Lilou is a distinctive girls' name in United States, ranking #17027 in 2002 with 5 recorded births. This places Lilou 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 2016 with 41 births ranking #3748. In 2002, approximately 1 in every 359,364 girls born was named Lilou. FALLING Recent data shows the name is currently falling.