Nickolaus is a distinctive boys' name in United States, ranking #6552 in 2012 with 13 recorded births. The name reached its all-time peak in 1998 with 68 births ranking #1569. Since 1996, the popularity has decreased by 74.5%. In 2012, approximately 1 in every 145,894 boys born was named Nickolaus. RISING Recent data shows the name is currently rising.