Defunct law enforcement agencies of Russia

The '''People's Commissariat for Internal Affairs (, ), abbreviated as NKVD''' (; ), was the interior ministry and secret police of the Soviet Union from 1934 to 1946. The agency was formed to succeed the Joint State Political Directorate (OGPU) secret police organization, and thus had a monopoly on intelligence and state security functions. The NKVD is known for carrying out political repression and the Great Purge under Joseph Stalin, as well as counterintelligence and other operations on the Eastern Front of World War II. The head of the NKVD was Genrikh Yagoda from 1934 to 1936, Nikolai Ye

The All-Russian Extraordinary Commission, abbreviated as VChK (), and commonly known as the Cheka (), was the first Soviet secret police organization. It was established on by the Council of People's Commissars of the Russian SFSR, and was led by Felix Dzerzhinsky. By the end of the Russian Civil War in 1922, the Cheka had at least 200,000 personnel.

Soviet national security agency (1922-1923)

Soviet national security agency (1923-1934)

Soviet state security apparatus, secret police and security service

security police in the Russian Empire

Soviet national security agency (1934-1943)

gendarmerie-like force of the Ministry of internal Affairs of Russia

former Russian security organization