinctive boys' name in United States, ranking #4416 in 2005 with 20 recorded births. The name reached its all-time peak in 2015 with 31 births ranking #3563. Since 1996, the popularity has increased by 233.3%. In 2005, approximately 1 in every 99,857 boys born was named Nickolai. FALLING Recent data shows the name is currently falling.