Lillyan is a distinctive girls' name in United States, ranking #1265 in 2009 with 193 recorded births. The name reached its all-time peak in 2009 with 193 births ranking #1265. Since 1996, the popularity has increased by 3,760.0%. In 2009, approximately 1 in every 9,517 girls born was named Lillyan. FALLING Recent data shows the name is currently falling.