The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Market socialism (3 members)
- Marshals of the Soviet Union (6 members)
- Marxian economics (1 member)
- Marxism (19 members)
- Marxism-Leninism (2 members)
- Marxism (essays) (0 members)
- Marxism–Leninism (11 members)
- Marxist-Leninist states (9 members)
- Marxist-Leninists (7 members)
- Marxist economics (10 members)
- Marxist economists (1 member)
- Marxist feminism (3 members)
- Marxist philosophers (2 members)
- Marxist revolutions (1 member)
- Marxist symbols (2 members)
- Marxist terminology (54 members)
- Marxist theorists (6 members)
- Marxist theory (24 members)
- Marxist theory memes (1 member)
- Marxists (25 members)