Lilliam is a distinctive girls' name in United States, ranking #18432 in 2012 with 5 recorded births. This places Lilliam in the bottom 6% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2008 with 9 births ranking #12182. In 2012, approximately 1 in every 352,148 girls born was named Lilliam. RISING Recent data shows the name is currently rising.