LUN or Lun may refer to:
*
Logical unit number, in computer storage
*
Lun, Croatia
*
Lown-e Kohneh or Lūn, Iran
*
Lün, a district in Mongolia's Central Province
* ISO 639-3 language code for the
Lunda language
*
Lun-class ekranoplan, a Soviet ground-effect vehicle
{{disambig, geo