Nicholai is a distinctive boys' name in United States, ranking #3666 in 2014 with 29 recorded births. The name reached its all-time peak in 2017 with 51 births ranking #2520. Since 1996, the popularity has increased by 123.1%. In 2014, approximately 1 in every 66,222 boys born was named Nicholai. STABLE Recent data shows the name is currently stable.