Lilli is a distinctive girls' name in England & Wales, ranking #3705 in 2025 with 6 recorded births. This places Lilli in the top 49% of ranked UK girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2004 with 106 births ranking #359. Since 1996, the popularity has decreased by 60.0%. In 2025, approximately 1 in every 42,214 girls born was named Lilli. FALLING Recent data shows the name is currently falling.