Lilliah is a distinctive girls' name in United States, ranking #10324 in 2006 with 11 recorded births. This places Lilliah in the bottom 49% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2014 with 15 births ranking #7912. In 2006, approximately 1 in every 172,825 girls born was named Lilliah. FALLING Recent data shows the name is currently falling.