Nils is a distinctive boys' name in United States, ranking #4184 in 2018 with 25 recorded births. The name reached its all-time peak in 1999 with 39 births ranking #2329. Since 1996, the popularity has decreased by 26.5%. In 2018, approximately 1 in every 72,619 boys born was named Nils. FALLING Recent data shows the name is currently falling.