The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Anime (13 members)
- Antagonists (7 members)
- Article Management Templates (1 member)
- Black Doggie House (0 members)
- Black Doggy House (21 members)
- Blog posts (1 member)
- Boarding School Juliet Wiki (1 member)
- Boarding School Juliet Wiki Featured articles (1 member)
- Boarding School Juliet Wiki Featured images (1 member)
- Browse (8 members)
- Candidates for deletion (0 members)
- Chapters (118 members)
- Characters (37 members)
- Disambiguations (0 members)
- Ending Song (2 members)
- Episode List (12 members)
- Female (16 members)
- Gallery (19 members)
- Header templates (1 member)
- Help (0 members)
- Housemasters (2 members)
- Images (0 members)
- Infobox templates (1 member)
- Male (13 members)
- Manga (135 members)
- Manga Volumes (17 members)
- Media (4 members)
- Music (3 members)
- Notice Templates (1 member)
- Notice templates (1 member)
- Opening Song (2 members)
- Places (7 members)
- Plot (6 members)
- Policy (3 members)
- Prefect (16 members)
- Protagonists (2 members)
- Rules (2 members)
- Stub templates (1 member)
- Stubs (3 members)
- TagSynced (3 members)
- Template documentation (0 members)
- Templates (5 members)
- Templates/reader flow (1 member)
- Templates/technical (2 members)
- Touwa (9 members)
- Videos (8 members)
- Volumes (15 members)
- West Duchy (8 members)
- White Cats House (14 members)
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