Niel is a distinctive boys' name in United States, ranking #10422 in 2018 with 7 recorded births. This places Niel in the bottom 26% 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 13 births ranking #5585. Since 1996, the popularity has decreased by 30.0%. In 2018, approximately 1 in every 259,353 boys born was named Niel. FALLING Recent data shows the name is currently falling.