Nikolai is a moderately popular boys' name in United States, ranking #479 in 2021 with 622 recorded births. The name reached its all-time peak in 2016 with 639 births ranking #480. Since 1996, the popularity has increased by 658.5%. In 2021, approximately 1 in every 2,811 boys born was named Nikolai. STABLE Recent data shows the name is currently stable.