Feminine form of Evan (Welsh, 'young warrior') or elaboration of Eva (Hebrew, 'life').
Evanna is an Irish feminine name generally understood as a variant of Eithne or as a feminization of Evan, which itself derives from the Welsh form of John — ultimately reaching back to the Hebrew "Yohanan" and its meaning "God is gracious." In the Irish tradition, names built on similar phonetic ground carry the lyrical, vowel-rich quality that marks Gaelic nomenclature, and Evanna fits naturally into that musical lineage. Some scholars also connect it to the older Irish name Aoibheann (pronounced roughly "EE-van"), meaning "beautiful sheen" or "radiant form."
The name stepped onto a global stage when Irish actress Evanna Lynch was cast as Luna Lovegood in the Harry Potter film series, a role she earned in an open audition as a devoted young fan of the books. Her portrayal of the dreamily eccentric, fiercely loyal Ravenclaw became one of the series' most beloved, and Luna's particular brand of gentle otherworldliness now permanently colors how many people receive the name Evanna. It is a remarkable case of a relatively obscure name acquiring a rich cultural afterimage through a single iconic performance.
Beyond the Potter connection, Evanna retains its quietly Irish character — rarely heard outside Ireland before Lynch made it famous, now recognized internationally while still feeling genuinely uncommon. It occupies a appealing middle ground: Celtic authenticity without the pronunciation challenges of more archaic Irish names, a soft romantic sound, and the quiet distinction of a name not yet absorbed into mainstream fashion. For parents drawn to Irish heritage or simply to names that feel both ancient and fresh, Evanna is a compelling choice.