Nicolai is a distinctive boys' name in United States, ranking #2075 in 2014 with 68 recorded births. The name reached its all-time peak in 2015 with 78 births ranking #1883. Since 1996, the popularity has increased by 195.7%. In 2014, approximately 1 in every 28,242 boys born was named Nicolai. STABLE Recent data shows the name is currently stable.