Nikki is a distinctive girls' name in England & Wales, ranking #649 in 2004 with 46 recorded births. The name reached its all-time peak in 1996 with 102 births ranking #337. Since 1996, the popularity has decreased by 54.9%. In 2004, approximately 1 in every 6,214 girls born was named Nikki. FALLING Recent data shows the name is currently falling.