Lilliann is a distinctive girls' name in United States, ranking #3971 in 2020 with 36 recorded births. The name reached its all-time peak in 2009 with 75 births ranking #2523. Since 1996, the popularity has increased by 500.0%. In 2020, approximately 1 in every 44,875 girls born was named Lilliann. FALLING Recent data shows the name is currently falling.