Nikolai is a distinctive boys' name in United States, ranking #640 in 2011 with 365 recorded births. The name reached its all-time peak in 2016 with 639 births ranking #480. Since 1996, the popularity has increased by 345.1%. In 2011, approximately 1 in every 5,203 boys born was named Nikolai. STABLE Recent data shows the name is currently stable.