The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Yuki Himezuru (49 members)
- Yukiko Amagi (36 members)
- Yumi (60 members)
- Yuuki Kato (12 members)
- Yuuki Terumi (532 members)
- Yuzuriha (27 members)
- Zara (2 members)
- Zawango (1 member)
- Zeroth Squadron (1 member)
- Zunchimo (3 members)