Nicolaas is a distinctive boys' name in United States, ranking #6171 in 1998 with 10 recorded births. The name reached its all-time peak in 1996 with 22 births ranking #3264. Since 1996, the popularity has decreased by 54.5%. In 1998, approximately 1 in every 191,132 boys born was named Nicolaas. FALLING Recent data shows the name is currently falling.