Nikolai is a distinctive boys' name in United States, ranking #760 in 2009 with 299 recorded births. The name reached its all-time peak in 2016 with 639 births ranking #480. Since 1996, the popularity has increased by 264.6%. In 2009, approximately 1 in every 6,633 boys born was named Nikolai. STABLE Recent data shows the name is currently stable.