Nicholai is a distinctive boys' name in United States, ranking #4869 in 1997 with 13 recorded births. This places Nicholai in the top 45% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2017 with 51 births ranking #2520. In 1997, approximately 1 in every 145,007 boys born was named Nicholai. STABLE Recent data shows the name is currently stable.