Lillia is a distinctive girls' name in England & Wales, ranking #586 in 2009 with 65 recorded births. The name reached its all-time peak in 2007 with 98 births ranking #419. Since 1996, the popularity has increased by 2,066.7%. In 2009, approximately 1 in every 4,821 girls born was named Lillia. FALLING Recent data shows the name is currently falling.