Lacy is a distinctive boys' name in United States, ranking #7771 in 2006 with 10 recorded births. The name reached its all-time peak in 2003 with 16 births ranking #4945. Since 1996, the popularity has decreased by 23.1%. In 2006, approximately 1 in every 205,512 boys born was named Lacy. RISING Recent data shows the name is currently rising.