Gefjun (or Gefjon, Gefion) is one of the Æsir in Norse mythology. This name could be from Old Norse geð fiá meaning "chaste" is one of the Asynjur in Norse mythology. She appears only a few times in surviving sources. Medieval sources talk of her mainly as a goddess of chastity. However, modern scholarship suggests that she may originally have been a fertility goddess connected with ritual plowing, and even that she was originally the same fertility goddess as Freyja.