Nikolai is a distinctive boys' name in United States, ranking #540 in 2014 with 516 recorded births. The name reached its all-time peak in 2016 with 639 births ranking #480. Since 1996, the popularity has increased by 529.3%. In 2014, approximately 1 in every 3,722 boys born was named Nikolai. STABLE Recent data shows the name is currently stable.