Udûn, the Depth, is a concept usually associated with Hell. It may refer to:
- Udûn (stronghold), Sindarin for "Utumno", Morgoth's stronghold before the First Age; Hell.
- Udûn (valley), a valley in northern Mordor.
|This disambiguation page is a list of articles associated with the same title. This is in accordance with Tolkien Gateway's Naming policy.|
If an internal link referred you to this page, you may wish to change the link to point directly to the intended article.