Nikki is a distinctive girls' name in United States, ranking #723 in 2001 with 337 recorded births. The name reached its all-time peak in 1996 with 691 births ranking #385. Since 1996, the popularity has decreased by 51.2%. In 2001, approximately 1 in every 5,343 girls born was named Nikki. FALLING Recent data shows the name is currently falling.