Nikolaus is a distinctive boys' name in United States, ranking #4504 in 2015 with 22 recorded births. The name reached its all-time peak in 1998 with 86 births ranking #1365. Since 1996, the popularity has decreased by 72.5%. In 2015, approximately 1 in every 87,103 boys born was named Nikolaus. RISING Recent data shows the name is currently rising.