Kacey is a moderately popular girls' name in England & Wales, ranking #227 in 2011 with 225 recorded births. The name reached its all-time peak in 2006 with 417 births ranking #130. Since 1996, the popularity has increased by 878.3%. In 2011, approximately 1 in every 1,428 girls born was named Kacey. FALLING Recent data shows the name is currently falling.