Lilli is a moderately popular girls' name in England & Wales, ranking #432 in 2005 with 86 recorded births. The name reached its all-time peak in 2004 with 106 births ranking #359. Since 1996, the popularity has increased by 473.3%. In 2005, approximately 1 in every 3,352 girls born was named Lilli. FALLING Recent data shows the name is currently falling.