Nelsy is a distinctive girls' name in United States, ranking #14410 in 2011 with 7 recorded births. This places Nelsy in the bottom 26% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2001 with 13 births ranking #8065. Since 1996, the popularity has increased by 40.0%. In 2011, approximately 1 in every 251,258 girls born was named Nelsy. FALLING Recent data shows the name is currently falling.