Nicholai is a distinctive boys' name in United States, ranking #2499 in 2010 with 50 recorded births. The name reached its all-time peak in 2017 with 51 births ranking #2520. Since 1996, the popularity has increased by 284.6%. In 2010, approximately 1 in every 38,368 boys born was named Nicholai. STABLE Recent data shows the name is currently stable.