Njörun is listed (after Bil) as an ásynja within the Prose Edda book Skáldskaparmál. No further information outside of her name is provided there. In addition, the name occurs in kennings for women in poetry by Kormákr Ögmundarson, Hrafn Önundarson and Rögnvaldr Kali as well as in Krákumál and verses in Íslendinga saga, Njáls saga and Harðar saga.Eld-Njörun (meaning "fire-Njörun") occurs in women kennings in poetry by Gísli Súrsson and Björn Breiðvíkingakappi while hól-Njörun occurs in a somewhat dubious kenning in a stanza by Björn hítdælakappi.Draum-Njörun (meaning "dream-Njörun") is cited in the Poetic Edda poem Alvíssmál as a word from the language of the dwarves for the night. The same word occurs in Nafnaþulur.