Lilien is of German origin and means 'lily'. This name has been popularized in France, particularly in Normandy where it's believed to have been introduced by returning soldiers from the Napoleonic Wars who admired the lily flowers they encountered abroad.
The name Lilien experienced a resurgence with seven births each in 2013 and 2017, while maintaining steady interest with five births annually in 1920, 2010, and 2022, and a slight uptick to six births in 2015. Overall, there were thirty-five babies named Lilien born between 1920 and 2022.