Kacey is a moderately popular girls' name in England & Wales, ranking #323 in 2001 with 110 recorded births. The name reached its all-time peak in 2006 with 417 births ranking #130. Since 1996, the popularity has increased by 378.3%. In 2001, approximately 1 in every 2,436 girls born was named Kacey. FALLING Recent data shows the name is currently falling.