Lacy is a distinctive girls' name in United States, ranking #1443 in 2013 with 156 recorded births. The name reached its all-time peak in 2003 with 297 births ranking #826. Since 1996, the popularity has decreased by 43.5%. In 2013, approximately 1 in every 11,246 girls born was named Lacy. RISING Recent data shows the name is currently rising.