Lillyan is a distinctive girls' name in United States, ranking #2330 in 2015 with 80 recorded births. The name reached its all-time peak in 2009 with 193 births ranking #1265. Since 1996, the popularity has increased by 1,500.0%. In 2015, approximately 1 in every 22,308 girls born was named Lillyan. FALLING Recent data shows the name is currently falling.