Events in the year 1838 in Peru.
Incumbents Supreme Protector of the Peru-Bolivian Confederation: Andres de Santa Cruz President of the Republic of North Peru: Luis Orbegoso until July 30, José de la Riva Agüero President of the Republic of South Peru: Ramón Herrera y Rodado until October 12, Juan Pío de Tristán y Moscoso
Events January 12 and 13 - War of the Confederation: Battle of Islay July 30 - North Peru President Obregoso declares secession of his republic from the Peru-Bolivian Confederation. August 21 - Battle of Portada de Guías on the outskirts of Lima October - Chilean Army occupies Lima November 3 - Chileans abandon Lima References