Nelsy is a distinctive girls' name in United States, ranking #13235 in 2002 with 7 recorded births. The name reached its all-time peak in 2001 with 13 births ranking #8065. Since 1996, the popularity has increased by 40.0%. In 2002, approximately 1 in every 256,689 girls born was named Nelsy. FALLING Recent data shows the name is currently falling.