Lillyan is a distinctive girls' name in United States, ranking #1575 in 2007 with 144 recorded births. The name reached its all-time peak in 2009 with 193 births ranking #1265. Since 1996, the popularity has increased by 2,780.0%. In 2007, approximately 1 in every 13,350 girls born was named Lillyan. FALLING Recent data shows the name is currently falling.