Lacy is a distinctive girls' name in United States, ranking #1248 in 2009 with 198 recorded births. The name reached its all-time peak in 2003 with 297 births ranking #826. Since 1996, the popularity has decreased by 28.3%. In 2009, approximately 1 in every 9,277 girls born was named Lacy. RISING Recent data shows the name is currently rising.