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Léna is a French and Hungarian short form of Hélène or Elena, themselves derived from the ancient Greek name Helénē, whose root is debated but most commonly linked to the Greek word for torch or light, or alternatively to Helenē, denoting the Greek people. The name gained widespread use across Europe through the legendary figure of Helen of Troy and later through the veneration of Saint Helena, mother of the Roman emperor Constantine the Great. Léna functions as an independent given name in modern French and Hungarian usage while remaining closely tied to its longer forms. Related names include Helena, Elena, Eleanor, and the Scandinavian Lena.