Nikki is a moderately popular girls' name in England & Wales, ranking #439 in 1997 with 68 recorded births. The name reached its all-time peak in 1996 with 102 births ranking #337. Since 1996, the popularity has decreased by 33.3%. In 1997, approximately 1 in every 4,312 girls born was named Nikki. FALLING Recent data shows the name is currently falling.