French feminine form of Julien, from the Roman family name Julius meaning 'youthful.'
Julienne is the French feminine form of Julian, itself derived from the great Roman family name Julius — a name whose origins were already ancient when Julius Caesar bore it. The Romans connected Julius to Julus, the legendary son of Aeneas, grandson of Venus, and the mythic ancestor of the Julian dynasty.
Whether the root is divine lineage or, as scholars sometimes suggest, a simple adjective meaning "downy-bearded" (referring to a young man's first stubble), the name traveled from Rome into every corner of Europe that Latin touched. In medieval France and England, Julienne appeared as a devotional name linked to Saint Julian the Hospitaller and, more poignantly, to Julian of Norwich — the fourteenth-century English mystic who, writing as "a simple creature unlettered," produced the Revelations of Divine Love, the first book known to have been written in English by a woman. Julian of Norwich's famous phrase — "All shall be well, and all shall be well, and all manner of thing shall be well" — has given the name Julian and its variants a quality of hard-won consolation that lingers even when the association is not consciously known.
The culinary meaning of julienne — vegetables cut into thin, precise matchsticks — is a separate thread, likely named after a French chef, that adds an unexpected layer of artisanal craft to the name's associations. Julienne today is warmer and rarer than Juliette, more textured than Julia, carrying the elegance of the French tradition with a medievalist depth that rewards those who follow it back to its source.