Nikolaus is a distinctive boys' name in United States, ranking #2288 in 2005 with 52 recorded births. The name reached its all-time peak in 1998 with 86 births ranking #1365. Since 1996, the popularity has decreased by 35.0%. In 2005, approximately 1 in every 38,407 boys born was named Nikolaus. RISING Recent data shows the name is currently rising.