Nikki is a distinctive girls' name in United States, ranking #585 in 2000 with 443 recorded births. The name reached its all-time peak in 1996 with 691 births ranking #385. Since 1996, the popularity has decreased by 35.9%. In 2000, approximately 1 in every 4,099 girls born was named Nikki. FALLING Recent data shows the name is currently falling.