Lilli is a moderately popular girls' name in England & Wales, ranking #425 in 2007 with 97 recorded births. The name reached its all-time peak in 2004 with 106 births ranking #359. Since 1996, the popularity has increased by 546.7%. In 2007, approximately 1 in every 3,156 girls born was named Lilli. FALLING Recent data shows the name is currently falling.