Nils is a distinctive boys' name in United States, ranking #3974 in 2012 with 26 recorded births. The name reached its all-time peak in 1999 with 39 births ranking #2329. Since 1996, the popularity has decreased by 23.5%. In 2012, approximately 1 in every 72,947 boys born was named Nils. FALLING Recent data shows the name is currently falling.