Nickolai is a distinctive boys' name in United States, ranking #6879 in 2011 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 2011, approximately 1 in every 158,249 boys born was named Nickolai. FALLING Recent data shows the name is currently falling.