| West Bengal CM | Tenure | Party |
|---|
| Bidhan Chandra Roy | 26 January 1950 – 1 July 1962 | Indian National Congress (INC) |
| Prafulla Chandra Sen | 9 July 1962 – 28 February 1967 | Indian National Congress (INC) |
| Ajoy Kumar Mukherjee | 1 March 1967 – 21 November 1967 | Bangla Congress (United Front) |
| Prafulla Chandra Ghosh | 21 November 1967 – 19 February 1968 | Independent (Progressive Democratic Front) |
| President’s Rule | 20 February 1968 – 25 February 1969 | N/A |
| Ajoy Kumar Mukherjee | 25 February 1969 – 16 March 1970 | Bangla Congress (United Front) |
| President’s Rule | 19 March 1970 – 2 April 1971 | N/A |
| Ajoy Kumar Mukherjee | 2 April 1971 – 28 June 1971 | Bangla Congress (Democratic Coalition) |
| President’s Rule | 29 June 1971 – 20 March 1972 | N/A |
| Siddhartha Shankar Ray | 20 March 1972 – 30 April 1977 | Indian National Congress (Progressive Democratic Alliance) |
| President’s Rule | 30 April 1977 – 20 June 1977 | N/A |
| Jyoti Basu | 21 June 1977 – 5 November 2000 | Communist Party of India (Marxist) |
| Buddhadeb Bhattacharya | 6 November 2000 – 13 May 2011 | Communist Party of India (Marxist) |
| Mamata Banerjee | 20 May 2011 – Present | All India Trinamool Congress (AITC) |
