Lillian is a popular girls' name in United States, ranking #51 in 2021 with 4,327 recorded births. The name reached its all-time peak in 2012 with 7,171 births ranking #25. Since 1996, the popularity has increased by 283.9%. In 2021, approximately 1 in every 379 girls born was named Lillian. STABLE Recent data shows the name is currently stable.