The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Beavers (6 members)
- Beecham (1 member)
- Belcoot (1 member)
- Beltha (1 member)
- Berenique Nobilious (1 member)
- Bergen (1 member)
- Bernadette Egan (1 member)
- Betrayal effect cards (40 members)
- Biskiel people (3 members)
- Bob (1 member)
- Body equipment (38 members)
- Body equipment in Suikoden (21 members)
- Body equipment in Suikoden II (30 members)
- Boldon (1 member)
- Bolgan (1 member)
- Bonaparte (1 member)
- Borus Redrum (1 member)
- Boss enemies in Genso Suikoden Tsumugareshi Hyakunen no Toki (6 members)
- Boss enemies in Suikoden (15 members)
- Boss enemies in Suikoden II (18 members)