Idun is an alternate spelling of Iðunn, a goddess in Norse mythology.

It may also refer to:

• alternate spelling of Aydoun, a Jordanian city
• Idun Peak, Antarctica
• Idun Township, Aitkin County, Minnesota

• Idun Reiten (born 1942), Norwegian mathematics professor
• Connor Idun (born 2000), Australian rules footballer
• James Idun (born 1963), Ghanaian sprinter

• Idun Industri, a Norwegian company
• Livsforsikringsselskapet Idun, a Norwegian company
• Idun (magazine), a Swedish magazine
• Viking Idun, a Viking Cruises ship
• Idun (horse), American racehorse
• Idun language of Nigeria
• Idun (icebreaker), a Swedish icebreaker

This disambiguation page lists articles associated with the title Idun.
If an internal link led you here, you may wish to change the link to point directly to the intended article.