Nicholai is a distinctive boys' name in United States, ranking #3171 in 2007 with 36 recorded births. The name reached its all-time peak in 2017 with 51 births ranking #2520. Since 1996, the popularity has increased by 176.9%. In 2007, approximately 1 in every 57,645 boys born was named Nicholai. STABLE Recent data shows the name is currently stable.