- Prime Ministers since 1926
- ESTADO NOVO (SECOND REPUBLIC, 1926-1974)• José Mendes Cabeçadas (May-June 1926)• Manuel Gomes da Costa (June-July 1926)• Antonió Óscar de Fragoso Carmona (July 1926-January 1928)• Artur Ivens Ferraz (January1928-April 1928)• José Vicente de Freitas (April 1928-Nov. 1928)• José Vicente de Freitas (November 1928-July 1929)• Artur Ivens Ferraz (July 1929-January 1930)• Domingos da Costa Oliveira (January 1930-July 1932)• António de Oliveira Salazar (July 1932-September 1968)• Marcello Caetano (September 1968-April 1974)THIRD REPUBLIC (1974-PRESENT)• Provisional Governments (1974-1976)• Adelino de Palma Carlos (May-July 1974)• Vasco Gonçalves (July 1974-September 1974)• Vasco Gonçalves (September 1974-March 1975)• Vasco Gonçalves (11 March -8 August 1975)• Vasco Gonçalves (8 August-19 September 1975)• Azevedo Pinheiro (19 September 1975-July 1976)• Constitutional Governments (1976-present)• Mário Soares (July 1976-January 1978)• Mário Soares (January 1978-August 1978)• Alfredo Nobre de Costa (August-November 1978)• Carlos Mota Pinto (November 1978-July 1979)• Maria de Lourdes Pintasilgo (July 1979-January 1980)• Francisco Sá Carneiro (January 1980-December 1980) (Sá Carneiro died in air crash 1 December 1980)• Francisco Pinto Balsemão (January 1981-September 1981)• Francisco Pinto Balsemão (September 1981-June 1983)• Mário Soares (June 1983-October 1985)• Aníbal Cavaco Silva (October 1985-July 1987)• Aníbal Cavaco Silva (July 1987-July 1991)• Aníbal Cavaco Silva (July 1991-October 1995)• António Guterres (October 1995-October 1999)• António Guterres (October 1999-March 2002)• José Durão Barroso (March 2002-July 2004)• Pedro Santana Lopes (July 2004-February 2005)• José Sócrates (February 2005- )
Historical dictionary of Portugal 3rd ed.. by Douglas L. Wheeler . 2014.