Lilliann is a distinctive girls' name in United States, ranking #3811 in 2025 with 39 recorded births. The name reached its all-time peak in 2009 with 75 births ranking #2523. Since 1996, the popularity has increased by 550.0%. In 2025, approximately 1 in every 41,212 girls born was named Lilliann. FALLING Recent data shows the name is currently falling.