The Mathom-house was a museum-like building in Michel Delving where the Hobbits collected and displayed "mathoms": items for which they had no particular use. It was known to contain a store of weapons, and for a time also held Bilbo Baggins' mithril coat.
 Portrayal in adaptations
2007: The Lord of the Rings Online:
- The Mathom-house is the place where players can turn in reputation items to gain favor with the Hobbits of the Shire.