Niels is a distinctive boys' name in United States, ranking #12042 in 2009 with 6 recorded births. The name reached its all-time peak in 2001 with 21 births ranking #3940. Since 1996, the popularity has decreased by 57.1%. In 2009, approximately 1 in every 330,551 boys born was named Niels. RISING Recent data shows the name is currently rising.