The name Lilou is a girl's name of French origin meaning "lily". Lilou and is often added to lists like Cool Girls' Names - Rare, Unique and Unusual and discussed in our forums with posts like "Which would you choose?".
From the experts:
Lilou is a charming, rarely heard import. Occitan is a language spoken in Provence, in the south of France, in which the suffix "ou" denotes a pet form — thus, Lilou as a short form of Liliane or its Occitan form Liliana or Liliano. Its popularity in France--where it's currently Number 12--can be traced to the 1997 film The Fifth Element.
Pronounced lee-loo, this is an enchanting option.