Nnenna is a distinctive girls' name in United States, ranking #8678 in 2002 with 12 recorded births. The name reached its all-time peak in 1996 with 14 births ranking #6641. Since 1996, the popularity has decreased by 14.3%. In 2002, approximately 1 in every 149,735 girls born was named Nnenna. FALLING Recent data shows the name is currently falling.