Lillie is a distinctive girls' name in United States, ranking #676 in 2025 with 420 recorded births. The name reached its all-time peak in 2009 with 751 births ranking #426. Since 1996, the popularity has increased by 130.8%. In 2025, approximately 1 in every 3,827 girls born was named Lillie. STABLE Recent data shows the name is currently stable.