• President: Américo Tomás
• Prime Minister: Marcelo Caetano

• 22 November – Operation Green Sea, an attack on Conakry, the capital of Guinea

Undated edit

• Operation Gordian Knot, a military campaign in Portuguese Mozambique, part of the Portuguese Colonial War (1961–1974).
• The Portuguese Workers' Communist Party, a Maoist political party, founded

• 26 April – Francisco Cunha Leal, politician (born 1888)
• 3 June – Aníbal Milhais, the most decorated Portuguese soldier of World War I (born 1895).^[1][2]
• 27 July – António de Oliveira Salazar, professor and politician (born 1889)
• 22 November – Casimiro de Oliveira, racing driver (born 1907)