Kacey is a moderately popular girls' name in England & Wales, ranking #232 in 2010 with 215 recorded births. The name reached its all-time peak in 2006 with 417 births ranking #130. Since 1996, the popularity has increased by 834.8%. In 2010, approximately 1 in every 1,493 girls born was named Kacey. FALLING Recent data shows the name is currently falling.