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