Nicholai is a distinctive boys' name in United States, ranking #2520 in 2017 with 51 recorded births. The name reached its all-time peak in 2017 with 51 births ranking #2520. Since 1996, the popularity has increased by 292.3%. In 2017, approximately 1 in every 36,281 boys born was named Nicholai. STABLE Recent data shows the name is currently stable.