Lacy is a distinctive girls' name in England & Wales, ranking #2746 in 2000 with 5 recorded births. This places Lacy in the bottom 47% of ranked UK girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2007 with 36 births ranking #866. In 2000, approximately 1 in every 54,635 girls born was named Lacy. RISING Recent data shows the name is currently rising.