The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- +Ultra (6 members)
- .hack anime and manga (2 members)
- .hack character redirects to lists (0 members)
- .hack video games (1 member)
- /pol/ phenomena (1 member)
- 100studio (1 member)
- 101 Dalmatians films (1 member)
- 11th arrondissement of Paris (2 members)
- 12 (number) (1 member)
- 1450s births (1 member)
- 1492 Pictures films (1 member)
- 1516 deaths (1 member)
- 1633 works (1 member)
- 1645 births (1 member)
- 16th-century Dutch painters (1 member)
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- 1757 establishments in the French colonial empire (1 member)
- 1764 births (1 member)
- 1770s births (1 member)
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- 17th-century etchings (1 member)
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