Lacy is a distinctive girls' name in United States, ranking #1444 in 2015 with 160 recorded births. The name reached its all-time peak in 2003 with 297 births ranking #826. Since 1996, the popularity has decreased by 42.0%. In 2015, approximately 1 in every 11,154 girls born was named Lacy. RISING Recent data shows the name is currently rising.