Nicholai is a distinctive boys' name in United States, ranking #2693 in 2011 with 45 recorded births. The name reached its all-time peak in 2017 with 51 births ranking #2520. Since 1996, the popularity has increased by 246.2%. In 2011, approximately 1 in every 42,200 boys born was named Nicholai. STABLE Recent data shows the name is currently stable.