Nickolai is a distinctive boys' name in United States, ranking #3964 in 2006 with 25 recorded births. The name reached its all-time peak in 2015 with 31 births ranking #3563. Since 1996, the popularity has increased by 316.7%. In 2006, approximately 1 in every 82,205 boys born was named Nickolai. FALLING Recent data shows the name is currently falling.