Nicolai is a distinctive boys' name in United States, ranking #2201 in 2010 with 60 recorded births. The name reached its all-time peak in 2015 with 78 births ranking #1883. Since 1996, the popularity has increased by 160.9%. In 2010, approximately 1 in every 31,974 boys born was named Nicolai. STABLE Recent data shows the name is currently stable.