The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Gretchen (1 member)
- Griffins (2 members)
- Growth items (1 member)
- Growth items in Suikoden (1 member)
- Guilleriga (1 member)
- Guin (2 members)
- Gunde (1 member)
- Gunter (1 member)
- Guntram (1 member)
- H link cards (206 members)
- Hafin (1 member)
- Haleth (1 member)
- Haruto (1 member)
- Haswar (1 member)
- Hazuki (1 member)
- Head equipment (22 members)
- Head equipment in Suikoden (10 members)
- Head equipment in Suikoden II (14 members)
- Headquarters Facilities (5 members)
- Heavy armor (3 members)
- Heavy armor in Suikoden (1 member)
- Heavy armor in Suikoden II (1 member)
- Helga (1 member)
- Hellion (1 member)
- Helms (5 members)
- Helms in Suikoden (3 members)
- Helms in Suikoden II (3 members)
- Helmut (1 member)
- Help (1 member)
- Hero (Genso Suikoden Tsumugareshi Hyakunen no Toki) (2 members)
- Hero (Suikoden) (14 members)
- Hero (Suikoden II) (12 members)
- Hero (Suikoden IV) (8 members)
- Hero (Suikoden V) (5 members)
- Hervey (2 members)
- Hidden categories (2 members)
- High resolution images (11 members)
- Hoi (1 member)
- Holy Harmonia cards (106 members)
- Hortensius (1 member)
- Hugo (Suikoden III) (2 members)
- Hugues (1 member)
- Humans (878 members)
- Humphrey Mintz (1 member)
- I link cards (138 members)
- Icas (1 member)
- Icon templates (20 members)
- Igor (1 member)
- Ilia Barcai (1 member)
- Illustrations by Fujita Kaori (1 member)