Lillyan is a distinctive girls' name in United States, ranking #3044 in 2002 with 48 recorded births. The name reached its all-time peak in 2009 with 193 births ranking #1265. Since 1996, the popularity has increased by 860.0%. In 2002, approximately 1 in every 37,434 girls born was named Lillyan. FALLING Recent data shows the name is currently falling.