Nickolai is a distinctive boys' name in United States, ranking #5812 in 2000 with 12 recorded births. The name reached its all-time peak in 2015 with 31 births ranking #3563. Since 1996, the popularity has increased by 100.0%. In 2000, approximately 1 in every 163,661 boys born was named Nickolai. FALLING Recent data shows the name is currently falling.