Lacy is a distinctive girls' name in England & Wales, ranking #1297 in 2012 with 25 recorded births. The name reached its all-time peak in 2007 with 36 births ranking #866. Since 1996, the popularity has increased by 400.0%. In 2012, approximately 1 in every 12,882 girls born was named Lacy. RISING Recent data shows the name is currently rising.