Variant spelling of Liliane, the French form of Lillian, from Latin lilium meaning "lily."
Lilliane is the French form of Lillian, and its etymology ultimately flowers in the lily itself — "lilium" in Latin, adopted from the Greek "leirion," a flower whose symbolic vocabulary is among the richest in Western culture. The lily signified purity and divine favor in Christian iconography, most prominently through its association with the Virgin Mary and the Annunciation; in paintings from Fra Angelico to Leonardo, the archangel Gabriel invariably carries a white lily to Mary, and the flower became the visual shorthand for unblemished virtue. The name's French articulation — with that final "e" sounding the last syllable — gives Lilliane a stateliness that the anglicized Lillian softens.
It was used by French and Belgian noble families in the nineteenth century and carried through the twentieth with the kind of assured elegance associated with names that have never needed to chase trends. The actress Lilliane Montevecchi, a French-Italian performer known for Broadway's "Nine," brought the name briefly into American theatrical consciousness in the 1980s. Today Lilliane occupies an appealing position: it feels simultaneously vintage and refined, recognizable but not overused.
As Lily and Lilian enjoy considerable popularity in English-speaking countries, Lilliane offers parents a way to access that same floral tradition with greater specificity and formal weight. The name wears well across ages — plausible on a newborn, authoritative on an adult, and graceful on an elder — which is the quiet test every lasting name must pass.