Nicolaus is a distinctive boys' name in United States, ranking #4461 in 2006 with 21 recorded births. This places Nicolaus in the top 32% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1998 with 47 births ranking #2034. Since 1996, the popularity has decreased by 40.0%. In 2006, approximately 1 in every 97,863 boys born was named Nicolaus. STABLE Recent data shows the name is currently stable.