Leikn (Old Norse: ) is a female jötunn in Norse mythology. The 10th-century skald Vetrliði Sumarliðason lists her among the jötnar killed by the thunder god Thor.
The Old Norse name Leikn has been translated as 'trickery'. Stemming from a Proto-Norse form reconstructed as *laikënà Â, it is related to the Old Norse leikni ('bewitchment'), and to the Old English scën-lãce ('sorceress').
The death of Leikn is mentioned in a lausavÃÂsa composed by Vetrliði Sumarliðason which praises Thor for having killed giants and giantesses:
Leikn's name was used by skalds in kennings. Hallfreðr vandræðaskáld thus uses the kenning "Leikn's horse" (hestr Leiknar) for a wolf (ÃÂláfsdrápa, <small>6</small>) and Hallvarðr háreksblesi calls the raven "hawk of Leikn of points" (haukr Leiknar odda) that is "hawk of valkyrie" (Knútsdrápa, <small>6</small>).
Leikn is also listed in the þulur.