Lacy is a distinctive girls' name in United States, ranking #1043 in 2006 with 246 recorded births. The name reached its all-time peak in 2003 with 297 births ranking #826. Since 1996, the popularity has decreased by 10.9%. In 2006, approximately 1 in every 7,728 girls born was named Lacy. RISING Recent data shows the name is currently rising.