Lillyan is a distinctive girls' name in United States, ranking #1826 in 2005 with 107 recorded births. The name reached its all-time peak in 2009 with 193 births ranking #1265. Since 1996, the popularity has increased by 2,040.0%. In 2005, approximately 1 in every 17,268 girls born was named Lillyan. FALLING Recent data shows the name is currently falling.