Lillyan is a distinctive girls' name in United States, ranking #5177 in 2021 with 25 recorded births. The name reached its all-time peak in 2009 with 193 births ranking #1265. Since 1996, the popularity has increased by 400.0%. In 2021, approximately 1 in every 65,588 girls born was named Lillyan. FALLING Recent data shows the name is currently falling.