Niels is a distinctive boys' name in United States, ranking #5073 in 2002 with 15 recorded births. This places Niels in the top 41% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2001 with 21 births ranking #3940. In 2002, approximately 1 in every 129,431 boys born was named Niels. RISING Recent data shows the name is currently rising.