The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- /r/Polandball (2 members)
- ALBAball (8 members)
- ASEANball (12 members)
- ASEANcoin (0 members)
- ASSRball (23 members)
- Abbacyballs of Holy Roman Empireball (3 members)
- Abbeyballs of Holy Roman Empireball (5 members)
- Abenaki Speaking Countryball (2 members)
- Abkhaz Speaking Countryball (11 members)
- Abkhaziaball (16 members)
- Aborlan Speaking Countryball (1 member)
- Acehnese Speaking Countryball (3 members)
- Achievement badges (22 members)
- Active Talk Pages (0 members)
- Activity Status Templates (0 members)
- Administrative Divisionballs (1 member)
- Administrative Divisionballs of Kosovoball (3 members)
- Administrative Divisionballs of Myanmar (1 member)
- Administrative Divisionballs of Serbiaball (9 members)
- Administrative divisionballs of pakistanball (1 member)
- Adriatic Sea (29 members)
- Adventist Christian (1 member)
- Adyghe Speaking Countryball (3 members)
- Afar Speaking Countryball (9 members)
- Afghanistanball (99 members)
- Africa (968 members)
- African Unionball (60 members)
- Afrikaans Speaking Countryball (41 members)
- Afro-Asiatic Languages (0 members)
- Agaw Speaking Countryball (1 member)
- Aghul Speaking Countryball (2 members)
- Akkadian Speaking Countryball (16 members)
- Aklanon Speaking Countryball (1 member)
- Akrortiri and Dhekeliaball (2 members)
- Akwamu Speaking Countryball (1 member)
- Alabamaball (6 members)
- Alandball (0 members)
- Alantic Ocean (2 members)
- Alaskaball (8 members)
- Alawite (9 members)
- Albaniaball (60 members)
- Albanian Speaking Countryball (57 members)
- Albertaball (3 members)
- Algarveball (1 member)
- Algeriaball (95 members)
- Algerian (1 member)
- Allied powers (0 members)
- Alps (10 members)
- Altai Speaking Countryball (3 members)
- Altaic (2 members)