Nicolaus is a distinctive boys' name in United States, ranking #8039 in 2019 with 10 recorded births. The name reached its all-time peak in 1998 with 47 births ranking #2034. Since 1996, the popularity has decreased by 71.4%. In 2019, approximately 1 in every 179,336 boys born was named Nicolaus. STABLE Recent data shows the name is currently stable.