Nickolai is a distinctive boys' name in United States, ranking #5967 in 1997 with 10 recorded births. The name reached its all-time peak in 2015 with 31 births ranking #3563. Since 1996, the popularity has increased by 66.7%. In 1997, approximately 1 in every 188,509 boys born was named Nickolai. FALLING Recent data shows the name is currently falling.