Nicolai is a distinctive boys' name in United States, ranking #2147 in 2012 with 63 recorded births. The name reached its all-time peak in 2015 with 78 births ranking #1883. Since 1996, the popularity has increased by 173.9%. In 2012, approximately 1 in every 30,105 boys born was named Nicolai. STABLE Recent data shows the name is currently stable.