The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- 2010 Nendo (1 member)
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- Activities (2 members)
- Aiko Discography (2 members)
- Aiko Yamaide (3 members)
- Albums (2 members)
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- Browse (1 member)
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- Clubs (9 members)
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- Discography (3 members)
- Graduates (25 members)
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- Lyrics (93 members)
- Main Page Templates (1 member)
- Members (14 members)
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- Sakura Gakuin (4 members)
- Sakura Gakuin Lyrics (80 members)
- Sakura Gakuin Wiki (1 member)
- Singles (4 members)
- Site Policy (1 member)
- Songs (2 members)
- Staff (2 members)
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- Student Council President (10 members)
- Sub-Unit Lyrics (2 members)
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- Templates (3 members)
- Videos (18 members)