Ministry for State Security or Ministry of State Security (often abbreviated to MSS) may refer to:
- Ministry of State Security (China)
- Ministry of State Security (North Korea)
- Ministry for State Security (East Germany), more commonly known as the Stasi
- Ministry of State Security (Soviet Union)
- Ministry of State Security (Transnistria)
- Ministry of Public Security (Poland)
Similar agencies
- South African Bureau of State Security
- State Security Agency of the Republic of Belarus
- Committee for State Security in the People's Republic of Bulgaria
- KGB (Committee for State Security), in the Soviet Union
- Sigurimi (Directorate of State Security) in the Socialist People's Republic of Albania
- Main Directorate of State Security in the Soviet Union
- People's Commissariat for State Security (Soviet Union)
- State Security Council in South Africa
- Securitate (State Security Department) in Communist Romania
- UDBA (State Security Directorate) in the Socialist Federal Republic of Yugoslavia
- State Security Intelligence in Egypt
- Belgian State Security Service
- State Security Service Nigeria
- Reich Security Main Office (Nazi Germany)
See also
- Interior ministry
- Ministry of Public Security (disambiguation)
- State Security (disambiguation)
- Committee for State Security (disambiguation)
- State Security Service (disambiguation)