Nickolai is a distinctive boys' name in United States, ranking #3563 in 2015 with 31 recorded births. The name reached its all-time peak in 2015 with 31 births ranking #3563. Since 1996, the popularity has increased by 416.7%. In 2015, approximately 1 in every 61,815 boys born was named Nickolai. FALLING Recent data shows the name is currently falling.