Nikki is a distinctive girls' name in United States, ranking #973 in 2005 with 252 recorded births. The name reached its all-time peak in 1996 with 691 births ranking #385. Since 1996, the popularity has decreased by 63.5%. In 2005, approximately 1 in every 7,332 girls born was named Nikki. FALLING Recent data shows the name is currently falling.