The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- All article disambiguation pages (9 members)
- All disambiguation pages (10 members)
- Animal Crossing (1 member)
- Ar-0 (0 members)
- Archived (4 members)
- Article message templates (1 member)
- Article message templates with missing parameters (4 members)
- Articles using small message boxes (1 member)
- Articles with short description (3 members)
- Babel - Users by language (28 members)
- Candidates for deletion (0 members)
- Da-0 (0 members)
- De (0 members)
- De-1 (0 members)
- En (3 members)
- En-2 (0 members)
- En-3 (0 members)
- En-N (3 members)
- Es (1 member)
- Es-1 (1 member)
- Es-2 (0 members)
- Es-3 (0 members)
- Es-4 (0 members)
- File message boxes (3 members)
- Fr (0 members)
- Fr-4 (0 members)
- General guides (16 members)
- He (0 members)
- He-2 (0 members)
- He-N (0 members)
- Help pages (3 members)
- Hidden categories (21 members)
- Hu (0 members)
- Hu-N (0 members)
- Imported from hacks.guide (11 members)
- Infoboxes without image alt text (10 members)
- It (0 members)
- It-5 (0 members)
- Ja (0 members)
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- Lua-based templates (3 members)
- Nintendo 3DS (7 members)
- Nintendo 3DS games (10 members)
- Nintendo 3DS guides (94 members)
- Nintendo 3DS homebrew (48 members)
- Nintendo 3DS information (21 members)
- Nintendo 3DS troubleshooting (23 members)
- Nintendo Switch (5 members)
- Nintendo Switch games (1 member)
- Nintendo Switch guides (2 members)