The 18th Secretariat of the Communist Party of the Soviet Union was elected by the 18th Central Committee in the aftermath of the 18th Congress, held in 1939.
| Name (birth–death) | Took office | Left office | Duration | Note | |
|---|---|---|---|---|---|
(1878–1953) | 22 April 1939 | 14 October 1952 | — | ||
(1895–1971) | 22 April 1939 | 18 March 1946 | — | ||
(1905–1950) | 18 March 1946 | 28 January 1949 | The official explanation for his removal was that he was being "reassigned". | ||
(1896–1948) | 22 April 1939 | 31 August 1947 | Died in office of natural causes. | ||
(1902–1988) | 22 April 1939 | 6 May 1946 | Removed on Stalin's orders. | ||
| 1 July 1948 | 14 October 1952 | Reelected to the Secretariat at Stalin's proposal. | |||
(1894–1971) | 16 December 1949 | 14 October 1952 | — | ||
(1908–1989) | 5 June 1946 | 24 May 1947 | — | ||
(1902–1984) | 1 July 1948 | 14 October 1952 | — | ||
| Georgy Popov (1906–1968) | 18 March 1946 | 16 December 1949 | — | ||
(1901–1945) | 5 May 1941 | 10 May 1945 | Elected to the Secretariat at the 6th Plenary Session, but died of natural causes during his tenure. | ||
(1902–1982) | 24 May 1947 | 14 October 1952 | — |