| Post: | Prime Minister |
| Body: | Czechoslovakia |
| Insignia: | Coat of arms of the Czech and Slovak Federal Republic.svg |
| Insigniasize: | 125px |
| Insigniacaption: | Coat of arms |
| Appointer: | The President |
| First: | Karel Kramář |
| Last: | Jan Stráský |
| Superseded By: |  Prime Minister of the Czech Republic Prime Minister of Slovakia |
The prime minister of Czechoslovakia (Czech: předseda vlády Československa, Slovak: predseda vlády Česko-Slovenska) was the head of government of Czechoslovakia, from the creation of the First Czechoslovak Republic in 1918 until the dissolution of the Czech and Slovak Federative Republic on 1 January 1993.
During periods when the post of the president of Czechoslovakia was vacant, the prime minister took on most presidential duties. However, the Czechoslovak constitutions do not define anything like a post of acting president.
| Portrait | Name | Ethnicity | Term of office | Political party | ||||
|---|---|---|---|---|---|---|---|---|
| Took office | Left office | Time in office | ||||||
| 1 | Karel Kramář | Czech | 14 November 1918 | 8 July 1919 | ČSND | |||
| 2 | Vlastimil Tusar | Czech | 8 July 1919 | 15 September 1920 | ČSSD | |||
| 3 | Jan Černý | Czech | 15 September 1920 | 26 September 1921 | Independent | |||
| 4 | Edvard Beneš | Czech | 26 September 1921 | 7 October 1922 | Independent | |||
| 5 | Antonín Švehla | Czech | 7 October 1922 | 18 March 1926 | RSZML | |||
| 6 | Jan Černý | Czech | 18 March 1926 | 12 October 1926 | Independent | |||
| 7 | Antonín Švehla | Czech | 12 October 1926 | 1 February 1929 | RSZML | |||
| 8 | František Udržal | Czech | 1 February 1929 | 24 October 1932 | RSZML | |||
| 9 | Jan Malypetr | Czech | 24 October 1932 | 5 November 1935 | RSZML | |||
| 10 | Milan Hodža | Slovak | 5 November 1935 | 22 September 1938 | RSZML | |||
| 11 | Jan Syrový | Czech | 22 September 1938 | 1 December 1938 | Independent | |||
| 12 | Rudolf Beran | Czech | 1 December 1938 | 15 March 1939 | RSZML / SNJ | |||
| 13 | Zdeněk Fierlinger | Czech | 5 April 1945 | 2 July 1946 | ČSSD | |||
| 14 | Klement Gottwald | Czech | 2 July 1946 | 15 June 1948 | KSČ | |||
| 15 | Antonín Zápotocký | Czech | 15 June 1948 | 14 March 1953 | KSČ | |||
| 16 | Viliam Široký | Slovak | 14 March 1953 | 20 September 1963 | KSČ | |||
| 17 | Jozef Lenárt | Slovak | 20 September 1963 | 8 April 1968 | KSČ | |||
| 18 | Oldřich Černík | Czech | 8 April 1968 | 28 January 1970 | KSČ | |||
| 19 | Lubomír Štrougal | Czech | 28 January 1970 | 12 October 1988 | KSČ | |||
| 20 | Ladislav Adamec | Czech | 12 October 1988 | 7 December 1989 | KSČ | |||
| 21 | Marián Čalfa | Slovak | 7 December 1989 | 2 July 1992 | KSČ / VPN / ODÚ | |||
| 22 | Jan Stráský | Czech | 2 July 1992 | 31 December 1992 | ODS | |||