Kacey is a moderately popular girls' name in England & Wales, ranking #204 in 2009 with 248 recorded births. The name reached its all-time peak in 2006 with 417 births ranking #130. Since 1996, the popularity has increased by 978.3%. In 2009, approximately 1 in every 1,264 girls born was named Kacey. FALLING Recent data shows the name is currently falling.