Kacey is a moderately popular girls' name in England & Wales, ranking #145 in 2004 with 358 recorded births. The name reached its all-time peak in 2006 with 417 births ranking #130. Since 1996, the popularity has increased by 1,456.5%. In 2004, approximately 1 in every 798 girls born was named Kacey. FALLING Recent data shows the name is currently falling.