Nanci is a distinctive girls' name in United States, ranking #12740 in 2014 with 8 recorded births. The name reached its all-time peak in 2001 with 59 births ranking #2590. Since 1996, the popularity has decreased by 83.3%. In 2014, approximately 1 in every 223,242 girls born was named Nanci. FALLING Recent data shows the name is currently falling.