Lilliann is a distinctive girls' name in United States, ranking #7368 in 1998 with 13 recorded births. The name reached its all-time peak in 2009 with 75 births ranking #2523. Since 1996, the popularity has increased by 116.7%. In 1998, approximately 1 in every 135,915 girls born was named Lilliann. FALLING Recent data shows the name is currently falling.