Nickolai is a distinctive boys' name in United States, ranking #7338 in 1998 with 8 recorded births. The name reached its all-time peak in 2015 with 31 births ranking #3563. Since 1996, the popularity has increased by 33.3%. In 1998, approximately 1 in every 238,915 boys born was named Nickolai. FALLING Recent data shows the name is currently falling.