Nickolai is a distinctive boys' name in United States, ranking #4636 in 2010 with 21 recorded births. The name reached its all-time peak in 2015 with 31 births ranking #3563. Since 1996, the popularity has increased by 250.0%. In 2010, approximately 1 in every 91,353 boys born was named Nickolai. FALLING Recent data shows the name is currently falling.