Lilly is a moderately popular girls' name in United States, ranking #252 in 2025 with 1,218 recorded births. The name reached its all-time peak in 2010 with 2,890 births ranking #106. Since 1996, the popularity has increased by 420.5%. In 2025, approximately 1 in every 1,320 girls born was named Lilly. STABLE Recent data shows the name is currently stable.
Lilly is a familiar alternative spelling of Lily with the same floral meaning. It feels bright and friendly, with a slightly fuller visual look.
The spelling gained traction as parents personalised classic flower names without changing the pronunciation. It remains one of the most recognisable Lily-family variants.