# List of prime ministers of São Tomé and Príncipe

This article lists the prime ministers of São Tomé and Príncipe, an island country in the Gulf of Guinea off the western equatorial coast of Central Africa, since the establishment of the office of prime minister of Portuguese São Tomé and Príncipe in 1974. Leonel Mário d'Alva was the first person to hold the office, taking effect on 21 December 1974. The incumbent is Américo Ramos, having taken office on 12 January 2025.

## List of officeholders
### Prime minister of Portuguese São Tomé and Príncipe (1974–1975)

| No. | Portrait | Name (Birth–Death) | Election | Term of office | Term of office | Term of office | Political party |
| No. | Portrait | Name (Birth–Death) | Election | Took office | Left office | Time in office | Political party |
| 1 | | Leonel Mário d'Alva (born 1935) | — | 21 December 1974 | 12 July 1975 | 203 days | MLSTP–PSD |

### Prime ministers of São Tomé and Príncipe (1975–present)

| No. | Portrait | Name (Birth–Death) | Election | Term of office | Term of office | Term of office | Political party |
| No. | Portrait | Name (Birth–Death) | Election | Took office | Left office | Time in office | Political party |
| 1 | | Miguel Trovoada (born 1936) | 1975 | 12 July 1975 | 9 April 1979 | 3 years, 271 days | MLSTP–PSD |
| Post abolished (9 April 1979 – 8 January 1988) ||||||||
| 2 | | Celestino Rocha da Costa (1938–2010) | — | 8 January 1988 | 7 February 1991 | 3 years, 30 days | MLSTP–PSD |
| 3 | | Daniel Daio (born 1947) | 1991 | 7 February 1991 | 16 May 1992 | 1 year, 99 days | PCD |
| 4 | | Norberto Costa Alegre (born 1951) | — | 16 May 1992 | 2 July 1994 | 2 years, 47 days | PCD |
| 5 | | Evaristo Carvalho (1941–2022) | — | 7 July 1994 | 25 October 1994 | 110 days | ADI |
| 6 | | Carlos Graça (1931–2013) | 1994 | 25 October 1994 | 31 December 1995 | 1 year, 67 days | MLSTP–PSD |
| 7 | | Armindo Vaz d'Almeida (1953–2016) | — | 31 December 1995 | 19 November 1996 | 324 days | MLSTP–PSD |
| 8 | | Raul Bragança Neto (1946–2014) | — | 19 November 1996 | 5 January 1999 | 2 years, 47 days | MLSTP–PSD |
| 9 | | Guilherme Posser da Costa (born 1953) | 1998 | 5 January 1999 | 26 September 2001 | 2 years, 264 days | MLSTP–PSD |
| (5) | | Evaristo Carvalho (1941–2022) | — | 26 September 2001 | 28 March 2002 | 183 days | ADI |
| 10 | | Gabriel Costa (born 1954) | 2002 | 28 March 2002 | 7 October 2002 | 193 days | ADI |
| 11 | | Maria das Neves (born 1958) | — | 7 October 2002 | 18 September 2004 | 1 year, 347 days | MLSTP–PSD |
| 12 | | Damião Vaz d'Almeida (born 1951) | — | 18 September 2004 | 8 June 2005 | 263 days | MLSTP–PSD |
| 13 | | Maria do Carmo Silveira (born 1959) | — | 8 June 2005 | 21 April 2006 | 317 days | MLSTP–PSD |
| 14 | | Tomé Vera Cruz (born 1957) | 2006 | 21 April 2006 | 14 February 2008 | 1 year, 299 days | MDFM–PL |
| 15 | | Patrice Trovoada (born 1962) | — | 14 February 2008 | 22 June 2008 | 129 days | ADI |
| 16 | | Joaquim Rafael Branco (born 1953) | — | 22 June 2008 | 14 August 2010 | 2 years, 53 days | MLSTP–PSD |
| (15) | | Patrice Trovoada (born 1962) | 2010 | 14 August 2010 | 12 December 2012 | 2 years, 120 days | ADI |
| (10) | | Gabriel Costa (born 1954) | — | 12 December 2012 | 25 December 2014 | 1 year, 348 days | UDD |
| (15) | | Patrice Trovoada (born 1962) | 2014 | 25 December 2014 | 3 December 2018 | 4 years, 8 days | ADI |
| 17 | | Jorge Bom Jesus (born 1962) | 2018 | 3 December 2018 | 10 November 2022 | 3 years, 342 days | MLSTP–PSD |
| (15) | | Patrice Trovoada (born 1962) | 2022 | 11 November 2022 | 6 January 2025 | 2 years, 56 days | ADI |
| 18 | | Ilza Amado Vaz (born ?) | — | 9 January 2025 | 12 January 2025 | 3 days | ADI |
| 19 | | Américo Ramos (born 1957) | — | 12 January 2025 | Incumbent | 32 days | ADI |