Kacey is a moderately popular girls' name in England & Wales, ranking #162 in 2007 with 335 recorded births. The name reached its all-time peak in 2006 with 417 births ranking #130. Since 1996, the popularity has increased by 1,356.5%. In 2007, approximately 1 in every 914 girls born was named Kacey. FALLING Recent data shows the name is currently falling.