Melusine

thumbnail|upright=1.3|Melusine's secret discovered, from Le Roman de Mélusine by Jean d'Arras, . Bibliothèque nationale de France.

Mélusine () or Melusine or Melusina is a figure of European folklore, a female spirit of fresh water in a holy well or river. She is usually depicted as a woman who is a serpent or fish from the waist down (much like a lamia or a mermaid). She is also sometimes illustrated with wings, two tails, or both. Her legends are especially connected with the northern and western areas of France, Luxembourg, and the Low Countries.