# List of prime ministers of Portugal

* Top left: Pedro de Sousa Holstein, 1st Duke of Palmela was the first prime minister to be referred as such.
* Top right: António de Oliveira Salazar was the longest serving head of government.
* Bottom left: Aníbal Cavaco Silva was the longest serving prime minister in democracy.
* Bottom right: Luís Montenegro is the incumbent prime minister.
The prime minister of the Portuguese Republic (Portuguese: primeiro-ministro da República Portuguesa) is the head of the Government of Portugal. The officeholder coordinates the actions of all ministers, represents the Government as a whole, reports their actions and is accountable to the Assembly of the Republic, in addition to keeping the president of the Republic informed.
There is no limit to the number of mandates as prime minister. They are appointed by the president of the Republic, after the legislative elections and after an audience with every leader of a party represented at the Assembly. It is usual for the leader of the party which receives a plurality of votes in the elections to be named prime minister.
The official residence of the prime minister is a mansion next to São Bento Palace, which, in confusion, is also often called "São Bento Palace", although many prime ministers did not live in the palace during their full mandate.

## History

The origins of present office of prime minister of Portugal fall back to the beginning of the Portuguese monarchy in the 12th century. Typically, a senior official of the king of Portugal prevailed over the others, ensuring the coordination of the administration of the kingdom as a kind of prime minister. Throughout history, the prominent position fell successively on the Mayor of the Palace (Portuguese Mordomo-Mor), on the Chancellor (Chanceler-Mor), on the King's Private Secretary (Escrivão da Puridade) and on the Secretary of State (Secretário de Estado).
In 1736, three offices of secretary of state were created, with the Secretary of State of the Internal Affairs of the Kingdom (Secretário de Estado dos Negócios Interiores do Reino) occupying a prominent position over the others.
Since the 1820 Liberal Revolution of Porto, liberalism and parliamentarism were installed in the country. In the first liberal period, there were three to six secretaries of state with equal position in the hierarchy, but with the Secretary the Internal Affairs of the Kingdom (usually known by Minister of the Kingdom) continuing to occupy a prominent position. Occasionally there was a Minister Assistant to the Dispatch (Ministro Assistante ao Despacho), a coordinator of all secretaries of state, and with a post similar to that of a prime minister. After a brief absolutistic restoration, the second liberalism started. With the beginning of the Constitutional Monarchy, the office of President of the Council of Ministers (Presidente do Conselho de Ministros) was created. The presidents of the council were clearly the heads of government of the kingdom, holding the executive power that absolute monarchs had, but were restricted by the controlling power of the National Congress.
With the advent of the Republic in the 5 October 1910 revolution, the head of government was renamed President of the Ministry (Presidente do Ministério). During this period the heads of government were under the strong power of the parliament and often fell due to parliamentary turmoils and social instability.
With the 28 May 1926 coup d'état, and eventually, after the formation of the Estado Novo quasi-fascist dictatorial regime of António de Oliveira Salazar, the prime minister was again named President of the Council of Ministers, and was nominally the most important figure in the country. First Salazar and then Marcello Caetano occupied this post for almost 42 years.
With the Carnation Revolution came the prime minister, which replaced the president of the council.

## Prime ministers

The official numbering of the prime ministers starts with the first president of the Council of Ministers of the constitutional monarchy. A second column is added after the establishment of the Republic, numbering the prime ministers from there to the present day. Another column is added for the numbering inside the three regimes: First Republic, the Second Republic and Third Republic, with a fourth column in the Second Republic to mark the numbering of prime ministers since the 1926 revolution that established the National Dictatorship and since the replacement of the National Dictatorship with the Salazarist Estado Novo. In the Third Republic, a fourth column is also used to distinguish the prime ministers of the provisional governments that existed during the period immediately following the Carnation Revolution of 1974 from the prime ministers that assumed office after the entry into force of Portugal's current democratic Constitution adopted 1976.
At the right hand side, a column indicates the official numbering of the Constitutional Governments. The numbering of the Constitutional Governments is not the same as the numbering of prime ministers since the Constitution because, whenever elections for a new parliament take place, a new constitutional government is installed, even if the prime minister remains the same; however, there is also a change of constitutional government when the prime minister is replaced, even if in mid-parliament. So, because some prime ministers managed to remain in office after fresh elections (thus serving as prime ministers under more than one parliament), there are more constitutional governments than there are prime ministers.
The colors indicate the political affiliation of each prime minister.
No party/independent  Chartist/Chamorro  Chamorro  Septemberist  Regenerator  Historic  Reformist  Regenerator/Historic  Progressist  Liberal Regenerator  Republican  Democratic  National Republican/Sidonist  Republican Liberal  Reconstitution Party  Nationalist Republican  Democratic Leftwing Republican  National Union/People's National Action  Democratic Renewal Party  Socialist  Social Democratic  Democratic and Social Centre

### Constitutional Monarchy – Second Liberalism (1834–1910)

| No. | Name (Birth–Death) | Term of office — Electoral mandates | Term of office — Electoral mandates | Political party | Government | Monarch (Reign) |
| 1 | Pedro de Sousa Holstein, Marquis of Palmela (1781–1850) | 24 September 1834 | 4 May 1835 | Chartist/"Chamorro" | 1st Dev. | Maria II (1834–1853) and Fernando II (1837–1853) |
| Maria II (1834–1853) and Fernando II (1837–1853) ||
| Maria II (1834–1853) and Fernando II (1837–1853) |||
| 2 | Vitório Maria de Sousa Coutinho, Count of Linhares (1790–1857) | 4 May 1835 | 27 May 1835 | "Chamorro" | 1st Dev. | Maria II (1834–1853) and Fernando II (1837–1853) |
| Maria II (1834–1853) and Fernando II (1837–1853) ||
| 3 | João Carlos de Saldanha Oliveira e Daun, Marquis of Saldanha (1790–1876) | 27 May 1835 | 18 November 1835 | Independent | 2nd Dev. | Maria II (1834–1853) and Fernando II (1837–1853) |
| Maria II (1834–1853) and Fernando II (1837–1853) ||
| Maria II (1834–1853) and Fernando II (1837–1853) ||||
| 4 | José Jorge Loureiro (1791–1860) | 18 November 1835 | 20 April 1836 | Independent | 3rd Dev. | Maria II (1834–1853) and Fernando II (1837–1853) |
| Maria II (1834–1853) and Fernando II (1837–1853) ||
| Maria II (1834–1853) and Fernando II (1837–1853) ||||
| 5 | António José Severim de Noronha, Duke of Terceira and Marquis of Vila Flor (1792–1860) | 20 April 1836 | 10 September 1836 | "Chamorro" | 4th Dev. | Maria II (1834–1853) and Fernando II (1837–1853) |
| Maria II (1834–1853) and Fernando II (1837–1853) ||
| Maria II (1834–1853) and Fernando II (1837–1853) ||||
| 6 | José da Gama Carneiro e Sousa, Count of Lumiares (1788–1849) | 10 September 1836 | 4 November 1836 | Septemberist | 1st Set. | Maria II (1834–1853) and Fernando II (1837–1853) |
| Maria II (1834–1853) and Fernando II (1837–1853) ||
| Maria II (1834–1853) and Fernando II (1837–1853) ||||
| — | José Bernardino de Portugal e Castro, Marquis of Valença and Count of Vimioso (1780–1840) (did not take office) | 4 November 1836 | 5 November 1836 | Independent | — | Maria II (1834–1853) and Fernando II (1837–1853) |
| Maria II (1834–1853) and Fernando II (1837–1853) ||
| Maria II (1834–1853) and Fernando II (1837–1853) ||||
| 7 | Bernardo de Sá Nogueira de Figueiredo, Viscount of Sá da Bandeira (1795–1876) | 5 November 1836 | 1 June 1837 | Septemberist | 2nd Set. | Maria II (1834–1853) and Fernando II (1837–1853) |
| Maria II (1834–1853) and Fernando II (1837–1853) ||
| Maria II (1834–1853) and Fernando II (1837–1853) ||||
| 8 | António Dias de Oliveira (1804–1863) | 1 June 1837 | 2 August 1837 | Septemberist | 3rd Set. | Maria II (1834–1853) and Fernando II (1837–1853) |
| Maria II (1834–1853) and Fernando II (1837–1853) ||
| Maria II (1834–1853) and Fernando II (1837–1853) ||||
| 9 | Bernardo de Sá Nogueira de Figueiredo, Viscount of Sá da Bandeira (2nd time) (1795–1876) | 2 August 1837 | 18 April 1839 | Septemberist | 4th Set. | Maria II (1834–1853) and Fernando II (1837–1853) |
| Maria II (1834–1853) and Fernando II (1837–1853) ||
| Maria II (1834–1853) and Fernando II (1837–1853) ||||
| 10 | Rodrigo Pinto Pizarro de Almeida Carvalhais, Baron of Ribeira de Sabrosa (1788–1841) | 18 April 1839 | 26 November 1839 | Septemberist | 5th Set. | Maria II (1834–1853) and Fernando II (1837–1853) |
| Maria II (1834–1853) and Fernando II (1837–1853) ||
| Maria II (1834–1853) and Fernando II (1837–1853) ||||
| 11 | José Lúcio Travassos Valdez, Count of Bonfim (1787–1862) | 26 November 1839 | 9 June 1841 | Septemberist | 6th Set. | Maria II (1834–1853) and Fernando II (1837–1853) |
| Maria II (1834–1853) and Fernando II (1837–1853) ||
| Maria II (1834–1853) and Fernando II (1837–1853) ||||
| 12 | Joaquim António de Aguiar (1792–1884) | 9 June 1841 | 7 February 1842 | Septemberist | 7th Set. | Maria II (1834–1853) and Fernando II (1837–1853) |
| Maria II (1834–1853) and Fernando II (1837–1853) ||
| Maria II (1834–1853) and Fernando II (1837–1853) ||||
| 13 | Pedro de Sousa Holstein, Marquis of Palmela (2nd time) (1781–1850) | 7 February 1842 | 9 February 1842 | Independent | G.E. | Maria II (1834–1853) and Fernando II (1837–1853) |
| Maria II (1834–1853) and Fernando II (1837–1853) ||
| Maria II (1834–1853) and Fernando II (1837–1853) ||||
| 14 | António José Severim de Noronha, Duke of Terceira and Marquis of Vila Flor (2nd time) (1792–1860) | 9 February 1842 | 20 May 1846 | Chartist | 1st R. Cart. | Maria II (1834–1853) and Fernando II (1837–1853) |
| Maria II (1834–1853) and Fernando II (1837–1853) ||
| Maria II (1834–1853) and Fernando II (1837–1853) ||||
| 15 | Pedro de Sousa Holstein, Marquis of Palmela (3rd time) (1781–1850) | 20 May 1846 | 6 October 1846 | Chartist | 2nd R. Cart. | Maria II (1834–1853) and Fernando II (1837–1853) |
| Maria II (1834–1853) and Fernando II (1837–1853) ||
| Maria II (1834–1853) and Fernando II (1837–1853) ||||
| 16 | João Carlos de Saldanha Oliveira e Daun, Duke of Saldanha (2nd time) (1790–1876) | 6 October 1846 | 18 June 1849 | Chartist | 3rd R. Cart. | Maria II (1834–1853) and Fernando II (1837–1853) |
| Maria II (1834–1853) and Fernando II (1837–1853) ||
| Maria II (1834–1853) and Fernando II (1837–1853) ||||
| 17 | António Bernardo da Costa Cabral, Count of Tomar (1803–1889) | 18 June 1849 | 26 April 1851 | Chartist | 4th R. Cart. | Maria II (1834–1853) and Fernando II (1837–1853) |
| Maria II (1834–1853) and Fernando II (1837–1853) ||
| Maria II (1834–1853) and Fernando II (1837–1853) ||||
| 18 | António José Severim de Noronha, Duke of Terceira and Marquis of Vila Flor (3rd time) (1792–1860) | 26 April 1851 | 1 May 1851 | Regenerator | 5th R. Cart. | Maria II (1834–1853) and Fernando II (1837–1853) |
| Maria II (1834–1853) and Fernando II (1837–1853) ||
| Maria II (1834–1853) and Fernando II (1837–1853) ||||
| 19 | João Carlos de Saldanha Oliveira e Daun, Duke of Saldanha (3rd time) (1790–1876) | 1 May 1851 | 6 June 1856 | Regenerator | 1st Reg. | Maria II (1834–1853) and Fernando II (1837–1853) |
| 19 | João Carlos de Saldanha Oliveira e Daun, Duke of Saldanha (3rd time) (1790–1876) | 1851, 1852 | 1851, 1852 | Regenerator | 1st Reg. | Pedro V (1853–1861) |
| Pedro V (1853–1861) ||||
| 20 | Nuno José Severo de Mendonça Rolim de Moura Barreto, Duke of Loulé (1804–1875) | 6 June 1856 | 16 March 1859 | Historic | 2nd Reg. | Pedro V (1853–1861) |
| Pedro V (1853–1861) ||
| Pedro V (1853–1861) ||||
| 21 | António José Severim de Noronha, Duke of Terceira and Marquis of Vila Flor (4th time) (1792–1860) | 16 March 1859 | 1 May 1860 (died) | Regenerator | 3rd Reg. | Pedro V (1853–1861) |
| Pedro V (1853–1861) ||
| Pedro V (1853–1861) |||
| 22 | Joaquim António de Aguiar (2nd time) (1792–1884) | 1 May 1860 | 4 July 1860 | Regenerator | 3rd Reg. | Pedro V (1853–1861) |
| Pedro V (1853–1861) ||
| 23 | Nuno José Severo de Mendonça Rolim de Moura Barreto, Duke of Loulé (2nd time) (1804–1875) | 4 July 1860 | 17 April 1865 | Historic | 4th Reg. | Pedro V (1853–1861) |
| 23 | Nuno José Severo de Mendonça Rolim de Moura Barreto, Duke of Loulé (2nd time) (1804–1875) | 1861, 1864 | 1861, 1864 | Historic | 4th Reg. | Luis I (1861–1889) |
| Luis I (1861–1889) ||||
| 24 | Bernardo de Sá Nogueira de Figueiredo, Marquis of Sá da Bandeira (3rd time) (1795–1876) | 17 April 1865 | 4 September 1865 | Reformist | 5th Reg. | Luis I (1861–1889) |
| Luis I (1861–1889) ||
| 25 | Joaquim António de Aguiar (3rd time) (1792–1884) | 4 September 1865 | 4 January 1868 | Regenerator (with the Historic Party) | 6th Reg. | Luis I (1861–1889) |
| Luis I (1861–1889) ||
| Luis I (1861–1889) ||||
| 26 | António José de Ávila, Duke of Ávila and Bolama (1807–1881) | 4 January 1868 | 22 July 1868 | Independent (with Reformists) | 7th Reg. | Luis I (1861–1889) |
| Luis I (1861–1889) ||
| Luis I (1861–1889) ||||
| 27 | Bernardo de Sá Nogueira de Figueiredo, Marquis of Sá da Bandeira (4th time) (1795–1876) | 22 July 1868 | 11 August 1869 | Reformist | 8th Reg. | Luis I (1861–1889) |
| Luis I (1861–1889) ||
| Luis I (1861–1889) ||||
| 28 | Nuno José Severo de Mendonça Rolim de Moura Barreto, Duke of Loulé (3rd time) (1804–1875) | 11 August 1869 | 19 May 1870 | Historic (with Reformists) | 9th Reg. | Luis I (1861–1889) |
| Luis I (1861–1889) ||
| Luis I (1861–1889) ||||
| 29 | João Carlos de Saldanha Oliveira e Daun, Duke of Saldanha (4th time) (1790–1876) | 19 May 1870 | 29 August 1870 | Regenerator | 10th Reg. | Luis I (1861–1889) |
| Luis I (1861–1889) ||
| Luis I (1861–1889) ||||
| 30 | Bernardo de Sá Nogueira de Figueiredo, Marquis of Sá da Bandeira (5th time) (1795–1876) | 29 August 1870 | 29 October 1870 | Reformist | 11th Reg. | Luis I (1861–1889) |
| Luis I (1861–1889) ||
| Luis I (1861–1889) ||||
| 31 | António José de Ávila, Marquis of Ávila (2nd time) (1807–1881) | 29 October 1870 | 13 September 1871 | Reformist | 12th Reg. | Luis I (1861–1889) |
| Luis I (1861–1889) ||
| 32 | António Maria de Fontes Pereira de Melo (1819–1887) | 13 September 1871 | 6 March 1877 | Regenerator | 13th Reg. | Luis I (1861–1889) |
| Luis I (1861–1889) ||
| Luis I (1861–1889) ||||
| 33 | António José de Ávila, Marquis of Ávila (3rd time) (1807–1881) | 6 March 1877 | 26 January 1878 | Reformist | 14th Reg. | Luis I (1861–1889) |
| Luis I (1861–1889) ||
| 34 | António Maria de Fontes Pereira de Melo (2nd time) (1819–1887) | 26 January 1878 | 29 May 1879 | Regenerator | 15th Reg. | Luis I (1861–1889) |
| Luis I (1861–1889) ||
| Luis I (1861–1889) ||||
| 35 | Anselmo José Braamcamp de Almeida Castelo Branco (1817–1885) | 29 May 1879 | 23 March 1881 | Progressist | 16th Reg. | Luis I (1861–1889) |
| Luis I (1861–1889) ||
| Luis I (1861–1889) ||||
| 36 | António Rodrigues Sampaio (1806–1882) | 23 March 1881 | 14 November 1881 | Regenerator | 17th Reg. | Luis I (1861–1889) |
| Luis I (1861–1889) ||
| 37 | António Maria de Fontes Pereira de Melo (3rd time) (1819–1887) | 14 November 1881 | 16 February 1886 | Regenerator | 17th Reg. | Luis I (1861–1889) |
| Luis I (1861–1889) ||
| Luis I (1861–1889) ||||
| 38 | José Luciano de Castro Pereira Côrte-Real (1834–1914) | 16 February 1886 | 14 January 1890 | Progressist | 18th Reg. | Luis I (1861–1889) |
| 38 | José Luciano de Castro Pereira Côrte-Real (1834–1914) | 1887, 1889 | 1887, 1889 | Progressist | 18th Reg. | Carlos I (1889–1908) |
| Carlos I (1889–1908) ||||
| 39 | António de Serpa Pimentel (1825–1900) | 14 January 1890 | 11 October 1890 | Regenerator | 19th Reg. | Carlos I (1889–1908) |
| Carlos I (1889–1908) ||
| Carlos I (1889–1908) ||||
| 40 | João Crisóstomo de Abreu e Sousa (1811–1895) | 11 October 1890 | 18 January 1892 | Independent | 20th Reg. | Carlos I (1889–1908) |
| Carlos I (1889–1908) ||
| Carlos I (1889–1908) ||||
| 41 | José Dias Ferreira (1837–1909) | 18 January 1892 | 22 February 1893 | Independent | 21st Reg. | Carlos I (1889–1908) |
| Carlos I (1889–1908) ||
| Carlos I (1889–1908) ||||
| 42 | Ernesto Rodolfo Hintze Ribeiro (1849–1907) | 22 February 1893 | 5 February 1897 | Regenerator | 22nd Reg. | Carlos I (1889–1908) |
| Carlos I (1889–1908) ||
| Carlos I (1889–1908) ||||
| 43 | José Luciano de Castro Pereira Côrte-Real (2nd time) (1834–1914) | 5 February 1897 | 26 July 1900 | Progressist | 23rd Reg. | Carlos I (1889–1908) |
| Carlos I (1889–1908) ||
| Carlos I (1889–1908) ||||
| 44 | Ernesto Rodolfo Hintze Ribeiro (2nd time) (1849–1907) | 26 July 1900 | 20 October 1904 | Regenerator | 24th Reg. | Carlos I (1889–1908) |
| Carlos I (1889–1908) ||
| Carlos I (1889–1908) ||||
| 45 | José Luciano de Castro Pereira Côrte-Real (3rd time) (1834–1914) | 20 October 1904 | 19 March 1906 | Progressist | 25th Reg. | Carlos I (1889–1908) |
| Carlos I (1889–1908) ||
| Carlos I (1889–1908) ||||
| 46 | Ernesto Rodolfo Hintze Ribeiro (3rd time) (1849–1907) | 19 March 1906 | 19 May 1906 | Regenerator | 26th Reg. | Carlos I (1889–1908) |
| Carlos I (1889–1908) ||
| Carlos I (1889–1908) ||||
| 47 | João Ferreira Franco Pinto Castelo-Branco (1855–1929) | 19 May 1906 | 4 February 1908 | Liberal Regenerator | 27th Reg. | Carlos I (1889–1908) |
| Carlos I (1889–1908) ||
| Carlos I (1889–1908) ||||
| 48 | Francisco Joaquim Ferreira do Amaral (1844–1923) | 4 February 1908 | 26 December 1908 | Independent | 28th Reg. | Manuel II (1908–1910) |
| Manuel II (1908–1910) ||
| Manuel II (1908–1910) ||||
| 49 | Artur Alberto de Campos Henriques (1853–1922) | 26 December 1908 | 11 April 1909 | Independent (Regenerator and Progressist) | 29th Reg. | Manuel II (1908–1910) |
| Manuel II (1908–1910) ||
| 50 | Sebastião Custódio de Sousa Teles (1847–1921) | 11 April 1909 | 14 May 1909 | Independent | 30th Reg. | Manuel II (1908–1910) |
| Manuel II (1908–1910) ||
| Manuel II (1908–1910) ||||
| 51 | Venceslau de Sousa Pereira de Lima (1858–1919) | 14 May 1909 | 22 December 1909 | Independent | 31st Reg. | Manuel II (1908–1910) |
| Manuel II (1908–1910) ||
| 52 | Francisco António da Veiga Beirão (1841–1916) | 22 December 1909 | 26 June 1910 | Regenerator | 32nd Reg. | Manuel II (1908–1910) |
| Manuel II (1908–1910) ||
| 53 | António Teixeira de Sousa (1857–1917) | 26 June 1910 | 5 October 1910 | Regenerator | 33rd Reg. | Manuel II (1908–1910) |
| Manuel II (1908–1910) ||
| Manuel II (1908–1910) ||||

### First Republic (1910–1926)

| No. | Name (Birth–Death) | Term of office — Electoral mandates | Term of office — Electoral mandates | Political party | Government | President (Mandate) |
| 54 | Joaquim Teófilo Fernandes Braga (1843–1924) | 5 October 1910 | 4 September 1911 | Republican | 1st | Teófilo Braga (1910–1911) |
| Teófilo Braga (1910–1911) ||
| Teófilo Braga (1910–1911) ||||
| 55 | João Pinheiro Chagas (1863–1925) | 4 September 1911 | 13 November 1911 | Republican | 2nd | Manuel de Arriaga (1911–1915) |
| Manuel de Arriaga (1911–1915) ||
| 56 | Augusto César de Almeida de Vasconcelos Correia (1867–1951) | 13 November 1911 | 16 June 1912 | Republican | 3rd | Manuel de Arriaga (1911–1915) |
| Manuel de Arriaga (1911–1915) ||
| 57 | Duarte Leite Pereira da Silva (1864–1950) | 16 June 1912 | 23 September 1912 | Republican | 4th | Manuel de Arriaga (1911–1915) |
| Manuel de Arriaga (1911–1915) ||
| Manuel de Arriaga (1911–1915) |||
| — | Augusto César de Almeida de Vasconcelos Correia (1867–1951) (interim) | 23 September 1912 | 30 September 1912 | Republican | 4th | Manuel de Arriaga (1911–1915) |
| Manuel de Arriaga (1911–1915) ||
| — | Duarte Leite Pereira da Silva (1864–1950) | 30 September 1912 | 9 January 1913 | Republican | 4th | Manuel de Arriaga (1911–1915) |
| Manuel de Arriaga (1911–1915) ||
| 58 | Afonso Augusto da Costa (1871–1937) | 9 January 1913 | 9 February 1914 | Democratic | 5th | Manuel de Arriaga (1911–1915) |
| Manuel de Arriaga (1911–1915) ||
| 59 | Bernardino Luís Machado Guimarães (1851–1944) | 9 February 1914 | 12 December 1914 | Democratic | 6th, 7th | Manuel de Arriaga (1911–1915) |
| Manuel de Arriaga (1911–1915) ||
| Manuel de Arriaga (1911–1915) ||||
| 60 | Victor Hugo de Azevedo Coutinho (1871–1955) | 12 December 1914 | 28 January 1915 | Democratic | 8th | Manuel de Arriaga (1911–1915) |
| Manuel de Arriaga (1911–1915) ||
| 61 | Joaquim Pereira Pimenta de Castro (1846–1918) | 28 January 1915 | 14 May 1915 | Independent | 9th | Manuel de Arriaga (1911–1915) |
| Manuel de Arriaga (1911–1915) ||
| — | Constitutional Junta composed of: José Norton de Matos António Maria da Silva José de Freitas Ribeiro Alfredo de Sá Cardoso Álvaro de Castro | 14 May 1915 | 15 May 1915 | None | — | Manuel de Arriaga (1911–1915) |
| Manuel de Arriaga (1911–1915) ||
| — | João Pinheiro Chagas (did not take office) (1863–1925) | 15 May 1915 | 17 May 1915 | Independent | 10th, 11th | Manuel de Arriaga (1911–1915) |
| Manuel de Arriaga (1911–1915) ||
| 62 | José Augusto Soares Ribeiro de Castro (1868–1929) | 17 May 1915 | 29 November 1915 | Democratic | 10th, 11th | Teófilo Braga (1915) |
| Teófilo Braga (1915) ||
| 63 | Afonso Augusto da Costa (2nd time) (1871–1937) | 29 November 1915 | 16 March 1916 | Democratic | 12th | Bernardino Machado (1915–1917) |
| Bernardino Machado (1915–1917) ||
| Bernardino Machado (1915–1917) ||||
| 64 | António José de Almeida (1866–1929) | 16 March 1916 | 25 April 1917 | Sacred Union (Evolutionist Party with the Democrats) | 13th | Bernardino Machado (1915–1917) |
| Bernardino Machado (1915–1917) ||
| 65 | Afonso Augusto da Costa (3rd time) (1871–1937) | 25 April 1917 | 7 October 1917 | Democratic | 14th | Bernardino Machado (1915–1917) |
| Bernardino Machado (1915–1917) ||
| Bernardino Machado (1915–1917) |||
| — | José Maria Mendes Ribeiro Norton de Matos (1867–1955) (interim) | 7 October 1917 | 25 October 1917 | Democratic | 14th | Bernardino Machado (1915–1917) |
| Bernardino Machado (1915–1917) ||
| — | Afonso Augusto da Costa (1871–1937) | 25 October 1917 | 17 November 1917 | Democratic | 14th | Bernardino Machado (1915–1917) |
| Bernardino Machado (1915–1917) ||
| — | José Maria Mendes Ribeiro Norton de Matos (1867–1955) (interim) | 17 November 1917 | 8 December 1917 | Democratic | 14th | Bernardino Machado (1915–1917) |
| Bernardino Machado (1915–1917) ||
| Bernardino Machado (1915–1917) |||
| 66 | Sidónio Bernardino Cardoso da Silva Pais (1872–1918) | 8 December 1917 | 14 December 1918 (died) | National Republican | 15th, 16th | Sidónio Pais (1918) |
| Sidónio Pais (1918) ||
| Sidónio Pais (1918) |||
| 67 | João do Canto e Castro da Silva Antunes Júnior (1862–1934) | 14 December 1918 | 23 December 1918 | National Republican | 15th, 16th | João do Canto e Castro (1918–1919) |
| João do Canto e Castro (1918–1919) ||
| 68 | João Tamagnini de Sousa Barbosa (1883–1948) | 23 December 1918 | 27 January 1919 | National Republican | 17th, 18th | João do Canto e Castro (1918–1919) |
| João do Canto e Castro (1918–1919) ||
| João do Canto e Castro (1918–1919) ||||
| 69 | José Maria Mascarenhas Relvas (1858–1929) | 27 January 1919 | 30 March 1919 | Independent | 19th | João do Canto e Castro (1918–1919) |
| João do Canto e Castro (1918–1919) ||
| 70 | Domingos Leite Pereira (1882–1956) | 30 March 1919 | 30 June 1919 | Independent | 20th | João do Canto e Castro (1918–1919) |
| João do Canto e Castro (1918–1919) ||
| 71 | Alfredo Ernesto de Sá Cardoso (1864–1950) | 30 June 1919 | 15 January 1920 | Democratic | 21st | João do Canto e Castro (1918–1919) |
| João do Canto e Castro (1918–1919) ||
| — | Francisco José Fernandes Costa (did not take office) (1857–1925) | 15 January 1920 | 15 January 1920 | Republican Liberal | 22nd | António José de Almeida (1919–1923) |
| António José de Almeida (1919–1923) ||
| António José de Almeida (1919–1923) ||||
| — | Alfredo Ernesto de Sá Cardoso (reconducted) (1864–1950) | 15 January 1920 | 21 January 1920 | Democratic | 21st | António José de Almeida (1919–1923) |
| António José de Almeida (1919–1923) ||
| António José de Almeida (1919–1923) ||||
| 72 | Domingos Leite Pereira (2nd time) (1882–1956) | 21 January 1920 | 8 March 1920 | Independent | 23rd | António José de Almeida (1919–1923) |
| António José de Almeida (1919–1923) ||
| 73 | António Maria Baptista (1866–1920) | 8 March 1920 | 6 June 1920 (died) | Democratic | 24th | António José de Almeida (1919–1923) |
| António José de Almeida (1919–1923) ||
| António José de Almeida (1919–1923) |||
| 74 | José Ramos Preto (1871–1949) | 6 June 1920 | 26 June 1920 | Democratic | 24th | António José de Almeida (1919–1923) |
| António José de Almeida (1919–1923) ||
| António José de Almeida (1919–1923) ||||
| 75 | António Maria da Silva (1872–1950) | 26 June 1920 | 19 July 1920 | Democratic (with the Socialists and Populars) | 25th | António José de Almeida (1919–1923) |
| António José de Almeida (1919–1923) ||
| 76 | António Joaquim Granjo (1881–1921) | 19 July 1920 | 20 November 1920 | Republican Liberal (with the Reconstitution Party) | 26th | António José de Almeida (1919–1923) |
| António José de Almeida (1919–1923) ||
| 77 | Álvaro Xavier de Castro (1878–1928) | 20 November 1920 | 30 November 1920 | Democratic (with Reconstitution Party and Populars) | 27th | António José de Almeida (1919–1923) |
| António José de Almeida (1919–1923) ||
| António José de Almeida (1919–1923) ||||
| 78 | Liberato Damião Ribeiro Pinto (1880–1949) | 30 November 1920 | 2 March 1921 | Democratic (with Reconstitution Party and Populars) | 28th | António José de Almeida (1919–1923) |
| António José de Almeida (1919–1923) ||
| António José de Almeida (1919–1923) ||||
| 79 | Bernardino Luís Machado Guimarães (2nd time) (1851–1944) | 2 March 1921 | 23 May 1921 | Democratic (with Reconstitution Party and Populars) | 29th | António José de Almeida (1919–1923) |
| António José de Almeida (1919–1923) ||
| António José de Almeida (1919–1923) ||||
| 80 | Tomé José de Barros Queirós (1872–1925) | 23 May 1921 | 30 August 1921 | Republican Liberal | 30th | António José de Almeida (1919–1923) |
| António José de Almeida (1919–1923) ||
| António José de Almeida (1919–1923) ||||
| 81 | António Joaquim Granjo (2nd time) (1881–1921) | 30 August 1921 | 19 October 1921 (Died) | Republican Liberal | 31st | António José de Almeida (1919–1923) |
| António José de Almeida (1919–1923) ||
| António José de Almeida (1919–1923) ||||
| 82 | António Manuel Maria Coelho (1857–1943) | 19 October 1921 | 5 November 1921 | Independent | 32nd | António José de Almeida (1919–1923) |
| António José de Almeida (1919–1923) ||
| António José de Almeida (1919–1923) ||||
| 83 | Carlos Henrique da Silva Maia Pinto (1866–1932) | 5 November 1921 | 16 December 1921 | Independent | 33rd | António José de Almeida (1919–1923) |
| António José de Almeida (1919–1923) ||
| António José de Almeida (1919–1923) ||||
| 84 | Francisco Pinto da Cunha Leal (1888–1970) | 16 December 1921 | 7 February 1922 | Democratic | 34th | António José de Almeida (1919–1923) |
| António José de Almeida (1919–1923) ||
| António José de Almeida (1919–1923) ||||
| 85 | António Maria da Silva (2nd time) (1872–1950) | 7 February 1922 | 15 November 1923 | Democratic | 35th, 36th, 37th | António José de Almeida (1919–1923) |
| António José de Almeida (1919–1923) ||
| 86 | António Ginestal Machado (1874–1940) | 15 November 1923 | 18 December 1923 | Nationalist Republican | 38th | Manuel Teixeira Gomes (1923–1925) |
| Manuel Teixeira Gomes (1923–1925) ||
| Manuel Teixeira Gomes (1923–1925) ||||
| 87 | Álvaro Xavier de Castro (2nd time) (1878–1928) | 18 December 1923 | 7 July 1924 | Nationalist Republican (with the Democratics) | 39th | Manuel Teixeira Gomes (1923–1925) |
| Manuel Teixeira Gomes (1923–1925) ||
| Manuel Teixeira Gomes (1923–1925) ||||
| 88 | Alfredo Rodrigues Gaspar (1865–1938) | 7 July 1924 | 22 November 1924 | Democratic | 40th | Manuel Teixeira Gomes (1923–1925) |
| Manuel Teixeira Gomes (1923–1925) ||
| 89 | José Domingues dos Santos (1885–1958) | 22 November 1924 | 15 February 1925 | Democratic Leftwing Republican | 41st | Manuel Teixeira Gomes (1923–1925) |
| Manuel Teixeira Gomes (1923–1925) ||
| Manuel Teixeira Gomes (1923–1925) ||||
| 90 | Vitorino Máximo de Carvalho Guimarães (1876–1957) | 15 February 1925 | 1 July 1925 | Democratic | 42nd | Manuel Teixeira Gomes (1923–1925) |
| Manuel Teixeira Gomes (1923–1925) ||
| 91 | António Maria da Silva (3rd time) (1872–1950) | 1 July 1925 | 1 August 1925 | Democratic | 43rd | Manuel Teixeira Gomes (1923–1925) |
| Manuel Teixeira Gomes (1923–1925) ||
| Manuel Teixeira Gomes (1923–1925) ||||
| 92 | Domingos Leite Pereira (3rd time) (1882–1956) | 1 August 1925 | 18 December 1925 | Democratic | 44th | Manuel Teixeira Gomes (1923–1925) |
| Manuel Teixeira Gomes (1923–1925) ||
| Manuel Teixeira Gomes (1923–1925) ||||
| 93 | António Maria da Silva (4th time) (1872–1950) | 18 December 1925 | 30 May 1926 | Democratic | 45th | Bernardino Machado (1925–1926) |
| Bernardino Machado (1925–1926) ||
| Bernardino Machado (1925–1926) ||||

### Dictatorship (1926–1974)

| No. | Name (Birth–Death) | Term of office — Electoral mandates | Term of office — Electoral mandates | Political party | Government | President (Mandate) |
| Ditadura Nacional – Military Dictatorship (1926–1932) ||||||||
| 94 | José Mendes Cabeçadas Júnior (1883–1965) | 30 May 1926 | 19 June 1926 | None | 1st Dict. | José Mendes Cabeçadas (1926) |
| José Mendes Cabeçadas (1926) ||
| José Mendes Cabeçadas (1926) ||||
| 95 | Manuel de Oliveira Gomes da Costa (1863–1929) | 19 June 1926 | 9 July 1926 | None | 2nd Dict. | Manuel Gomes da Costa (1926) |
| Manuel Gomes da Costa (1926) ||
| Manuel Gomes da Costa (1926) ||||
| 96 | António Óscar Fragoso Carmona (1869–1951) | 9 July 1926 | 18 April 1928 | None | 3rd Dict. | António Óscar Carmona (1926–1951) |
| António Óscar Carmona (1926–1951) ||
| António Óscar Carmona (1926–1951) ||||
| 97 | José Vicente de Freitas (1869–1952) | 18 April 1928 | 8 July 1929 | None | 4th Dict. 5th Dict. | António Óscar Carmona (1926–1951) |
| António Óscar Carmona (1926–1951) ||
| António Óscar Carmona (1926–1951) ||||
| 98 | Artur Ivens Ferraz (1870–1933) | 8 July 1929 | 21 January 1930 | None | 6th Dict. | António Óscar Carmona (1926–1951) |
| António Óscar Carmona (1926–1951) ||
| António Óscar Carmona (1926–1951) ||||
| 99 | Domingos Augusto Alves da Costa e Oliveira (1873–1957) | 21 January 1930 | 5 July 1932 | National Union | 7th Dict. | António Óscar Carmona (1926–1951) |
| António Óscar Carmona (1926–1951) ||
| António Óscar Carmona (1926–1951) ||||
| António Óscar Carmona (1926–1951) |||||||
| 100 | António de Oliveira Salazar (1889–1970) | 5 July 1932 | 25 September 1968 | National Union | 8th Dict. 9th Dict. 10th Dict. | António Óscar Carmona (1926–1951) |
| 100 | António de Oliveira Salazar (1889–1970) | 1934, 1938, 1942, 1945, 1949, 1953, 1957, 1961, 1965 | 1934, 1938, 1942, 1945, 1949, 1953, 1957, 1961, 1965 | National Union | 8th Dict. 9th Dict. 10th Dict. | Francisco Craveiro Lopes (1951–1958) |
| 100 | António de Oliveira Salazar (1889–1970) | Longest-serving prime minister in Portuguese history; Formation of the Estado Novo; Portuguese Constitution of 1933; Strong economic and fiscal stabilization; Spanish Civil War; 1936 Naval Revolt; Concordat of 1940 between Portugal and the Holy See; Portugal neutrality during World War II; Marshall Plan; Repression of civil liberties and political freedoms; co-founder of United Nations, NATO, OCDE and EFTA; 1958 Presidential election fallout; 1960s Economic expansion; loss of Portuguese India; 1961 "Abrilada" attempted coup; Portuguese Colonial War; 1962 Academic Crisis; 1967 Lisbon floods; Replaced after suffering a brain hemorrhage. | Longest-serving prime minister in Portuguese history; Formation of the Estado Novo; Portuguese Constitution of 1933; Strong economic and fiscal stabilization; Spanish Civil War; 1936 Naval Revolt; Concordat of 1940 between Portugal and the Holy See; Portugal neutrality during World War II; Marshall Plan; Repression of civil liberties and political freedoms; co-founder of United Nations, NATO, OCDE and EFTA; 1958 Presidential election fallout; 1960s Economic expansion; loss of Portuguese India; 1961 "Abrilada" attempted coup; Portuguese Colonial War; 1962 Academic Crisis; 1967 Lisbon floods; Replaced after suffering a brain hemorrhage. | Longest-serving prime minister in Portuguese history; Formation of the Estado Novo; Portuguese Constitution of 1933; Strong economic and fiscal stabilization; Spanish Civil War; 1936 Naval Revolt; Concordat of 1940 between Portugal and the Holy See; Portugal neutrality during World War II; Marshall Plan; Repression of civil liberties and political freedoms; co-founder of United Nations, NATO, OCDE and EFTA; 1958 Presidential election fallout; 1960s Economic expansion; loss of Portuguese India; 1961 "Abrilada" attempted coup; Portuguese Colonial War; 1962 Academic Crisis; 1967 Lisbon floods; Replaced after suffering a brain hemorrhage. | Longest-serving prime minister in Portuguese history; Formation of the Estado Novo; Portuguese Constitution of 1933; Strong economic and fiscal stabilization; Spanish Civil War; 1936 Naval Revolt; Concordat of 1940 between Portugal and the Holy See; Portugal neutrality during World War II; Marshall Plan; Repression of civil liberties and political freedoms; co-founder of United Nations, NATO, OCDE and EFTA; 1958 Presidential election fallout; 1960s Economic expansion; loss of Portuguese India; 1961 "Abrilada" attempted coup; Portuguese Colonial War; 1962 Academic Crisis; 1967 Lisbon floods; Replaced after suffering a brain hemorrhage. | Américo Tomás (1958–1974) |
| 101 | Marcello José das Neves Alves Caetano (1906–1980) | 25 September 1968 | 25 April 1974 | National Union from 1970 People's National Action | 11th Dict. | Américo Tomás (1958–1974) |
| Américo Tomás (1958–1974) ||
| Américo Tomás (1958–1974) ||||

### Second Republic (1974–present)

| No. | Name (Birth–Death) | Term of office — Electoral mandates | Term of office — Electoral mandates | Political party | Government | President (Mandate) |
| Provisional Governments of the Revolutionary Period (1974–1976) ||||||||
| — | National Salvation Junta composed of: António de Spínola, Francisco da Costa Gomes Jaime Silvério Marques, Diogo Neto, Carlos Galvão de Melo José Baptista Pinheiro de Azevedo, António Alva Rosa Coutinho | 25 April 1974 | 16 May 1974 | None | — | António de Spínola (1974) |
| António de Spínola (1974) ||
| António de Spínola (1974) ||||
| 102 | Adelino da Palma Carlos (1905–1992) | 16 May 1974 | 18 July 1974 | Independent | Prov. I | António de Spínola (1974) |
| António de Spínola (1974) ||
| António de Spínola (1974) ||||
| 103 | Vasco dos Santos Gonçalves (1921–2005) | 18 July 1974 | 19 September 1975 | Independent | Prov. II | António de Spínola (1974) |
| 103 | Vasco dos Santos Gonçalves (1921–2005) | 18 July 1974 | 19 September 1975 | Independent | Prov. III | António de Spínola (1974) |
| 103 | Vasco dos Santos Gonçalves (1921–2005) | 18 July 1974 | 19 September 1975 | Independent | Prov. IV | Francisco da Costa Gomes (1974–1976) |
| 103 | Vasco dos Santos Gonçalves (1921–2005) | 18 July 1974 | 19 September 1975 | Independent | Prov. V | Francisco da Costa Gomes (1974–1976) |
| Francisco da Costa Gomes (1974–1976) ||
| Francisco da Costa Gomes (1974–1976) ||||
| 104 | José Baptista Pinheiro de Azevedo (1917–1983) | 19 September 1975 | 23 June 1976 | Independent | Prov. VI | Francisco da Costa Gomes (1974–1976) |
| Francisco da Costa Gomes (1974–1976) ||
| Francisco da Costa Gomes (1974–1976) ||||
| — | Vasco Fernando Leotte de Almeida e Costa (1932–2010) interim | 23 June 1976 | 23 July 1976 | Independent | (Prov. VI) | Francisco da Costa Gomes (1974–1976) |
| Francisco da Costa Gomes (1974–1976) ||
| Francisco da Costa Gomes (1974–1976) ||||
| Prime Ministers heading Constitutional Governments (1976–present) ||||||||
| 105 | Mário Alberto Nobre Lopes Soares (1924–2017) | 23 July 1976 | 28 August 1978 | Socialist | I | António Ramalho Eanes (1976–1986) |
| 105 | Mário Alberto Nobre Lopes Soares (1924–2017) | 23 July 1976 | 28 August 1978 | Socialist | II | António Ramalho Eanes (1976–1986) |
| António Ramalho Eanes (1976–1986) ||
| António Ramalho Eanes (1976–1986) ||||
| 106 | Alfredo Jorge Nobre da Costa (1923–1996) | 28 August 1978 | 22 November 1978 | Independent | III | António Ramalho Eanes (1976–1986) |
| António Ramalho Eanes (1976–1986) ||
| António Ramalho Eanes (1976–1986) ||||
| 107 | Carlos Alberto da Mota Pinto (1936–1985) | 22 November 1978 | 1 August 1979 | Independent | IV | António Ramalho Eanes (1976–1986) |
| António Ramalho Eanes (1976–1986) ||
| António Ramalho Eanes (1976–1986) ||||
| 108 | Maria de Lourdes Ruivo da Silva de Matos Pintasilgo (1930–2004) | 1 August 1979 | 3 January 1980 | Independent | V | António Ramalho Eanes (1976–1986) |
| António Ramalho Eanes (1976–1986) ||
| António Ramalho Eanes (1976–1986) ||||
| 109 | Francisco Manuel Lumbrales de Sá Carneiro (1934–1980) | 3 January 1980 | 4 December 1980 (died) | Social Democratic | VI | António Ramalho Eanes (1976–1986) |
| António Ramalho Eanes (1976–1986) ||
| António Ramalho Eanes (1976–1986) ||||
| — | Diogo Pinto de Freitas do Amaral (1941–2019) interim | 4 December 1980 | 9 January 1981 | Democratic and Social Centre | (VI) | António Ramalho Eanes (1976–1986) |
| António Ramalho Eanes (1976–1986) ||
| António Ramalho Eanes (1976–1986) ||||
| 110 | Francisco José Pereira Pinto Balsemão (1937–) | 9 January 1981 | 9 June 1983 | Social Democratic | VII | António Ramalho Eanes (1976–1986) |
| 110 | Francisco José Pereira Pinto Balsemão (1937–) | 9 January 1981 | 9 June 1983 | Social Democratic | VIII | António Ramalho Eanes (1976–1986) |
| António Ramalho Eanes (1976–1986) ||
| António Ramalho Eanes (1976–1986) ||||
| 111 | Mário Alberto Nobre Lopes Soares (1924–2017) (2nd time) | 9 June 1983 | 6 November 1985 | Socialist | IX | António Ramalho Eanes (1976–1986) |
| António Ramalho Eanes (1976–1986) ||
| António Ramalho Eanes (1976–1986) ||||
| 112 | Aníbal António Cavaco Silva (1939–) | 6 November 1985 | 28 October 1995 | Social Democratic | X | António Ramalho Eanes (1976–1986) |
| 112 | Aníbal António Cavaco Silva (1939–) | 6 November 1985 | 28 October 1995 | Social Democratic | XI | Mário Soares (1986–1996) |
| 112 | Aníbal António Cavaco Silva (1939–) | 6 November 1985 | 28 October 1995 | Social Democratic | XII | Mário Soares (1986–1996) |
| Mário Soares (1986–1996) ||
| Mário Soares (1986–1996) ||||
| 113 | António Manuel de Oliveira Guterres (1949–) | 28 October 1995 | 6 April 2002 | Socialist | XIII | Mário Soares (1986–1996) |
| 113 | António Manuel de Oliveira Guterres (1949–) | 28 October 1995 | 6 April 2002 | Socialist | XIV | Jorge Sampaio (1996–2006) |
| Jorge Sampaio (1996–2006) ||
| Jorge Sampaio (1996–2006) ||||
| 114 | José Manuel Durão Barroso (1956–) | 6 April 2002 | 17 July 2004 | Social Democratic | XV | Jorge Sampaio (1996–2006) |
| Jorge Sampaio (1996–2006) ||
| Jorge Sampaio (1996–2006) ||||
| 115 | Pedro Miguel de Santana Lopes (1956–) | 17 July 2004 | 12 March 2005 | Social Democratic | XVI | Jorge Sampaio (1996–2006) |
| Jorge Sampaio (1996–2006) ||
| Jorge Sampaio (1996–2006) ||||
| 116 | José Sócrates de Carvalho Pinto de Sousa (1957–) | 12 March 2005 | 21 June 2011 | Socialist | XVII | Jorge Sampaio (1996–2006) |
| 116 | José Sócrates de Carvalho Pinto de Sousa (1957–) | 12 March 2005 | 21 June 2011 | Socialist | XVIII | Aníbal Cavaco Silva (2006–2016) |
| Aníbal Cavaco Silva (2006–2016) ||
| Aníbal Cavaco Silva (2006–2016) ||||
| 117 | Pedro Manuel Mamede Passos Coelho (1964–) | 21 June 2011 | 26 November 2015 | Social Democratic | XIX | Aníbal Cavaco Silva (2006–2016) |
| 117 | Pedro Manuel Mamede Passos Coelho (1964–) | 21 June 2011 | 26 November 2015 | Social Democratic | XX | Aníbal Cavaco Silva (2006–2016) |
| Aníbal Cavaco Silva (2006–2016) ||
| Aníbal Cavaco Silva (2006–2016) ||||
| 118 | António Luís Santos da Costa (1961–) | 26 November 2015 | 2 April 2024 | Socialist | XXI | Aníbal Cavaco Silva (2006–2016) |
| 118 | António Luís Santos da Costa (1961–) | 26 November 2015 | 2 April 2024 | Socialist | XXII | Marcelo Rebelo de Sousa (2016–present) |
| 118 | António Luís Santos da Costa (1961–) | 26 November 2015 | 2 April 2024 | Socialist | XXIII | Marcelo Rebelo de Sousa (2016–present) |
| Marcelo Rebelo de Sousa (2016–present) ||
| Marcelo Rebelo de Sousa (2016–present) ||||
| 119 | Luís Filipe Montenegro Cardoso de Morais Esteves (1973–) | 2 April 2024 | Incumbent | Social Democratic | XXIV | Marcelo Rebelo de Sousa (2016–present) |
| Marcelo Rebelo de Sousa (2016–present) ||
| Marcelo Rebelo de Sousa (2016–present) ||||