Society ("spolky") categories: M
- Maybach club
- Mercedes-Benz club
- Mercedes club
- modern pentathlon association
- men's club
- mycological group
- military club
- municipal club
- Moto Guzzi club
- men's association
- mountaineering club
- municipality restoration society
- music group
- monkey breeders club
- military tech club
- mountaineers club
- medical club
- monkey breeders' club
- Mustang club
- Mongolian association
- Mongols in Czech Republic club
- motor racing club
- movementarian association
- mycology circle
- McLaren club
- mountaineering section
- mycological club
- modelers club
- model makers' club
- MG club
- motorcyclists club
- mycology club
- movement
- Mazda club
- municipal association
- mountaineering association
- motorcycle club
- Mini club
- Mitsubishi club
- modern pentathlon club
- museum
- municipality restoration club
- mushroom growers club
- motorcycle association
- mycological association
- model makers' association
- martial arts club
- mushroom growers' club
- Maserati club
- music club
- music association