Nickolaus is a distinctive boys' name in United States, ranking #2643 in 2005 with 42 recorded births. The name reached its all-time peak in 1998 with 68 births ranking #1569. Since 1996, the popularity has decreased by 17.6%. In 2005, approximately 1 in every 47,551 boys born was named Nickolaus. RISING Recent data shows the name is currently rising.