1834 in Portugal

Incumbents

• Monarch: Michael I ; Mary II
• Prime Minister: Pedro de Sousa Holstein, 1st Duke of Palmela

Events

• 16 May - Battle of Asseiceira
• 26 May - Concession of Evoramonte, ending the civil war period; Miguel I of Portugal surrendered
• 30 May - Extinction of religious orders by D. Pedro and his minister Joaquim António de Aguiar
• 24 September - Pedro de Sousa Holstein, 1st Duke of Palmela becomes the first official prime minister of Portugal
• The National Republican Guard established

Deaths

• 24 September - King Dom Pedro IV, King of Portugal, Emperor of Brazil.